Mockoon
Open-source desktop app for API mocking and prototyping.
⭐ 4.3/5Free Tier AvailableOpen SourceFounded 2017
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About Mockoon
Mockoon is the easiest and fastest way to design and run mock REST APIs. No remote deployment needed — it runs entirely on your local machine. It's open-source and supports OpenAPI.
Mockoon Interface Preview
Pricing at a Glance
| Free Tier | Lowest Paid | Enterprise |
|---|---|---|
| Fully free and open source | Free | Pro plans available |
Key Features
✓Local Mock Server
✓OpenAPI Support
✓Response Rules
✓Proxy Mode
✓CLI
✓Data Generation
Use Cases
- • API Tools + Development workflow optimization
- • Mockoon onboarding for new teams
- • Reducing manual tasks with Mockoon automations
Popular Integrations
SlackGoogle WorkspaceZapierHubSpotSalesforce
Pros & Cons
👍 Pros
- ✓Open source
- ✓No account needed
- ✓Easy to use
- ✓Runs locally
👎 Cons
- ✗Desktop only (for GUI)
- ✗Limited collaboration
- ✗Simpler than alternatives
User Reviews & Testimonials
“We switched in under a week and cut software spend materially while keeping the same workflow quality.”
“The comparison + pricing context made this an easy decision. Great shortlist quality.”
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