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📢 Mockoon Pro is now available in beta. Self-host team collaboration, data synchronization, and API mock deployments on your own infrastructure.
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Why developers choose Mockoon
Instant & Local-First
Start in seconds with zero account creation or cloud dependencies. Fast, zero-latency local execution.
Realistic Scenarios
Simulate real-world conditions with dynamic templating, Faker data, route rules, and custom delays.
Automate CI & Tests
Run headless mocks in CI/CD pipelines, Docker, or GitHub Actions using the lightweight CLI.
Team Collaboration
Synchronize mocks in real time, manage team access, and host remote deployments with Mockoon Pro.
Traditional development vs API mocking
See how Mockoon removes dependencies and keeps your delivery moving
Without Mockoon
- Frontend teams blocked waiting for backend APIs to be ready
- Costly third-party API quotas and rate limits during development
- Flaky test environments and hard-to-reproduce edge cases
- Complex, fragile staging server and sandbox setups
- Slow feedback loops between API designers and frontend consumers
With Mockoon
- Parallel development with mock contracts from day one
- Unlimited local API calls with zero infrastructure cost
- Test any scenario: errors, timeouts, rate limits, and chaos
- Fast, isolated mocks runnable locally or in headless CI/CD
- Rapid feedback, live synchronization, and real-time collaboration
Create realistic mock endpoints instantly
Build mock APIs with authentic REST endpoints, HTTP methods, and response codes. Define GET, POST, PUT, DELETE operations with dynamic JSON responses using templating helpers and Faker.js.
Simulate complex scenarios and edge cases
Define multiple responses per route and trigger them dynamically with rules matching headers, query params, body payloads, or cookies. Easily test errors, timeouts, and rate limits.
Intercept and record real API requests
Forward requests to your real APIs, record them, and automatically generate mock routes from live traffic to inspect payloads or work offline without friction.
Automate testing in CI/CD pipelines
Use the lightweight CLI and official Docker image to run mock servers headlessly in GitHub Actions, GitLab CI, or local test suites with zero external dependencies.
Collaborate with your team in real time
Self-host Mockoon Pro on your own infrastructure to synchronize mock APIs across teams, manage instances, and streamline organization-wide API governance.
Trusted by thousands of
Developers! Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
snap install mockoon
Ubuntu
I can wholeheartedly recommend @GetMockoon if you're looking for an easy way to #mock Http-Endpoints locally.
This tool just works, it's super intuitive. Love it.❤️
Alexandros
Mockoon is the best! It's the easiest and quickest way to mock APIs locally.
Chuma Umenze
OMG its a life saving tool for FrontEnd and FullStack developer. Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open-source.
Rubesh Gain
Forgot to mention an important part of this article. I am leveraging @GetMockoon to implement the APIs!
All credit to @255kb who developed this wonderful tool.
Nabil Kazi
@255kb Thanks for Mockoon! such a handy tool!
Axel
Did I already say that Mockoon is awesome? Mockoon is the easiest and quickest way I found to run mock APIs locally. #RestAPI #Prototyping #DeveloperTools #OpenSource
P.S. It's made with #Electron and this is a huge bonus in my eyes.
Nicola Orritos
If you're a mobile/frontend developer and you're suffering with DEV environment, start mocking your APIs with @GetMockoon. It's amazing! Thanks, @255kb for creating this! I'm using every time that I develop new iOS projects!
Sr. Décio Montanhani
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