Tauri vs Electron: Building Lightweight Desktop Apps with Web Tech

For years, Electron has been the go-to for building desktop apps with web technologies. But Tauri has emerged as a compelling alternative with fundamentally different architecture. Electron bundles Node.js and Chromium with every app, resulting in large bundle sizes (60-80MB minimum) and significant memory usage. Tauri takes a different approach—it uses the system's native web renderer (WebView2 on Windows, WebKit on macOS, webkitgtk on Linux) and a tiny Rust backend. The result is dramatically smaller apps (often under 10MB) and lower memory footprint. The developer experience differs too. Electron apps are essentially Node.js apps with Chromium—you write JavaScript for both frontend and backend. Tauri separates concerns: the frontend is your web framework of choice (React, Vue, Svelte), while the backend is written in Rust. This gives you Rust's performance and memory safety but requires learning Rust. Tauri's security model is stronger by default, with strict permission systems for system access. The trade-offs are clear: choose Electron for rapid development, large ecosystem, and pure JavaScript stack; choose Tauri when bundle size, performance, and security are critical and your team is comfortable with Rust. Both are production-ready—Tauri powers apps like Volt and Agenta, while Electron powers VS Code, Slack, and Discord.