Key	Type	Required	Description
`$schema`	`string`	No	Path to JSON schema for IDE validation
`identifier`	`string`	Yes	Reverse domain notation (e.g., `com.example.myapp`)
`productName`	`string \| null`	No	Display name of the application
`version`	`string \| null`	No	Semver version or path to `package.json`
`mainBinaryName`	`string \| null`	No	Override the compiled binary filename
`build`	`object`	No	Build configuration
`app`	`object`	No	Application runtime configuration
`bundle`	`object`	No	Bundling and distribution configuration
`plugins`	`object`	No	Per-plugin configuration (default: `{}`)

Schema Reference

ALWAYS include the $schema key for IDE autocompletion and validation:

{
    "$schema": "./gen/schemas/desktop-schema.json"
}

Available schemas (auto-generated in src-tauri/gen/schemas/):

desktop-schema.json -- desktop platform configuration
mobile-schema.json -- mobile platform configuration
remote-schema.json -- remote URL capabilities

Critical Warnings

NEVER omit the identifier field -- it is the ONLY required field. It MUST be unique reverse-domain notation (com.example.myapp). Using a non-unique identifier causes conflicts with other apps on the system.

NEVER use build.devUrl without build.beforeDevCommand -- the dev server will not start automatically, causing Tauri to connect to nothing.

NEVER omit build.beforeBuildCommand -- frontend assets will not be compiled before bundling, producing an app with missing or stale UI.

NEVER set app.security.csp to null in production -- this disables all Content Security Policy restrictions, leaving the app vulnerable to XSS attacks.

NEVER set app.security.dangerousDisableAssetCspModification to true unless you fully understand CSP nonce injection.

NEVER edit files in gen/schemas/ -- they are auto-generated and will be overwritten on the next build.

Build Section

The build section controls how the frontend is compiled and served during development and production.

Property	Type	Default	Description
`devUrl`	`string \| null`	`null`	Dev server URL (e.g., `http://localhost:5173`)
`frontendDist`	`string \| array`	--	Path to compiled frontend assets (e.g., `../dist`)
`beforeDevCommand`	`string \| object`	--	Shell command before `tauri dev`
`beforeBuildCommand`	`string \| object`	--	Shell command before `tauri build`
`beforeBundleCommand`	`string \| object`	--	Shell command before the bundling phase
`features`	`string[] \| null`	`null`	Cargo feature flags to enable
`additionalWatchFolders`	`string[]`	`[]`	Extra paths to watch during `tauri dev`
`removeUnusedCommands`	`boolean`	`false`	Remove unused commands during build based on ACL config

Command Object Form

beforeDevCommand, beforeBuildCommand, and beforeBundleCommand support an object form:

{
    "beforeDevCommand": {
        "script": "npm run dev",
        "cwd": "../frontend",
        "wait": false
    }
}

Property	Type	Description
`script`	`string`	The shell command to run
`cwd`	`string`	Working directory (relative to project root)
`wait`	`boolean`	Wait for the command to finish before continuing

Build Rules

ALWAYS pair devUrl with beforeDevCommand -- the dev server must be running before Tauri connects
ALWAYS set frontendDist to the output directory of your frontend build tool
ALWAYS set beforeBuildCommand to compile frontend assets for production
frontendDist is relative to src-tauri/, so ../dist points to project-root/dist

App Section

The app section configures runtime behavior including windows, security, and platform-specific features.

Property	Type	Default	Description
`windows`	`WindowConfig[]`	`[]`	Windows created at startup
`security`	`object`	--	Security settings
`trayIcon`	`TrayIconConfig \| null`	`null`	System tray icon configuration
`withGlobalTauri`	`boolean`	`false`	Inject Tauri API on `window.__TAURI__`
`enableGTKAppId`	`boolean`	`false`	Set identifier as GTK app ID (Linux)
`macOSPrivateApi`	`boolean`	`false`	Enable transparent background + fullscreen (macOS)

Window Configuration (`app.windows[]`)

Property	Type	Default	Description
`label`	`string`	`"main"`	Unique window identifier
`title`	`string`	--	Window title bar text
`url`	`string`	`"/"`	URL or path to load
`width`	`number`	--	Width in logical pixels
`height`	`number`	--	Height in logical pixels
`x` / `y`	`number`	--	Window position
`minWidth` / `minHeight`	`number`	--	Minimum dimensions
`maxWidth` / `maxHeight`	`number`	--	Maximum dimensions
`resizable`	`boolean`	`true`	Allow resizing
`fullscreen`	`boolean`	`false`	Start fullscreen
`focus`	`boolean`	`true`	Focus on creation
`create`	`boolean`	`true`	Create at startup
`transparent`	`boolean`	`false`	Enable window transparency
`decorations`	`boolean`	`true`	Show title bar / borders
`alwaysOnTop`	`boolean`	`false`	Stay above other windows

Window Rules

ALWAYS set a unique label for each window -- labels are used for IPC targeting and window lookup
Set create: false for windows you want to create programmatically from Rust
The url property accepts relative paths (/settings.html) or custom protocol URLs
Use minWidth/minHeight to prevent the window from being resized too small

Security Section (`app.security`)

