Configuration

The Tauri configuration object. It is read from a file where you can define your frontend assets, configure the bundler and define a tray icon.

The configuration file is generated by the tauri init command that lives in your Tauri application source directory (src-tauri).

Once generated, you may modify it at will to customize your Tauri application.

File Formats

By default, the configuration is defined as a JSON file named tauri.conf.json.

Tauri also supports JSON5 and TOML files via the config-json5 and config-toml Cargo features, respectively. The JSON5 file name must be either tauri.conf.json or tauri.conf.json5. The TOML file name is Tauri.toml.

Platform-Specific Configuration

In addition to the default configuration file, Tauri can read a platform-specific configuration from tauri.linux.conf.json, tauri.windows.conf.json, tauri.macos.conf.json, tauri.android.conf.json and tauri.ios.conf.json (or Tauri.linux.toml, Tauri.windows.toml, Tauri.macos.toml, Tauri.android.toml and Tauri.ios.toml if the Tauri.toml format is used), which gets merged with the main configuration object.

Configuration Structure

The configuration is composed of the following objects:

app: The Tauri configuration
build: The build configuration
bundle: The bundle configurations
plugins: The plugins configuration

Example tauri.config.json file:

{
  "productName": "tauri-app",
  "version": "0.1.0",
  "build": {
    "beforeBuildCommand": "",
    "beforeDevCommand": "",
    "devUrl": "../dist",
    "frontendDist": "../dist"
  },
  "app": {
    "security": {
      "csp": null
    },
    "windows": [
      {
        "fullscreen": false,
        "height": 600,
        "resizable": true,
        "title": "Tauri App",
        "width": 800
      }
    ]
  },
  "bundle": {},
  "plugins": {}
}

Object Properties:

app
build
bundle
identifier (required)
mainBinaryName
plugins
productName
version

app

AppConfig

The App configuration.

{
  "enableGTKAppId": false,
  "macOSPrivateApi": false,
  "security": {
    "assetProtocol": {
      "enable": false,
      "scope": []
    },
    "capabilities": [],
    "dangerousDisableAssetCspModification": false,
    "freezePrototype": false,
    "pattern": {
      "use": "brownfield"
    }
  },
  "windows": [],
  "withGlobalTauri": false
}

build

BuildConfig

The build configuration.

Default: {}

bundle

BundleConfig

The bundler configuration.

{
  "active": false,
  "android": {
    "minSdkVersion": 24
  },
  "createUpdaterArtifacts": false,
  "iOS": {
    "minimumSystemVersion": "13.0"
  },
  "icon": [],
  "linux": {
    "appimage": {
      "bundleMediaFramework": false,
      "files": {}
    },
    "deb": {
      "files": {}
    },
    "rpm": {
      "epoch": 0,
      "files": {},
      "release": "1"
    }
  },
  "macOS": {
    "dmg": {
      "appPosition": {
        "x": 180,
        "y": 170
      },
      "applicationFolderPosition": {
        "x": 480,
        "y": 170
      },
      "windowSize": {
        "height": 400,
        "width": 660
      }
    },
    "files": {},
    "hardenedRuntime": true,
    "minimumSystemVersion": "10.13"
  },
  "targets": "all",
  "useLocalToolsDir": false,
  "windows": {
    "allowDowngrades": true,
    "certificateThumbprint": null,
    "digestAlgorithm": null,
    "nsis": null,
    "signCommand": null,
    "timestampUrl": null,
    "tsp": false,
    "webviewInstallMode": {
      "silent": true,
      "type": "downloadBootstrapper"
    },
    "wix": null
  }
}

identifier

string

The application identifier in reverse domain name notation (e.g. com.tauri.example). This string must be unique across applications since it is used in system configurations like the bundle ID and path to the webview data directory. This string must contain only alphanumeric characters (A-Z, a-z, and 0-9), hyphens (-), and periods (.).

mainBinaryName

string | null

App main binary filename. Defaults to the name of your cargo crate.

plugins

PluginConfig

The plugins config.

Default: {}

productName

string | null pattern of ^[^/\:*?"<>|]+$

App name.

version

string | null

App version. It is a semver version number or a path to a package.json file containing the version field. If removed the version number from Cargo.toml is used.

By default version 1.0 is used on Android.

Definitions

AndroidConfig

General configuration for the iOS target.

Object Properties:

minSdkVersion
versionCode

minSdkVersion

integer formatted as uint32

The minimum API level required for the application to run. The Android system will prevent the user from installing the application if the system’s API level is lower than the value specified.

Default: 24

versionCode

integer | null maximum of 2100000000, minimum of 1, formatted as uint32

The version code of the application. It is limited to 2,100,000,000 as per Google Play Store requirements.

By default we use your configured version and perform the following math: versionCode = version.major * 1000000 + version.minor * 1000 + version.patch

AppConfig

The App configuration object.

See more: <https://v2.tauri.app/reference/config/#appconfig>

Object Properties:

enableGTKAppId
macOSPrivateApi
security
trayIcon
windows
withGlobalTauri

enableGTKAppId

boolean

If set to true “identifier” will be set as GTK app ID (on systems that use GTK).

macOSPrivateApi

boolean

MacOS private API configuration. Enables the transparent background API and sets the fullScreenEnabled preference to true.

security

SecurityConfig

Security configuration.

{
  "assetProtocol": {
    "enable": false,
    "scope": []
  },
  "capabilities": [],
  "dangerousDisableAssetCspModification": false,
  "freezePrototype": false,
  "pattern": {
    "use": "brownfield"
  }
}

trayIcon

TrayIconConfig | null

Configuration for app tray icon.

windows

WindowConfig[]

The app windows configuration.

Default: []

withGlobalTauri

boolean

Whether we should inject the Tauri API on window.__TAURI__ or not.

AppImageConfig

Configuration for AppImage bundles.

See more: <https://v2.tauri.app/reference/config/#appimageconfig>

Object Properties:

bundleMediaFramework
files

bundleMediaFramework

boolean

Include additional gstreamer dependencies needed for audio and video playback. This increases the bundle size by ~15-35MB depending on your build system.

files

The files to include in the Appimage Binary.

Allows additional properties: string

Default: {}

AssetProtocolConfig

Config for the asset custom protocol.

See more: <https://v2.tauri.app/reference/config/#assetprotocolconfig>

Object Properties:

enable
scope

enable

boolean

Enables the asset protocol.

scope

FsScope

The access scope for the asset protocol.

Default: []

AssociationExt

string

An extension for a [FileAssociation].

A leading . is automatically stripped.

BeforeDevCommand

Any of the following:

string Run the given script with the default options.
Run the given script with custom options. Object Properties: - cwd - script (required) - wait ##### cwd string | null The current working directory. ##### script string The script to execute. ##### wait boolean Whether tauri dev should wait for the command to finish or not. Defaults to false.

Describes the shell command to run before tauri dev.

BuildConfig

The Build configuration object.

See more: <https://v2.tauri.app/reference/config/#buildconfig>

Object Properties:

beforeBuildCommand
beforeBundleCommand
beforeDevCommand
devUrl
features
frontendDist
runner

beforeBuildCommand

HookCommand | null

A shell command to run before tauri build kicks in.

The TAURI_ENV_PLATFORM, TAURI_ENV_ARCH, TAURI_ENV_FAMILY, TAURI_ENV_PLATFORM_VERSION, TAURI_ENV_PLATFORM_TYPE and TAURI_ENV_DEBUG environment variables are set if you perform conditional compilation.

beforeBundleCommand

HookCommand | null

A shell command to run before the bundling phase in tauri build kicks in.

The TAURI_ENV_PLATFORM, TAURI_ENV_ARCH, TAURI_ENV_FAMILY, TAURI_ENV_PLATFORM_VERSION, TAURI_ENV_PLATFORM_TYPE and TAURI_ENV_DEBUG environment variables are set if you perform conditional compilation.

beforeDevCommand

BeforeDevCommand | null

A shell command to run before tauri dev kicks in.

