pollyjs

The premium Open Source alternative to VCR

🎯 Best for:Web developers needing deterministic network testing.
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Apache-2.0License

What is pollyjs?

Replaces manual API mocking by recording and replaying network requests in the browser or Node.js. It provides a standalone server and client-side interceptors for consistent test environments across different frameworks.

Tech Stack
JavaScriptTesting & QA

Why pollyjs?

  • Framework agnostic
  • Supports HAR file format
  • Real-time recording

Limitations

  • Initial setup overhead
  • Large HAR file management
  • Limited to HTTP/HTTPS
3/5/2026
Last Update
355
Forks
56
Issues
Apache-2.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to pollyjs instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on VCR)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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