🔑 Key Reasons to Use Bun Instead of Node.js
1. Speed First
Runs on JavaScriptCore (Safari engine) → faster startup, low memory.
HTTP server benchmarks: ~110k req/sec vs Node’s ~60k.
File operations & SQLite are 3–6× faster.
👉 Perfect for serverless apps & cold starts.
2. All-in-One Tooling
Comes with:
✅ Runtime
✅ Package manager (faster than npm/yarn)
✅ Bundler
✅ Test runner
✅ Hot reload
👉 No need to install 4–5 separate tools.
3. Native TypeScript
- Run .ts files directly with:
- No Babel, ts-node, or config headaches.
4. Drop-In for Node.js
Supports most Node.js APIs.
Can reuse package.json.
Great for new projects, but some Node packages may still break.
5. Where Node.js Still Wins
Mature ecosystem, huge community.
Long-term support (LTS).
Enterprise reliability.
👉 Use Node.js for legacy apps & production workloads needing stability.
⚡ Quick Comparison
Speed → Bun is faster, Node.js is stable but slower
Tooling → Bun has everything built-in, Node.js relies on external packages
TypeScript → Bun supports natively, Node.js needs setup
Ecosystem → Node.js is mature, Bun is still growing
Best for → Bun = new/greenfield projects, Node.js = enterprise/legacy apps
References
💬 Which runtime do you prefer in 2025—Bun or Node.js? Let me know in the comments! 😊
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