The TAURI_ENV_PLATFORM, TAURI_ENV_ARCH, TAURI_ENV_FAMILY, TAURI_ENV_PLATFORM_VERSION, TAURI_ENV_PLATFORM_TYPE and TAURI_ENV_DEBUG environment variables are set if you perform conditional compilation.

devUrl

string | null formatted as uri

The URL to load in development.

This is usually an URL to a dev server, which serves your application assets with hot-reload and HMR. Most modern JavaScript bundlers like vite provides a way to start a dev server by default.

If you don’t have a dev server or don’t want to use one, ignore this option and use frontendDist and point to a web assets directory, and Tauri CLI will run its built-in dev server and provide a simple hot-reload experience.

features

string[] | null

Features passed to cargo commands.

frontendDist

FrontendDist | null

The path to the application assets (usually the dist folder of your javascript bundler) or a URL that could be either a custom protocol registered in the tauri app (for example: myprotocol://) or a remote URL (for example: https://site.com/app).

When a path relative to the configuration file is provided, it is read recursively and all files are embedded in the application binary. Tauri then looks for an index.html and serves it as the default entry point for your application.

You can also provide a list of paths to be embedded, which allows granular control over what files are added to the binary. In this case, all files are added to the root and you must reference it that way in your HTML files.

When a URL is provided, the application won’t have bundled assets and the application will load that URL by default.

runner

string | null

The binary used to build and run the application.

BundleConfig

Configuration for tauri-bundler.

See more: <https://v2.tauri.app/reference/config/#bundleconfig>

Object Properties:

active
android
category
copyright
createUpdaterArtifacts
externalBin
fileAssociations
homepage
icon
iOS
license
licenseFile
linux
longDescription
macOS
publisher
resources
shortDescription
targets
useLocalToolsDir
windows

active

boolean

Whether Tauri should bundle your application or just output the executable.

android

AndroidConfig

Android configuration.

{
  "minSdkVersion": 24
}

copyright

string | null

A copyright string associated with your application.

createUpdaterArtifacts

Updater

Produce updaters and their signatures or not

externalBin

string[] | null

A list of—either absolute or relative—paths to binaries to embed with your application.

Note that Tauri will look for system-specific binaries following the pattern “binary-name{-target-triple}{.system-extension}”.

E.g. for the external binary “my-binary”, Tauri looks for:

“my-binary-x86_64-pc-windows-msvc.exe” for Windows
“my-binary-x86_64-apple-darwin” for macOS
“my-binary-x86_64-unknown-linux-gnu” for Linux

so don’t forget to provide binaries for all targeted platforms.

fileAssociations

FileAssociation[] | null

File associations to application.

homepage

string | null

A url to the home page of your application. If unset, will fallback to homepage defined in Cargo.toml.

Supported bundle targets: deb, rpm, nsis and msi.

icon

string[]

The app’s icons

Default: []

iOS

IosConfig

iOS configuration.

{
  "minimumSystemVersion": "13.0"
}

license

string | null

The package’s license identifier to be included in the appropriate bundles. If not set, defaults to the license from the Cargo.toml file.

licenseFile

string | null

The path to the license file to be included in the appropriate bundles.

linux

LinuxConfig

Configuration for the Linux bundles.

{
  "appimage": {
    "bundleMediaFramework": false,
    "files": {}
  },
  "deb": {
    "files": {}
  },
  "rpm": {
    "epoch": 0,
    "files": {},
    "release": "1"
  }
}

longDescription

string | null

A longer, multi-line description of the application.

macOS

MacConfig

Configuration for the macOS bundles.

{
  "dmg": {
    "appPosition": {
      "x": 180,
      "y": 170
    },
    "applicationFolderPosition": {
      "x": 480,
      "y": 170
    },
    "windowSize": {
      "height": 400,
      "width": 660
    }
  },
  "files": {},
  "hardenedRuntime": true,
  "minimumSystemVersion": "10.13"
}

publisher

string | null

The application’s publisher. Defaults to the second element in the identifier string.

Currently maps to the Manufacturer property of the Windows Installer and the Maintainer field of debian packages if the Cargo.toml does not have the authors field.

resources

BundleResources | null

App resources to bundle. Each resource is a path to a file or directory. Glob patterns are supported.

shortDescription

string | null

A short description of your application.

targets

BundleTarget

The bundle targets, currently supports [“deb”, “rpm”, “appimage”, “nsis”, “msi”, “app”, “dmg”] or “all”.

Default: "all"

useLocalToolsDir

boolean

Whether to use the project’s target directory, for caching build tools (e.g., Wix and NSIS) when building this application. Defaults to false.

If true, tools will be cached in target\.tauri-tools. If false, tools will be cached in the current user’s platform-specific cache directory.

An example where it can be appropriate to set this to true is when building this application as a Windows System user (e.g., AWS EC2 workloads), because the Window system’s app data directory is restricted.

windows

WindowsConfig

Configuration for the Windows bundles.

{
  "allowDowngrades": true,
  "certificateThumbprint": null,
  "digestAlgorithm": null,
  "nsis": null,
  "signCommand": null,
  "timestampUrl": null,
  "tsp": false,
  "webviewInstallMode": {
    "silent": true,
    "type": "downloadBootstrapper"
  },
  "wix": null
}

BundleResources

Any of the following:

string[] A list of paths to include.
A map of source to target paths. Allows additional properties: string

Definition for bundle resources. Can be either a list of paths to include or a map of source to target paths.

BundleTarget

Any of the following:

"all" Bundle all targets.
BundleType[] A list of bundle targets.
BundleType A single bundle target.

Targets to bundle. Each value is case insensitive.

BundleType

One of the following:

"deb" The debian bundle (.deb).
"rpm" The RPM bundle (.rpm).
"appimage" The AppImage bundle (.appimage).
"msi" The Microsoft Installer bundle (.msi).
"nsis" The NSIS bundle (.exe).
"app" The macOS application bundle (.app).
"dmg" The Apple Disk Image bundle (.dmg).

A bundle referenced by tauri-bundler.

BundleTypeRole

One of the following:

"Editor" CFBundleTypeRole.Editor. Files can be read and edited.
"Viewer" CFBundleTypeRole.Viewer. Files can be read.
"Shell" CFBundleTypeRole.Shell
"QLGenerator" CFBundleTypeRole.QLGenerator
"None" CFBundleTypeRole.None

macOS-only. Corresponds to CFBundleTypeRole

Capability

A grouping and boundary mechanism developers can use to isolate access to the IPC layer.

It controls application windows fine grained access to the Tauri core, application, or plugin commands. If a window is not matching any capability then it has no access to the IPC layer at all.

This can be done to create groups of windows, based on their required system access, which can reduce impact of frontend vulnerabilities in less privileged windows. Windows can be added to a capability by exact name (e.g. main-window) or glob patterns like * or admin-*. A Window can have none, one, or multiple associated capabilities.

Example

{
  "identifier": "main-user-files-write",
  "description": "This capability allows the `main` window on macOS and Windows access to `filesystem` write related commands and `dialog` commands to enable programatic access to files selected by the user.",
  "windows": [
    "main"
  ],
  "permissions": [
    "core:default",
    "dialog:open",
    {
      "identifier": "fs:allow-write-text-file",
      "allow": [{ "path": "$HOME/test.txt" }]
    },
  ],
  "platforms": ["macOS","windows"]
}

Object Properties:

description
identifier (required)
local
permissions (required)
platforms
remote
webviews
windows

description

string

Description of what the capability is intended to allow on associated windows.

It should contain a description of what the grouped permissions should allow.

Example

This capability allows the main window access to filesystem write related commands and dialog commands to enable programatic access to files selected by the user.

identifier

string

Identifier of the capability.

Example

main-user-files-write

local

boolean

Whether this capability is enabled for local app URLs or not. Defaults to true.

