Tauri

Overview

Tauri is an open-source framework designed for building cross-platform desktop applications. Established in 2019, it enables developers to create desktop applications for Windows, macOS, and Linux using familiar web technologies for the user interface, such as HTML, CSS, and JavaScript frameworks like React, Vue, Svelte, or Angular. Unlike frameworks that bundle a full browser runtime, Tauri leverages the operating system's native webview to render the frontend, which contributes to significantly smaller application bundle sizes and reduced memory footprint. The backend logic is powered by Rust, a language known for its performance, memory safety, and concurrency. This Rust core allows Tauri applications to interact closely with the underlying operating system, providing a robust and secure foundation for desktop functionalities.

Tauri is particularly well-suited for developers and organizations prioritizing application performance, binary size, and security. Its architecture minimizes the attack surface by avoiding the inclusion of an entire web browser and implementing a secure communication layer between the frontend and backend. This makes Tauri an option for applications where resource efficiency and security are critical considerations. Developers familiar with web development can quickly adapt to building UIs, while the Rust backend offers opportunities for high-performance computing and direct system access. The framework provides a comprehensive set of tools, including a CLI for project creation and management, and a robust API for common desktop features like file system access, notification handling, and inter-process communication.

The framework shines in scenarios where an existing web application needs to be packaged as a native desktop experience without the overhead associated with other cross-platform solutions. For instance, internal tools, utility applications, or productivity software can benefit from Tauri's lightweight nature and efficient resource usage. Its open-source model ensures transparency and community-driven development, providing a flexible and adaptable platform for various desktop application needs. While the learning curve might be steeper for developers new to Rust or native build processes, the long-term benefits in terms of performance and security can justify the initial investment in mastering its unique architecture.

Key features

• Cross-Platform Compatibility: Develop applications that run natively on Windows, macOS, and Linux from a single codebase.
• Small Bundle Sizes: Leverages the operating system's native webview (e.g., WebView2 on Windows, WKWebView on macOS) instead of embedding a full browser, resulting in significantly smaller executable files and lower memory consumption compared to alternatives like Electron applications.
• Rust Backend: Utilizes Rust for the application's backend logic, providing strong performance, memory safety, and access to native system APIs.
• Web Frontend Support: Compatible with any web frontend framework (React, Vue, Angular, Svelte, etc.) and standard web technologies (HTML, CSS, JavaScript) for building user interfaces.
• Security-Focused: Designed with security in mind, implementing features like context isolation, script sandboxing, and a secure inter-process communication (IPC) layer to minimize vulnerabilities.
• Native API Access: Provides a rich API to interact with native operating system features, including file system operations, notifications, system trays, and window management.
• Custom Protocol Handling: Allows applications to register and handle custom URL schemes, enabling deeper integration with the operating system and other applications.
• Automatic Updates: Includes built-in support for implementing secure and robust application update mechanisms.
• Bundler and CLI: Offers a command-line interface (CLI) for creating, developing, and building Tauri applications, simplifying the development workflow.
• Plugins System: Supports a plugin system to extend core functionality and integrate with third-party libraries or services.

Pricing

Tauri is a free and open-source project. There are no licensing fees or costs associated with using the framework for development or distribution of applications. Its development is supported by a community of contributors and various sponsors.

Common integrations

• Frontend Frameworks: Tauri integrates with any web frontend framework. Common choices include React, Vue.js, Angular, and Svelte for building the user interface.
• Rust Libraries (Crates): Developers can integrate any Rust crate for backend logic, leveraging the vast Rust ecosystem for tasks like database interactions, network operations, or complex computations. See the Rust Cargo Book on dependencies for more.
• JavaScript/TypeScript Libraries: Any JavaScript or TypeScript library can be used in the frontend, including UI component libraries, state management tools like Redux, or utility libraries.
• Build Tools: Integrates with modern web build tools such as Webpack, Vite, Parcel, or Rollup for bundling and optimizing frontend assets.
• CSS Frameworks: Compatible with CSS frameworks like Tailwind CSS or Material UI for styling applications.

Alternatives

• Electron: A framework that builds cross-platform desktop apps using web technologies, bundling a full Chromium browser runtime.
• Flutter: Google's UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase.
• Qt: A comprehensive cross-platform framework for developing graphical user interfaces and embedded systems, primarily using C++.

Getting started

To get started with Tauri, you'll need to have Rust and Node.js installed on your system. The following steps outline how to create a new Tauri project with a basic web frontend.

First, ensure you have the necessary prerequisites installed:

• Rust: Follow the instructions on rust-lang.org.
• Node.js (LTS recommended): Download from nodejs.org.

Then, you can create a new Tauri project using the Tauri CLI:

# Install the Tauri CLI (if not already installed)
npm install -g @tauri-apps/cli

# Create a new Tauri project
npx create-tauri-app my-tauri-app

# The CLI will prompt you for:
# 1. Your project name (e.g., my-tauri-app)
# 2. Your UI template (e.g., vanilla, react, vue, svelte, angular)
# 3. Your package manager (e.g., npm, yarn, pnpm)

# Navigate into your new project directory
cd my-tauri-app

# Start the development server
npm run tauri dev

This command will set up a new Tauri project, install dependencies, and launch your application in development mode. A new window will appear displaying your web frontend, powered by the Rust backend. You can then modify the frontend code (e.g., in src/index.html, src/main.js, or your chosen framework's files) and the Rust backend code (in src-tauri/src/main.rs) to build your application.