mockoon
The premium Open Source alternative to Postman
🎯 Best for:Developers needing offline-first API mocking without enterprise overhead.
What is mockoon?
Replaces cloud-based API mocking services that require accounts and remote deployments. Runs locally as a desktop application or CLI, allowing instant environment creation with custom headers and status codes.
Tech Stack
TypeScriptTesting & QA
Why mockoon?
- • No account or internet required
- • Supports environment variables and proxying
- • Import/Export Swagger and OpenAPI files
Limitations
- • Desktop app can be resource heavy
- • Limited team collaboration features
- • No built-in persistent database
3/5/2026
Last Update
454
Forks
71
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to mockoon instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Postman)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%