Property	Type	Default	Description
`csp`	`string \| object \| null`	`null`	Content Security Policy
`capabilities`	`string[]`	`[]`	Explicit capability file paths (overrides auto-discovery)
`freezePrototype`	`boolean`	`false`	Freeze JavaScript Object.prototype
`dangerousDisableAssetCspModification`	`boolean \| string[]`	`false`	Disable automatic CSP nonce injection
`assetProtocol.enable`	`boolean`	`false`	Enable the asset:// protocol
`assetProtocol.scope`	`string[]`	`[]`	Allowed paths for asset://
`pattern.use`	`string`	`"brownfield"`	Application pattern (`"brownfield"` or `"isolation"`)

Security Rules

ALWAYS enable freezePrototype in production -- it prevents prototype pollution attacks
ALWAYS define a restrictive CSP in production -- never leave it as null
Use the isolation pattern for maximum security (adds an isolation layer between frontend and IPC)
When specifying capabilities explicitly, auto-discovery of src-tauri/capabilities/ is disabled

Bundle Section

The bundle section controls application packaging and distribution.

Property	Type	Default	Description
`active`	`boolean`	`true`	Enable/disable bundling
`targets`	`string \| string[]`	`"all"`	Target platforms/formats
`icon`	`string[]`	--	Icon file paths (all required sizes)
`resources`	`object`	`{}`	Additional files/directories to bundle
`externalBin`	`string[]`	`[]`	External binaries to embed as sidecars
`fileAssociations`	`array`	`[]`	File type associations
`category`	`string`	--	App category (e.g., `"Utility"`)
`copyright`	`string`	--	Copyright notice
`publisher`	`string`	--	Publisher name
`license`	`string`	--	SPDX license identifier
`licenseFile`	`string`	--	Path to license file
`createUpdaterArtifacts`	`boolean \| "v1Compatible"`	`false`	Generate update signatures

Required Icon Sizes

ALWAYS include all required icon formats:

{
    "icon": [
        "icons/32x32.png",
        "icons/128x128.png",
        "icons/128x128@2x.png",
        "icons/icon.icns",
        "icons/icon.ico"
    ]
}

Use tauri icon CLI command to generate all sizes from a single source image.

Platform-Specific Bundle Configuration

Windows (`bundle.windows`)

Property	Type	Description
`nsis`	`object`	NSIS installer configuration
`wix`	`object`	WiX (MSI) configuration
`webviewInstallMode`	`string`	`"downloadBootstrapper"` or `"offlineInstallerFromUrl"`
`signCommand`	`string`	Custom signing command (`%1` = file path)
`certificateThumbprint`	`string \| null`	Certificate thumbprint for Authenticode
`digestAlgorithm`	`string`	Hash algorithm (typically `"sha256"`)
`timestampUrl`	`string`	Timestamp server URL
`allowDowngrades`	`boolean`	Permit version downgrades

macOS (`bundle.macOS`)

Property	Type	Description
`dmg`	`object`	DMG configuration (window size, positions)
`hardenedRuntime`	`boolean`	Enable hardened runtime (default: `true`)
`minimumSystemVersion`	`string`	Minimum macOS version (default: `"10.13"`)
`signingIdentity`	`string \| null`	Code signing identity

Linux (`bundle.linux`)

Property	Type	Description
`deb`	`object`	Debian package config
`rpm`	`object`	RPM package config
`appimage`	`object`	AppImage config
`appimage.bundleMediaFramework`	`boolean`	Bundle media framework (default: `false`)

iOS (`bundle.iOS`)

Property	Type	Description
`minimumSystemVersion`	`string`	Default: `"14.0"`

Android (`bundle.android`)

Property	Type	Description
`minSdkVersion`	`number`	Default: `24`
`versionCode`	`number`	Auto-calculated from semver
`autoIncrementVersionCode`	`boolean`	Increment on each build

Updater Rules

ALWAYS set TAURI_SIGNING_PRIVATE_KEY environment variable before enabling createUpdaterArtifacts
Use true for new projects, "v1Compatible" ONLY when migrating from Tauri v1 updater
NEVER lose the updater private key -- it makes pushing updates to existing installations impossible

Plugins Section

The plugins section provides per-plugin configuration as key-value pairs:

{
    "plugins": {
        "fs": {
            "scope": {
                "allow": ["$APPDATA/**", "$HOME/Documents/**"],
                "deny": ["$HOME/.ssh/**"]
            }
        },
        "http": {
            "scope": {
                "allow": ["https://api.example.com/*"]
            }
        }
    }
}

Plugin configuration keys match the plugin name without the tauri-plugin- prefix.

Minimal Viable Config

The absolute minimum tauri.conf.json that works:

{
    "identifier": "com.example.myapp",
    "build": {
        "devUrl": "http://localhost:5173",
        "frontendDist": "../dist",
        "beforeDevCommand": "npm run dev",
        "beforeBuildCommand": "npm run build"
    },
    "app": {
        "windows": [
            {
                "title": "My App",
                "width": 800,
                "height": 600
            }
        ]
    },
    "bundle": {
        "active": true,
        "icon": [
            "icons/32x32.png",
            "icons/128x128.png",
            "icons/128x128@2x.png",
            "icons/icon.icns",
            "icons/icon.ico"
        ]
    }
}

Reference Links

references/methods.md -- Complete tauri.conf.json schema reference with all properties
references/examples.md -- Config examples: minimal, full, platform-specific
references/anti-patterns.md -- Common config mistakes and how to avoid them

tauri-core-config

tauri-core-config

Quick Reference

Configuration File Location

Top-Level Keys