Mockoon
Open SourceCreate and test mock APIs – fast, simple, free
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MIT v9.6.1 Apr 27, 2026
Since Jul 2017 58
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AI Summary
Mockoon is an open-source tool for creating and managing mock APIs for local development and testing. It enables developers to simulate realistic API responses without requiring an actual backend server. Ideal for frontend developers, QA teams, and API designers who want to develop independently.
✓ Pros
- + Completely free and open-source
- + User-friendly GUI without programming knowledge required
- + Cross-platform availability (Windows, Mac, Linux)
✗ Cons
- − Limited features compared to professional API management tools
- − No built-in integration options with CI/CD pipelines
Use Cases
- → Frontend development without an available backend server
- → Testing and validating API specifications
- → End-to-end testing with simulated API responses
- → Documenting API behavior through mock endpoints
Who is it for?
Perfect for developers and QA teams who need to quickly and easily create mock APIs for their projects.
Tags
Platform: cross-platform
Pricing: Open Source