Default: true

permissions

PermissionEntry[] each item must be unique

List of permissions attached to this capability.

Must include the plugin name as prefix in the form of ${plugin-name}:${permission-name}. For commands directly implemented in the application itself only ${permission-name} is required.

Example

[
  "core:default",
  "shell:allow-open",
  "dialog:open",
  {
    "identifier": "fs:allow-write-text-file",
    "allow": [{ "path": "$HOME/test.txt" }]
  }
]

platforms

Target[] | null

Limit which target platforms this capability applies to.

By default all platforms are targeted.

Example

["macOS","windows"]

remote

CapabilityRemote | null

Configure remote URLs that can use the capability permissions.

This setting is optional and defaults to not being set, as our default use case is that the content is served from our local application.

Example

{
  "urls": ["https://*.mydomain.dev"]
}

webviews

string[]

List of webviews that are affected by this capability. Can be a glob pattern.

This is only required when using on multiwebview contexts, by default all child webviews of a window that matches [Self::windows] are linked.

Example

["sub-webview-one", "sub-webview-two"]

windows

string[]

List of windows that are affected by this capability. Can be a glob pattern.

On multiwebview windows, prefer [Self::webviews] for a fine grained access control.

Example

["main"]

CapabilityEntry

Any of the following:

Capability An inlined capability.
string Reference to a capability identifier.

A capability entry which can be either an inlined capability or a reference to a capability defined on its own file.

CapabilityRemote

Configuration for remote URLs that are associated with the capability.

Object Properties:

urls (required)

urls

string[]

Remote domains this capability refers to using the URLPattern standard.

Examples

“https://*.mydomain.dev”: allows subdomains of mydomain.dev
“https://mydomain.dev/api/*”: allows any subpath of mydomain.dev/api

Color

Any of the following:

string pattern of ^#?([A-Fa-f0-9]{3}|[A-Fa-f0-9]{6}|[A-Fa-f0-9]{8})$ Color hex string, for example: #fff, #ffffff, or #ffffffff.
integer formatted as uint8 | integer formatted as uint8 | integer formatted as uint8[] maximum of 3 items, minimum of 3 items Array of RGB colors. Each value has minimum of 0 and maximum of 255.
integer formatted as uint8 | integer formatted as uint8 | integer formatted as uint8 | integer formatted as uint8[] maximum of 4 items, minimum of 4 items Array of RGBA colors. Each value has minimum of 0 and maximum of 255.
Object of red, green, blue, alpha color values. Each value has minimum of 0 and maximum of 255. Object Properties: - alpha - blue (required) - green (required) - red (required) ##### alpha integer formatted as uint8 Default: 255 ##### blue integer formatted as uint8 ##### green integer formatted as uint8 ##### red integer formatted as uint8

Csp

Any of the following:

string The entire CSP policy in a single text string.
An object mapping a directive with its sources values as a list of strings. Allows additional properties: CspDirectiveSources

A Content-Security-Policy definition. See <https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP>.

CspDirectiveSources

Any of the following:

string An inline list of CSP sources. Same as [Self::List], but concatenated with a space separator.
string[] A list of CSP sources. The collection will be concatenated with a space separator for the CSP string.

A Content-Security-Policy directive source list. See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/Sources#sources>.

CustomSignCommandConfig

Any of the following:

string A string notation of the script to execute. “%1” will be replaced with the path to the binary to be signed. This is a simpler notation for the command. Tauri will split the string with ' ' and use the first element as the command name and the rest as arguments. If you need to use whitespace in the command or arguments, use the object notation [Self::ScriptWithOptions].
An object notation of the command. This is more complex notation for the command but this allows you to use whitespace in the command and arguments. Object Properties: - args (required) - cmd (required) ##### args string[] The arguments to pass to the command. “%1” will be replaced with the path to the binary to be signed. ##### cmd string The command to run to sign the binary.

Custom Signing Command configuration.

DebConfig

Configuration for Debian (.deb) bundles.

See more: <https://v2.tauri.app/reference/config/#debconfig>

Object Properties:

changelog
conflicts
depends
desktopTemplate
files
postInstallScript
postRemoveScript
preInstallScript
preRemoveScript
priority
provides
recommends
replaces
section

changelog

string | null

Path of the uncompressed Changelog file, to be stored at /usr/share/doc/package-name/changelog.gz. See <https://www.debian.org/doc/debian-policy/ch-docs.html#changelog-files-and-release-notes>

conflicts

string[] | null

The list of package conflicts.

depends

string[] | null

The list of deb dependencies your application relies on.

desktopTemplate

string | null

Path to a custom desktop file Handlebars template.

Available variables: categories, comment (optional), exec, icon and name.

files

The files to include on the package.

Allows additional properties: string

Default: {}

postInstallScript

string | null

Path to script that will be executed after the package is unpacked. See <https://www.debian.org/doc/debian-policy/ch-maintainerscripts.html>

postRemoveScript

string | null

Path to script that will be executed after the package is removed. See <https://www.debian.org/doc/debian-policy/ch-maintainerscripts.html>

preInstallScript

string | null

Path to script that will be executed before the package is unpacked. See <https://www.debian.org/doc/debian-policy/ch-maintainerscripts.html>

preRemoveScript

string | null

Path to script that will be executed before the package is removed. See <https://www.debian.org/doc/debian-policy/ch-maintainerscripts.html>

priority

string | null

Change the priority of the Debian Package. By default, it is set to optional. Recognized Priorities as of now are : required, important, standard, optional, extra

provides

string[] | null

The list of dependencies the package provides.

recommends

string[] | null

The list of deb dependencies your application recommends.

replaces

string[] | null

The list of package replaces.

section

string | null

Define the section in Debian Control file. See : https://www.debian.org/doc/debian-policy/ch-archive.html#s-subsections

DisabledCspModificationKind

Any of the following:

boolean If true, disables all CSP modification. false is the default value and it configures Tauri to control the CSP.
string[] Disables the given list of CSP directives modifications.

The possible values for the dangerous_disable_asset_csp_modification config option.

DmgConfig

Configuration for Apple Disk Image (.dmg) bundles.

See more: <https://v2.tauri.app/reference/config/#dmgconfig>

Object Properties:

applicationFolderPosition
appPosition
background
windowPosition
windowSize

applicationFolderPosition

Position

Position of application folder on window.

{
  "x": 480,
  "y": 170
}

appPosition

Position

Position of app file on window.

{
  "x": 180,
  "y": 170
}

background

string | null

Image to use as the background in dmg file. Accepted formats: png/jpg/gif.

windowPosition

Position | null

Position of volume window on screen.

windowSize

Size

Size of volume window.

{
  "height": 400,
  "width": 660
}

FileAssociation

File association

Object Properties:

description
ext (required)
mimeType
name
role

description

string | null

The association description. Windows-only. It is displayed on the Type column on Windows Explorer.

ext

AssociationExt[]

File extensions to associate with this app. e.g. ‘png’

mimeType

string | null

The mime-type e.g. ‘image/png’ or ‘text/plain’. Linux-only.

name

string | null

The name. Maps to CFBundleTypeName on macOS. Default to ext[0]

role

BundleTypeRole

The app’s role with respect to the type. Maps to CFBundleTypeRole on macOS.

Default: "Editor"

FrontendDist

Any of the following:

string formatted as uri An external URL that should be used as the default application URL.
string Path to a directory containing the frontend dist assets.
string[] An array of files to embed on the app.

Defines the URL or assets to embed in the application.

FsScope

Any of the following:

string[] A list of paths that are allowed by this scope.
A complete scope configuration. Object Properties: - allow - deny - requireLiteralLeadingDot ##### allow string[] A list of paths that are allowed by this scope. Default: [] ##### deny string[] A list of paths that are not allowed by this scope. This gets precedence over the [Self::Scope::allow] list. Default: [] ##### requireLiteralLeadingDot boolean | null Whether or not paths that contain components that start with a . will require that . appears literally in the pattern; *, ?, **, or [...] will not match. This is useful because such files are conventionally considered hidden on Unix systems and it might be desirable to skip them when listing files. Defaults to true on Unix systems and false on Windows

Protocol scope definition. It is a list of glob patterns that restrict the API access from the webview.

