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

S3

Bun provides fast, native bindings for interacting with S3-compatible object storage services.

SQLite

Bun natively implements a high-performance SQLite3 driver.

Redis

Use Bun's native Redis client with a Promise-based API

On this page

Bun's S3 API is fast Basic Usage Bun.S3Client & Bun.s3 Working with S3 Files Reading files from S3 Memory optimization Writing & uploading files to S3 Working with large files (streams)Presigning URLs Setting ACLs Expiring URLs method new Response(S3File)Support for S3-Compatible Services Using Bun's S3Client with AWS S3 Using Bun's S3Client with Google Cloud Storage Using Bun's S3Client with Cloudflare R2 Using Bun's S3Client with DigitalOcean Spaces Using Bun's S3Client with MinIO Using Bun's S3Client with supabase Using Bun's S3Client with S3 Virtual Hosted-Style endpoints Credentials S3Client objects S3Client.prototype.write S3Client.prototype.delete S3Client.prototype.exists S3File Partial reads with slice Deleting files from S3 Error codes S3Client static methods S3Client.write (static)S3Client.presign (static)S3Client.list (static)S3Client.exists (static)S3Client.size (static)S3Client.stat (static)S3Client.delete (static)s3:// protocol UTF-8, UTF-16, and BOM (byte order mark)