Node.js → Bun
easyBun is 3-4x faster for HTTP throughput and startup time. Drop-in for most Node.js apps. Native TypeScript, test runner, bundler, and package manager included.
Estimated: 1-3h · 5 steps
Progress0%
Step 1: Install Bun
curl -fsSL https://bun.sh/install | bash
Step 2: Replace node commands
Most scripts: node index.ts → bun index.ts. package.json scripts auto-detected.
bun run start
Step 3: Replace package manager
npm install → bun install (10-25x faster). Reads existing package.json and lockfile.
bun install
Step 4: Test Node.js compatibility
Bun supports most Node.js built-ins. Known gaps: vm module, some crypto functions, native addons (.node files).
Step 5: Use Bun native APIs
Optional: replace node:fs with Bun.file(), replace http with Bun.serve() for max performance.
✓ App starts and serves requests. Tests pass. npm scripts work.