Each pattern can start with a variable that resolves to a system base directory. The variables are: $AUDIO, $CACHE, $CONFIG, $DATA, $LOCALDATA, $DESKTOP, $DOCUMENT, $DOWNLOAD, $EXE, $FONT, $HOME, $PICTURE, $PUBLIC, $RUNTIME, $TEMPLATE, $VIDEO, $RESOURCE, $APP, $LOG, $TEMP, $APPCONFIG, $APPDATA, $APPLOCALDATA, $APPCACHE, $APPLOG.

HeaderConfig

A struct, where the keys are some specific http header names. If the values to those keys are defined, then they will be send as part of a response message. This does not include error messages and ipc messages

Example configuration

{
 //..
  app:{
    //..
    security: {
      headers: {
        "Cross-Origin-Opener-Policy": "same-origin",
        "Cross-Origin-Embedder-Policy": "require-corp",
        "Timing-Allow-Origin": [
          "https://developer.mozilla.org",
          "https://example.com",
        ],
        "Access-Control-Expose-Headers": "Tauri-Custom-Header",
        "Tauri-Custom-Header": {
          "key1": "'value1' 'value2'",
          "key2": "'value3'"
        }
      },
      csp: "default-src 'self'; connect-src ipc: http://ipc.localhost",
    }
    //..
  }
 //..
}

In this example Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy are set to allow for the use of SharedArrayBuffer. The result is, that those headers are then set on every response sent via the get_response function in crates/tauri/src/protocol/tauri.rs. The Content-Security-Policy header is defined separately, because it is also handled separately.

For the helloworld example, this config translates into those response headers:

access-control-allow-origin:  http://tauri.localhost
access-control-expose-headers: Tauri-Custom-Header
content-security-policy: default-src 'self'; connect-src ipc: http://ipc.localhost; script-src 'self' 'sha256-Wjjrs6qinmnr+tOry8x8PPwI77eGpUFR3EEGZktjJNs='
content-type: text/html
cross-origin-embedder-policy: require-corp
cross-origin-opener-policy: same-origin
tauri-custom-header: key1 'value1' 'value2'; key2 'value3'
timing-allow-origin: https://developer.mozilla.org, https://example.com

Since the resulting header values are always ‘string-like’. So depending on the what data type the HeaderSource is, they need to be converted.

String(JS/Rust): stay the same for the resulting header value
Array(JS)/Vec\<String\>(Rust): Item are joined by ”, ” for the resulting header value
Object(JS)/ Hashmap\<String,String\>(Rust): Items are composed from: key + space + value. Item are then joined by ”; ” for the resulting header value

Object Properties:

Access-Control-Allow-Credentials
Access-Control-Allow-Headers
Access-Control-Allow-Methods
Access-Control-Expose-Headers
Access-Control-Max-Age
Cross-Origin-Embedder-Policy
Cross-Origin-Opener-Policy
Cross-Origin-Resource-Policy
Permissions-Policy
Tauri-Custom-Header
Timing-Allow-Origin
X-Content-Type-Options

Access-Control-Allow-Credentials

HeaderSource | null

The Access-Control-Allow-Credentials response header tells browsers whether the server allows cross-origin HTTP requests to include credentials.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Credentials>

Access-Control-Allow-Headers

HeaderSource | null

The Access-Control-Allow-Headers response header is used in response to a preflight request which includes the Access-Control-Request-Headers to indicate which HTTP headers can be used during the actual request.

This header is required if the request has an Access-Control-Request-Headers header.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Headers>

Access-Control-Allow-Methods

HeaderSource | null

The Access-Control-Allow-Methods response header specifies one or more methods allowed when accessing a resource in response to a preflight request.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Methods>

Access-Control-Expose-Headers

HeaderSource | null

The Access-Control-Expose-Headers response header allows a server to indicate which response headers should be made available to scripts running in the browser, in response to a cross-origin request.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Expose-Headers>

Access-Control-Max-Age

HeaderSource | null

The Access-Control-Max-Age response header indicates how long the results of a preflight request (that is the information contained in the Access-Control-Allow-Methods and Access-Control-Allow-Headers headers) can be cached.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Max-Age>

Cross-Origin-Embedder-Policy

HeaderSource | null

The HTTP Cross-Origin-Embedder-Policy (COEP) response header configures embedding cross-origin resources into the document.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy>

Cross-Origin-Opener-Policy

HeaderSource | null

The HTTP Cross-Origin-Opener-Policy (COOP) response header allows you to ensure a top-level document does not share a browsing context group with cross-origin documents. COOP will process-isolate your document and potential attackers can’t access your global object if they were to open it in a popup, preventing a set of cross-origin attacks dubbed XS-Leaks.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy>

Cross-Origin-Resource-Policy

HeaderSource | null

The HTTP Cross-Origin-Resource-Policy response header conveys a desire that the browser blocks no-cors cross-origin/cross-site requests to the given resource.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Resource-Policy>

Permissions-Policy

HeaderSource | null

The HTTP Permissions-Policy header provides a mechanism to allow and deny the use of browser features in a document or within any <iframe> elements in the document.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Permissions-Policy>

Tauri-Custom-Header

HeaderSource | null

A custom header field Tauri-Custom-Header, don’t use it. Remember to set Access-Control-Expose-Headers accordingly

NOT INTENDED FOR PRODUCTION USE

Timing-Allow-Origin

HeaderSource | null

The Timing-Allow-Origin response header specifies origins that are allowed to see values of attributes retrieved via features of the Resource Timing API, which would otherwise be reported as zero due to cross-origin restrictions.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Timing-Allow-Origin>

X-Content-Type-Options

HeaderSource | null

The X-Content-Type-Options response HTTP header is a marker used by the server to indicate that the MIME types advertised in the Content-Type headers should be followed and not be changed. The header allows you to avoid MIME type sniffing by saying that the MIME types are deliberately configured.

See <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options>

HeaderSource

Any of the following:

string string version of the header Value
string[] list version of the header value. Item are joined by ”,” for the real header value
(Rust struct | Json | JavaScript Object) equivalent of the header value. Items are composed from: key + space + value. Item are then joined by ”;” for the real header value Allows additional properties: string

definition of a header source

The header value to a header name

HookCommand

Any of the following:

string Run the given script with the default options.
Run the given script with custom options. Object Properties: - cwd - script (required) ##### cwd string | null The current working directory. ##### script string The script to execute.

Describes a shell command to be executed when a CLI hook is triggered.

Identifier

string

IosConfig

General configuration for the iOS target.

Object Properties:

developmentTeam
frameworks
minimumSystemVersion
template

developmentTeam

string | null

The development team. This value is required for iOS development because code signing is enforced. The APPLE_DEVELOPMENT_TEAM environment variable can be set to overwrite it.

frameworks

string[] | null

A list of strings indicating any iOS frameworks that need to be bundled with the application.

Note that you need to recreate the iOS project for the changes to be applied.

minimumSystemVersion

string

A version string indicating the minimum iOS version that the bundled application supports. Defaults to 13.0.

Maps to the IPHONEOS_DEPLOYMENT_TARGET value.

Default: "13.0"

template

string | null

A custom XcodeGen project.yml template to use.

LinuxConfig

Configuration for Linux bundles.

See more: <https://v2.tauri.app/reference/config/#linuxconfig>

Object Properties:

appimage
deb
rpm

appimage

AppImageConfig

Configuration for the AppImage bundle.

{
  "bundleMediaFramework": false,
  "files": {}
}

deb

DebConfig

Configuration for the Debian bundle.

