Get Started

Welcome to Bun Installation Quickstart TypeScript TypeScript 6 and 7

Watch Mode Debugging REPL bunfig.toml File Types Module Resolution JSX Auto-install Plugins File System Router

Cookies File I/O Streams Binary Data Archive SQL SQLite S3 Redis Workers Environment Variables Shell Spawn WebView Cron Node-API FFI C Compiler Transpiler CSRF Protection Secrets Console TOML YAML Markdown JSON5 JSONL HTMLRewriter Image Hashing Glob Semver Color Utils Globals Bun APIs Web APIs Node.js Compatibility

Standards & Compatibility

Spawn

Spawn child processes with `Bun.spawn` or `Bun.spawnSync`

Shell

Use Bun's shell scripting API to run shell commands from JavaScript

WebView

Control a headless browser from Bun for automation, testing, and scraping — zero dependencies on macOS, Chrome DevTools Protocol everywhere else

On this page

Spawn a process (Bun.spawn())Input stream Output streams Exit handling Resource usage Using AbortSignal Using timeout and killSignal Using maxBuffer Inter-process communication (IPC)IPC between Bun & Node.js Terminal (PTY) support Terminal options Terminal methods Reusable Terminal Platform differences Blocking API (Bun.spawnSync())Benchmarks Reference