Electrobun is a desktop application framework for building TypeScript applications with ultra-small bundles (~14MB), sub-50ms startup times, and kilobyte-sized updates using binary diff technology.

It provides cross-platform support for macOS, Windows, and Linux with built-in features including window controls, menus, dialogs, and a custom OOPIF webview implementation. The framework replaces the need for Electron or learning Rust with Tauri by bundling Bun as the main process runtime and native bindings written in Zig.