{
  "files": {}
}

rpm

RpmConfig

Configuration for the RPM bundle.

{
  "epoch": 0,
  "files": {},
  "release": "1"
}

MacConfig

Configuration for the macOS bundles.

See more: <https://v2.tauri.app/reference/config/#macconfig>

Object Properties:

dmg
entitlements
exceptionDomain
files
frameworks
hardenedRuntime
minimumSystemVersion
providerShortName
signingIdentity

dmg

DmgConfig

DMG-specific settings.

{
  "appPosition": {
    "x": 180,
    "y": 170
  },
  "applicationFolderPosition": {
    "x": 480,
    "y": 170
  },
  "windowSize": {
    "height": 400,
    "width": 660
  }
}

entitlements

string | null

Path to the entitlements file.

exceptionDomain

string | null

Allows your application to communicate with the outside world. It should be a lowercase, without port and protocol domain name.

files

The files to include in the application relative to the Contents directory.

Allows additional properties: string

Default: {}

frameworks

string[] | null

A list of strings indicating any macOS X frameworks that need to be bundled with the application.

If a name is used, “.framework” must be omitted and it will look for standard install locations. You may also use a path to a specific framework.

hardenedRuntime

boolean

Whether the codesign should enable hardened runtime (for executables) or not.

Default: true

minimumSystemVersion

string | null

A version string indicating the minimum macOS X version that the bundled application supports. Defaults to 10.13.

Setting it to null completely removes the LSMinimumSystemVersion field on the bundle’s Info.plist and the MACOSX_DEPLOYMENT_TARGET environment variable.

An empty string is considered an invalid value so the default value is used.

Default: "10.13"

providerShortName

string | null

Provider short name for notarization.

signingIdentity

string | null

Identity to use for code signing.

NsisCompression

One of the following:

"zlib" ZLIB uses the deflate algorithm, it is a quick and simple method. With the default compression level it uses about 300 KB of memory.
"bzip2" BZIP2 usually gives better compression ratios than ZLIB, but it is a bit slower and uses more memory. With the default compression level it uses about 4 MB of memory.
"lzma" LZMA (default) is a new compression method that gives very good compression ratios. The decompression speed is high (10-20 MB/s on a 2 GHz CPU), the compression speed is lower. The memory size that will be used for decompression is the dictionary size plus a few KBs, the default is 8 MB.
"none" Disable compression

Compression algorithms used in the NSIS installer.

See <https://nsis.sourceforge.io/Reference/SetCompressor>

NsisConfig

Configuration for the Installer bundle using NSIS.

Object Properties:

compression
customLanguageFiles
displayLanguageSelector
headerImage
installerHooks
installerIcon
installMode
languages
minimumWebview2Version
sidebarImage
startMenuFolder
template

compression

NsisCompression

Set the compression algorithm used to compress files in the installer.

See <https://nsis.sourceforge.io/Reference/SetCompressor>

Default: "lzma"

customLanguageFiles

| null

A key-value pair where the key is the language and the value is the path to a custom .nsh file that holds the translated text for tauri’s custom messages.

See <https://github.com/tauri-apps/tauri/blob/dev/crates/tauri-bundler/src/bundle/windows/nsis/languages/English.nsh> for an example .nsh file.

Note: the key must be a valid NSIS language and it must be added to [NsisConfig] languages array,

Allows additional properties: string

displayLanguageSelector

boolean

Whether to display a language selector dialog before the installer and uninstaller windows are rendered or not. By default the OS language is selected, with a fallback to the first language in the languages array.

headerImage

string | null

The path to a bitmap file to display on the header of installers pages.

The recommended dimensions are 150px x 57px.

installerHooks

string | null

A path to a .nsh file that contains special NSIS macros to be hooked into the main installer.nsi script.

Supported hooks are:

NSIS_HOOK_PREINSTALL: This hook runs before copying files, setting registry key values and creating shortcuts.
NSIS_HOOK_POSTINSTALL: This hook runs after the installer has finished copying all files, setting the registry keys and created shortcuts.
NSIS_HOOK_PREUNINSTALL: This hook runs before removing any files, registry keys and shortcuts.
NSIS_HOOK_POSTUNINSTALL: This hook runs after files, registry keys and shortcuts have been removed.

Example

!macro NSIS_HOOK_PREINSTALL
  MessageBox MB_OK "PreInstall"
!macroend

!macro NSIS_HOOK_POSTINSTALL
  MessageBox MB_OK "PostInstall"
!macroend

!macro NSIS_HOOK_PREUNINSTALL
  MessageBox MB_OK "PreUnInstall"
!macroend

!macro NSIS_HOOK_POSTUNINSTALL
  MessageBox MB_OK "PostUninstall"
!macroend

installerIcon

string | null

The path to an icon file used as the installer icon.

installMode

NSISInstallerMode

Whether the installation will be for all users or just the current user.

Default: "currentUser"

languages

string[] | null

A list of installer languages. By default the OS language is used. If the OS language is not in the list of languages, the first language will be used. To allow the user to select the language, set display_language_selector to true.

See <https://github.com/kichik/nsis/tree/9465c08046f00ccb6eda985abbdbf52c275c6c4d/Contrib/Language%20files> for the complete list of languages.

minimumWebview2Version

string | null

Try to ensure that the WebView2 version is equal to or newer than this version, if the user’s WebView2 is older than this version, the installer will try to trigger a WebView2 update.

sidebarImage

string | null

The path to a bitmap file for the Welcome page and the Finish page.

The recommended dimensions are 164px x 314px.

startMenuFolder

string | null

Set the folder name for the start menu shortcut.

Use this option if you have multiple apps and wish to group their shortcuts under one folder or if you generally prefer to set your shortcut inside a folder.

Examples:

AwesomePublisher, shortcut will be placed in %AppData%\Microsoft\Windows\Start Menu\Programs\AwesomePublisher\<your-app>.lnk
If unset, shortcut will be placed in %AppData%\Microsoft\Windows\Start Menu\Programs\<your-app>.lnk

template

string | null

A custom .nsi template to use.

NSISInstallerMode

One of the following:

"currentUser" Default mode for the installer. Install the app by default in a directory that doesn’t require Administrator access. Installer metadata will be saved under the HKCU registry path.
"perMachine" Install the app by default in the Program Files folder directory requires Administrator access for the installation. Installer metadata will be saved under the HKLM registry path.
"both" Combines both modes and allows the user to choose at install time whether to install for the current user or per machine. Note that this mode will require Administrator access even if the user wants to install it for the current user only. Installer metadata will be saved under the HKLM or HKCU registry path based on the user’s choice.

Install Modes for the NSIS installer.

Number

Any of the following:

integer formatted as int64 Represents an [i64].
number formatted as double Represents a [f64].

A valid ACL number.

PatternKind

One of the following:

Brownfield pattern. Object Properties: - use (required) ##### use "brownfield"
Isolation pattern. Recommended for security purposes. Object Properties: - options (required) - use (required) ##### options Object Properties: - dir (required) ###### dir string The dir containing the index.html file that contains the secure isolation application. ##### use "isolation"

The application pattern.

PermissionEntry

Any of the following:

Identifier Reference a permission or permission set by identifier.
Reference a permission or permission set by identifier and extends its scope. Object Properties: - allow - deny - identifier (required) ##### allow Value[] | null Data that defines what is allowed by the scope. ##### deny Value[] | null Data that defines what is denied by the scope. This should be prioritized by validation logic. ##### identifier Identifier Identifier of the permission or permission set.

An entry for a permission value in a [Capability] can be either a raw permission [Identifier] or an object that references a permission and extends its scope.

PluginConfig

The plugin configs holds a HashMap mapping a plugin name to its configuration object.

See more: <https://v2.tauri.app/reference/config/#pluginconfig>

Allows additional properties: true

Position

Position coordinates struct.

Object Properties:

x (required)
y (required)

x

integer formatted as uint32

X coordinate.

y

integer formatted as uint32

Y coordinate.

