Definition
Electron is an open-source framework for building cross-platform desktop applications using web technologies — HTML, CSS, and JavaScript — by combining the Chromium rendering engine with Node.js.
Overview
Electron was created at GitHub (originally under the name Atom Shell) to power the Atom text editor, giving web developers a way to build native-feeling desktop apps without learning platform-specific toolkits like Win32, Cocoa, or GTK. Each Electron app bundles a full Chromium browser instance for rendering its UI alongside a Node.js runtime for system-level access — the filesystem, native menus, and notifications — communicating between a main process and one or more renderer processes. Apps are packaged as standalone executables for Windows, macOS, and Linux, and standard web frameworks like React are commonly used to build the interface inside the renderer process. Electron powers many widely used desktop applications, including VS Code and Slack, but its bundled-browser approach also means Electron apps tend to be larger and use more memory than fully native applications — a trade-off that has driven interest in lighter alternatives like Tauri, which uses the operating system's native webview instead of bundling Chromium.
Key Features
- Combines Chromium (rendering) and Node.js (system access) in one runtime
- Cross-platform packaging for Windows, macOS, and Linux from one codebase
- Main/renderer process architecture with inter-process communication
- Access to native OS features: menus, notifications, filesystem, and tray icons
- Auto-update tooling for shipping desktop app updates
- Compatible with standard web frameworks like React, Vue.js, and Angular
- Long production track record powering major desktop applications