Node.js playground in your browser
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Tracked since2026
0 reviews trackedThe Bottom Line
Entry price
Free, no paid tier
Biggest pro
Node.js notebooks
Biggest con
Limited features
TL;DR - RunKit
- JavaScript playground in the browser
- Share and embed code snippets
- Supports npm packages
Pricing: Free forever
Best for: Individuals & startups
What is RunKit?
RunKit is a Node.js playground in the browser with every npm package instantly available. Write and share code snippets that others can run and modify. Embed interactive examples in documentation and blog posts. Endpoints turn notebooks into APIs. Used by npm itself to provide 'Try on RunKit' buttons. The fastest way to prototype Node.js code or share runnable JavaScript examples.
Pros & Cons
Pros
- Node.js notebooks
- Good for prototyping
- npm integration
- Easy sharing
- Free tier
Cons
- Limited features
- Not for production
- Performance varies
- Better alternatives exist
- Stripe owned
Key Features
JavaScript playgroundnpm packagesEmbed supportAPI endpointsReal-time executionCollaboration
Pricing Plans
Pricing checked May 28, 2026
Free
Free
- Public notebooks
- Every npm package installed
- In-browser JavaScript
- Node.js prototyping
- Fork other notebooks
Reviews
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RunKit FAQ
What is RunKit?
RunKit is an interactive JavaScript playground that runs Node.js in your browser with access to every npm package.
Is RunKit free?
Yes, RunKit is completely free to use for testing and sharing Node.js code.
Can I use RunKit notebooks as APIs?
Yes, every RunKit notebook gets an endpoint URL that you can use as a simple API.
Source: runkit.com