RpmCompression

One of the following:

Gzip compression Object Properties: - level (required) - type (required) ##### level integer formatted as uint32 Gzip compression level ##### type "gzip"
Zstd compression Object Properties: - level (required) - type (required) ##### level integer formatted as int32 Zstd compression level ##### type "zstd"
Xz compression Object Properties: - level (required) - type (required) ##### level integer formatted as uint32 Xz compression level ##### type "xz"
Bzip2 compression Object Properties: - level (required) - type (required) ##### level integer formatted as uint32 Bzip2 compression level ##### type "bzip2"
Disable compression Object Properties: - type (required) ##### type "none"

Compression algorithms used when bundling RPM packages.

RpmConfig

Configuration for RPM bundles.

Object Properties:

compression
conflicts
depends
desktopTemplate
epoch
files
obsoletes
postInstallScript
postRemoveScript
preInstallScript
preRemoveScript
provides
recommends
release

compression

RpmCompression | null

Compression algorithm and level. Defaults to Gzip with level 6.

conflicts

string[] | null

The list of RPM dependencies your application conflicts with. They must not be present in order for the package to be installed.

depends

string[] | null

The list of RPM dependencies your application relies on.

desktopTemplate

string | null

Path to a custom desktop file Handlebars template.

Available variables: categories, comment (optional), exec, icon and name.

epoch

integer formatted as uint32

The RPM epoch.

files

The files to include on the package.

Allows additional properties: string

Default: {}

obsoletes

string[] | null

The list of RPM dependencies your application supersedes - if this package is installed, packages listed as “obsoletes” will be automatically removed (if they are present).

postInstallScript

string | null

Path to script that will be executed after the package is unpacked. See <http://ftp.rpm.org/max-rpm/s1-rpm-inside-scripts.html>

postRemoveScript

string | null

Path to script that will be executed after the package is removed. See <http://ftp.rpm.org/max-rpm/s1-rpm-inside-scripts.html>

preInstallScript

string | null

Path to script that will be executed before the package is unpacked. See <http://ftp.rpm.org/max-rpm/s1-rpm-inside-scripts.html>

preRemoveScript

string | null

Path to script that will be executed before the package is removed. See <http://ftp.rpm.org/max-rpm/s1-rpm-inside-scripts.html>

provides

string[] | null

The list of RPM dependencies your application provides.

recommends

string[] | null

The list of RPM dependencies your application recommends.

release

string

The RPM release tag.

Default: "1"

SecurityConfig

Security configuration.

See more: <https://v2.tauri.app/reference/config/#securityconfig>

Object Properties:

assetProtocol
capabilities
csp
dangerousDisableAssetCspModification
devCsp
freezePrototype
headers
pattern

assetProtocol

AssetProtocolConfig

Custom protocol config.

{
  "enable": false,
  "scope": []
}

capabilities

CapabilityEntry[]

List of capabilities that are enabled on the application.

If the list is empty, all capabilities are included.

Default: []

csp

Csp | null

The Content Security Policy that will be injected on all HTML files on the built application. If dev_csp is not specified, this value is also injected on dev.

This is a really important part of the configuration since it helps you ensure your WebView is secured. See <https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP>.

dangerousDisableAssetCspModification

DisabledCspModificationKind

Disables the Tauri-injected CSP sources.

At compile time, Tauri parses all the frontend assets and changes the Content-Security-Policy to only allow loading of your own scripts and styles by injecting nonce and hash sources. This stricts your CSP, which may introduce issues when using along with other flexing sources.

This configuration option allows both a boolean and a list of strings as value. A boolean instructs Tauri to disable the injection for all CSP injections, and a list of strings indicates the CSP directives that Tauri cannot inject.

WARNING: Only disable this if you know what you are doing and have properly configured the CSP. Your application might be vulnerable to XSS attacks without this Tauri protection.

devCsp

Csp | null

The Content Security Policy that will be injected on all HTML files on development.

This is a really important part of the configuration since it helps you ensure your WebView is secured. See <https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP>.

freezePrototype

boolean

Freeze the Object.prototype when using the custom protocol.

headers

HeaderConfig | null

The headers, which are added to every http response from tauri to the web view This doesn’t include IPC Messages and error responses

pattern

PatternKind

The pattern to use.

{
  "use": "brownfield"
}

Size

Size of the window.

Object Properties:

height (required)
width (required)

height

integer formatted as uint32

Height of the window.

width

integer formatted as uint32

Width of the window.

Target

One of the following:

"macOS" MacOS.
"windows" Windows.
"linux" Linux.
"android" Android.
"iOS" iOS.

Platform target.

Theme

One of the following:

"Light" Light theme.
"Dark" Dark theme.

System theme.

TitleBarStyle

One of the following:

"Visible" A normal title bar.
"Transparent" Makes the title bar transparent, so the window background color is shown instead. Useful if you don’t need to have actual HTML under the title bar. This lets you avoid the caveats of using TitleBarStyle::Overlay. Will be more useful when Tauri lets you set a custom window background color.
"Overlay" Shows the title bar as a transparent overlay over the window’s content. Keep in mind: - The height of the title bar is different on different OS versions, which can lead to window the controls and title not being where you don’t expect. - You need to define a custom drag region to make your window draggable, however due to a limitation you can’t drag the window when it’s not in focus <https://github.com/tauri-apps/tauri/issues/4316>. - The color of the window title depends on the system theme.

How the window title bar should be displayed on macOS.

TrayIconConfig

Configuration for application tray icon.

See more: <https://v2.tauri.app/reference/config/#trayiconconfig>

Object Properties:

iconAsTemplate
iconPath (required)
id
menuOnLeftClick
title
tooltip

iconAsTemplate

boolean

A Boolean value that determines whether the image represents a template image on macOS.

iconPath

string

Path to the default icon to use for the tray icon.

Note: this stores the image in raw pixels to the final binary, so keep the icon size (width and height) small or else it’s going to bloat your final executable

id

string | null

Set an id for this tray icon so you can reference it later, defaults to main.

menuOnLeftClick

boolean

A Boolean value that determines whether the menu should appear when the tray icon receives a left click on macOS.

Default: true

title

string | null

Title for MacOS tray

string | null

Tray icon tooltip on Windows and macOS

Updater

Any of the following:

V1Compatible Generates lagacy zipped v1 compatible updaters
boolean Produce updaters and their signatures or not

Updater type

V1Compatible

"v1Compatible",Generates lagacy zipped v1 compatible updaters

Generates lagacy zipped v1 compatible updaters

Value

Any of the following:

null Represents a null JSON value.
boolean Represents a [bool].
Number Represents a valid ACL [Number].
string Represents a [String].
Value[] Represents a list of other [Value]s.
Represents a map of [String] keys to [Value]s. Allows additional properties: Value

All supported ACL values.

WebviewInstallMode

One of the following:

Do not install the Webview2 as part of the Windows Installer. Object Properties: - type (required) ##### type "skip"
Download the bootstrapper and run it. Requires an internet connection. Results in a smaller installer size, but is not recommended on Windows 7. Object Properties: - silent - type (required) ##### silent boolean Instructs the installer to run the bootstrapper in silent mode. Defaults to true. Default: true ##### type "downloadBootstrapper"
Embed the bootstrapper and run it. Requires an internet connection. Increases the installer size by around 1.8MB, but offers better support on Windows 7. Object Properties: - silent - type (required) ##### silent boolean Instructs the installer to run the bootstrapper in silent mode. Defaults to true. Default: true ##### type "embedBootstrapper"
Embed the offline installer and run it. Does not require an internet connection. Increases the installer size by around 127MB. Object Properties: - silent - type (required) ##### silent boolean Instructs the installer to run the installer in silent mode. Defaults to true. Default: true ##### type "offlineInstaller"
Embed a fixed webview2 version and use it at runtime. Increases the installer size by around 180MB. Object Properties: - path (required) - type (required) ##### path string The path to the fixed runtime to use. The fixed version can be downloaded on the official website. The .cab file must be extracted to a folder and this folder path must be defined on this field. ##### type "fixedRuntime"

Install modes for the Webview2 runtime. Note that for the updater bundle [Self::DownloadBootstrapper] is used.

