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Bun
AICores
All-in-one JavaScript runtime, bundler, and package manager
88 reviews
Free tier
Bun is the future of JavaScript tooling. The speed gains are real and the all-in-one approach eliminates tool fatigue. Compatibility is not 100% yet but close enough.
What's great
- 10-100x faster than Node for many operations
- Replaces multiple tools
- Drop-in Node.js replacement for most code
Watch out for
- Not 100% Node.js compatible yet
- Windows support is newer
- Some npm packages may not work
Quick Facts
Founded2022
PricingFree
Free tierYes
Platformsmac, linux, windows
APINot available
CategoryDeveloper Tools
Q: What is Bun?
Bun is a fast JavaScript runtime that replaces Node.js, npm, and webpack in one tool.
Q: How much does Bun cost?
Bun offers a free plan. Free and open source.
Q: Who is Bun best for?
Bun is best for javascript developers wanting dramatically faster tooling.
Q: Is Bun free?
Yes, Bun is completely free and open source.
Best for
JavaScript developers wanting dramatically faster tooling
Not ideal for
Teams requiring 100% Node.js API compatibility
Free
Free and open source
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AICores Editorial Review
Reviewed by AICores Editorial Team
Last updated: May 2026
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