For more information see <https://v2.tauri.app/distribute/windows-installer/#webview2-installation-options>.

WebviewUrl

Any of the following:

string formatted as uri An external URL. Must use either the http or https schemes.
string The path portion of an app URL. For instance, to load tauri://localhost/users/john, you can simply provide users/john in this configuration.
string formatted as uri A custom protocol url, for example, doom://index.html

An URL to open on a Tauri webview window.

WindowConfig

The window configuration object.

See more: <https://v2.tauri.app/reference/config/#windowconfig>

Object Properties:

acceptFirstMouse
additionalBrowserArgs
alwaysOnBottom
alwaysOnTop
backgroundColor
browserExtensionsEnabled
center
closable
contentProtected
create
decorations
devtools
dragDropEnabled
focus
fullscreen
height
hiddenTitle
incognito
label
maxHeight
maximizable
maximized
maxWidth
minHeight
minimizable
minWidth
parent
proxyUrl
resizable
shadow
skipTaskbar
tabbingIdentifier
theme
title
titleBarStyle
transparent
url
useHttpsScheme
userAgent
visible
visibleOnAllWorkspaces
width
windowClassname
windowEffects
x
y
zoomHotkeysEnabled

acceptFirstMouse

boolean

Whether clicking an inactive window also clicks through to the webview on macOS.

additionalBrowserArgs

string | null

Defines additional browser arguments on Windows. By default wry passes --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection so if you use this method, you also need to disable these components by yourself if you want.

alwaysOnBottom

boolean

Whether the window should always be below other windows.

alwaysOnTop

boolean

Whether the window should always be on top of other windows.

backgroundColor

Color | null

Set the window and webview background color.

Platform-specific:

Windows: alpha channel is ignored for the window layer.
Windows: On Windows 7, alpha channel is ignored for the webview layer.
Windows: On Windows 8 and newer, if alpha channel is not 0, it will be ignored for the webview layer.

browserExtensionsEnabled

boolean

Whether browser extensions can be installed for the webview process

Platform-specific:

Windows: Enables the WebView2 environment’s AreBrowserExtensionsEnabled
MacOS / Linux / iOS / Android - Unsupported.

center

boolean

Whether or not the window starts centered or not.

closable

boolean

Whether the window’s native close button is enabled or not.

Platform-specific

Linux: “GTK+ will do its best to convince the window manager not to show a close button. Depending on the system, this function may not have any effect when called on a window that is already visible”
iOS / Android: Unsupported.

Default: true

contentProtected

boolean

Prevents the window contents from being captured by other apps.

create

boolean

Whether Tauri should create this window at app startup or not.

When this is set to false you must manually grab the config object via app.config().app.windows and create it with WebviewWindowBuilder::from_config.

Default: true

decorations

boolean

Whether the window should have borders and bars.

Default: true

devtools

boolean | null

Enable web inspector which is usually called browser devtools. Enabled by default.

This API works in debug builds, but requires devtools feature flag to enable it in release builds.

Platform-specific

macOS: This will call private functions on macOS.
Android: Open chrome://inspect/#devices in Chrome to get the devtools window. Wry’s WebView devtools API isn’t supported on Android.
iOS: Open Safari > Develop > [Your Device Name] > [Your WebView] to get the devtools window.

dragDropEnabled

boolean

Whether the drag and drop is enabled or not on the webview. By default it is enabled.

Disabling it is required to use HTML5 drag and drop on the frontend on Windows.

Default: true

focus

boolean

Whether the window will be initially focused or not.

Default: true

fullscreen

boolean

Whether the window starts as fullscreen or not.

height

number formatted as double

The window height.

Default: 600

hiddenTitle

boolean

If true, sets the window title to be hidden on macOS.

incognito

boolean

Whether or not the webview should be launched in incognito mode.

Platform-specific:

Android: Unsupported.

label

string

The window identifier. It must be alphanumeric.

Default: "main"

maxHeight

number | null formatted as double

The max window height.

maximizable

boolean

Whether the window’s native maximize button is enabled or not. If resizable is set to false, this setting is ignored.

Platform-specific

macOS: Disables the “zoom” button in the window titlebar, which is also used to enter fullscreen mode.
Linux / iOS / Android: Unsupported.

Default: true

maximized

boolean

Whether the window is maximized or not.

maxWidth

number | null formatted as double

The max window width.

minHeight

number | null formatted as double

The min window height.

minimizable

boolean

Whether the window’s native minimize button is enabled or not.

Platform-specific

Linux / iOS / Android: Unsupported.

Default: true

minWidth

number | null formatted as double

The min window width.

parent

string | null

Sets the window associated with this label to be the parent of the window to be created.

Platform-specific

Windows: This sets the passed parent as an owner window to the window to be created. From MSDN owned windows docs:
- An owned window is always above its owner in the z-order.
- The system automatically destroys an owned window when its owner is destroyed.
- An owned window is hidden when its owner is minimized.
Linux: This makes the new window transient for parent, see <https://docs.gtk.org/gtk3/method.Window.set_transient_for.html>
macOS: This adds the window as a child of parent, see <https://developer.apple.com/documentation/appkit/nswindow/1419152-addchildwindow?language=objc>

proxyUrl

string | null formatted as uri

The proxy URL for the WebView for all network requests.

Must be either a http:// or a socks5:// URL.

Platform-specific

macOS: Requires the macos-proxy feature flag and only compiles for macOS 14+.

resizable

boolean

Whether the window is resizable or not. When resizable is set to false, native window’s maximize button is automatically disabled.

Default: true

shadow

boolean

Whether or not the window has shadow.

Platform-specific

Windows:
- false has no effect on decorated window, shadow are always ON.
- true will make undecorated window have a 1px white border, and on Windows 11, it will have a rounded corners.
Linux: Unsupported.

Default: true

skipTaskbar

boolean

If true, hides the window icon from the taskbar on Windows and Linux.

tabbingIdentifier

string | null

Defines the window tabbing identifier for macOS.

Windows with matching tabbing identifiers will be grouped together. If the tabbing identifier is not set, automatic tabbing will be disabled.

theme

Theme | null

The initial window theme. Defaults to the system theme. Only implemented on Windows and macOS 10.14+.

title

string

The window title.

Default: "Tauri App"

titleBarStyle

TitleBarStyle

The style of the macOS title bar.

Default: "Visible"

transparent

boolean

Whether the window is transparent or not.

Note that on macOS this requires the macos-private-api feature flag, enabled under tauri > macOSPrivateApi. WARNING: Using private APIs on macOS prevents your application from being accepted to the App Store.

url

WebviewUrl

The window webview URL.

Default: "index.html"

useHttpsScheme

boolean

Sets whether the custom protocols should use https://<scheme>.localhost instead of the default http://<scheme>.localhost on Windows and Android. Defaults to false.

Note

Using a https scheme will NOT allow mixed content when trying to fetch http endpoints and therefore will not match the behavior of the <scheme>://localhost protocols used on macOS and Linux.

Warning

Changing this value between releases will change the IndexedDB, cookies and localstorage location and your app will not be able to access the old data.

userAgent

string | null

The user agent for the webview

visible

boolean

Whether the window is visible or not.

Default: true

visibleOnAllWorkspaces

boolean

Whether the window should be visible on all workspaces or virtual desktops.

Platform-specific

Windows / iOS / Android: Unsupported.

width

number formatted as double

The window width.

Default: 800

windowClassname

string | null

The name of the window class created on Windows to create the window. Windows only.

windowEffects

WindowEffectsConfig | null

Window effects.

Requires the window to be transparent.

Platform-specific:

Windows: If using decorations or shadows, you may want to try this workaround <https://github.com/tauri-apps/tao/issues/72#issuecomment-975607891>
Linux: Unsupported

x

number | null formatted as double

The horizontal position of the window’s top left corner

y

number | null formatted as double

The vertical position of the window’s top left corner

zoomHotkeysEnabled

boolean

Whether page zooming by hotkeys is enabled

Platform-specific:

Windows: Controls WebView2’s IsZoomControlEnabled setting.
MacOS / Linux: Injects a polyfill that zooms in and out with ctrl/command + -/=, 20% in each step, ranging from 20% to 1000%. Requires webview:allow-set-webview-zoom permission
Android / iOS: Unsupported.

WindowEffect

One of the following:

"appearanceBased" A default material appropriate for the view’s effectiveAppearance. macOS 10.14-
"light" macOS 10.14-
"dark" macOS 10.14-
"mediumLight" macOS 10.14-
"ultraDark" macOS 10.14-
"titlebar" macOS 10.10+
"selection" macOS 10.10+
"menu" macOS 10.11+
"popover" macOS 10.11+
"sidebar" macOS 10.11+
"headerView" macOS 10.14+
"sheet" macOS 10.14+
"windowBackground" macOS 10.14+
"hudWindow" macOS 10.14+
"fullScreenUI" macOS 10.14+
"tooltip" macOS 10.14+
"contentBackground" macOS 10.14+
"underWindowBackground" macOS 10.14+
"underPageBackground" macOS 10.14+
"mica" Mica effect that matches the system dark perefence Windows 11 Only
"micaDark" Mica effect with dark mode but only if dark mode is enabled on the system Windows 11 Only
"micaLight" Mica effect with light mode Windows 11 Only
"tabbed" Tabbed effect that matches the system dark perefence Windows 11 Only
"tabbedDark" Tabbed effect with dark mode but only if dark mode is enabled on the system Windows 11 Only
"tabbedLight" Tabbed effect with light mode Windows 11 Only
"blur" Windows 7/10/11(22H1) Only ##### Notes This effect has bad performance when resizing/dragging the window on Windows 11 build 22621.
"acrylic" Windows 10/11 Only ##### Notes This effect has bad performance when resizing/dragging the window on Windows 10 v1903+ and Windows 11 build 22000.

Platform-specific window effects

WindowEffectsConfig

The window effects configuration object

Object Properties:

color
effects (required)
radius
state

color

Color | null

Window effect color. Affects [WindowEffect::Blur] and [WindowEffect::Acrylic] only on Windows 10 v1903+. Doesn’t have any effect on Windows 7 or Windows 11.

effects

WindowEffect[]

List of Window effects to apply to the Window. Conflicting effects will apply the first one and ignore the rest.

radius

number | null formatted as double

Window effect corner radius macOS Only

state

WindowEffectState | null

Window effect state macOS Only

WindowEffectState

One of the following:

"followsWindowActiveState" Make window effect state follow the window’s active state
"active" Make window effect state always active
"inactive" Make window effect state always inactive

Window effect state macOS only

<https://developer.apple.com/documentation/appkit/nsvisualeffectview/state>

WindowsConfig

Windows bundler configuration.

See more: <https://v2.tauri.app/reference/config/#windowsconfig>

Object Properties:

allowDowngrades
certificateThumbprint
digestAlgorithm
nsis
signCommand
timestampUrl
tsp
webviewInstallMode
wix

allowDowngrades

boolean

Validates a second app installation, blocking the user from installing an older version if set to false.

For instance, if 1.2.1 is installed, the user won’t be able to install app version 1.2.0 or 1.1.5.

The default value of this flag is true.

Default: true

certificateThumbprint

string | null

Specifies the SHA1 hash of the signing certificate.

digestAlgorithm

string | null

Specifies the file digest algorithm to use for creating file signatures. Required for code signing. SHA-256 is recommended.

nsis

NsisConfig | null

Configuration for the installer generated with NSIS.

signCommand

CustomSignCommandConfig | null

Specify a custom command to sign the binaries. This command needs to have a %1 in args which is just a placeholder for the binary path, which we will detect and replace before calling the command.

By Default we use signtool.exe which can be found only on Windows so if you are on another platform and want to cross-compile and sign you will need to use another tool like osslsigncode.

timestampUrl

string | null

Server to use during timestamping.

tsp

boolean

Whether to use Time-Stamp Protocol (TSP, a.k.a. RFC 3161) for the timestamp server. Your code signing provider may use a TSP timestamp server, like e.g. SSL.com does. If so, enable TSP by setting to true.

webviewInstallMode

WebviewInstallMode

The installation mode for the Webview2 runtime.

{
  "silent": true,
  "type": "downloadBootstrapper"
}

wix

WixConfig | null

Configuration for the MSI generated with WiX.

WixConfig

Configuration for the MSI bundle using WiX.

See more: <https://v2.tauri.app/reference/config/#wixconfig>

Object Properties:

bannerPath
componentGroupRefs
componentRefs
dialogImagePath
enableElevatedUpdateTask
featureGroupRefs
featureRefs
fragmentPaths
language
mergeRefs
template
upgradeCode
version

bannerPath

string | null

Path to a bitmap file to use as the installation user interface banner. This bitmap will appear at the top of all but the first page of the installer.

The required dimensions are 493px × 58px.

componentGroupRefs

string[]

The ComponentGroup element ids you want to reference from the fragments.

Default: []

componentRefs

string[]

The Component element ids you want to reference from the fragments.

Default: []

dialogImagePath

string | null

Path to a bitmap file to use on the installation user interface dialogs. It is used on the welcome and completion dialogs. The required dimensions are 493px × 312px.

enableElevatedUpdateTask

boolean

Create an elevated update task within Windows Task Scheduler.

featureGroupRefs

string[]

The FeatureGroup element ids you want to reference from the fragments.

Default: []

featureRefs

string[]

The Feature element ids you want to reference from the fragments.

Default: []

fragmentPaths

string[]

A list of paths to .wxs files with WiX fragments to use.

Default: []

language

WixLanguage

The installer languages to build. See <https://docs.microsoft.com/en-us/windows/win32/msi/localizing-the-error-and-actiontext-tables>.

Default: "en-US"

mergeRefs

string[]

The Merge element ids you want to reference from the fragments.

Default: []

template

string | null

A custom .wxs template to use.

upgradeCode

string | null formatted as uuid

A GUID upgrade code for MSI installer. This code must stay the same across all of your updates, otherwise, Windows will treat your update as a different app and your users will have duplicate versions of your app.

By default, tauri generates this code by generating a Uuid v5 using the string <productName>.exe.app.x64 in the DNS namespace. You can use Tauri’s CLI to generate and print this code for you, run tauri inspect wix-upgrade-code.

It is recommended that you set this value in your tauri config file to avoid accidental changes in your upgrade code whenever you want to change your product name.

version

string | null

MSI installer version in the format major.minor.patch.build (build is optional).

Because a valid version is required for MSI installer, it will be derived from [Config::version] if this field is not set.

The first field is the major version and has a maximum value of 255. The second field is the minor version and has a maximum value of 255. The third and foruth fields have a maximum value of 65,535.

See <https://learn.microsoft.com/en-us/windows/win32/msi/productversion> for more info.

WixLanguage

Any of the following:

string A single language to build, without configuration.
string[] A list of languages to build, without configuration.
A map of languages and its configuration. Allows additional properties: WixLanguageConfig

The languages to build using WiX.

WixLanguageConfig

Configuration for a target language for the WiX build.

See more: <https://v2.tauri.app/reference/config/#wixlanguageconfig>

Object Properties:

localePath

localePath

string | null

The path to a locale (.wxl) file. See <https://wixtoolset.org/documentation/manual/v3/howtos/ui_and_localization/build_a_localized_version.html>.