Side by side

Mockoon vs Mockttp

Both stand on api mocking tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Mockoon

Free plan APILinuxMac+3

Mockoon covers local mock creation as well as automated, serverless, and private deployment workflows. The open-source version includes unlimited APIs and routes; collaboration and deployment management are available with Pro.

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Mockttp

Free plan LinuxMacSelf-hosted+2

Mockttp offers HTTP mocking and proxy capabilities as a JavaScript library, with support for parallel testing. Its browser setup requirement and certificate-handling cautions matter when planning test infrastructure.

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The facts

	Mockoon	Mockttp
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	API, Linux, Mac, Self-hosted, Web, Windows	Linux, Mac, Self-hosted, Web, Windows
Lowest paid plan	Team plan: €10 a month	Free or on request
Plans published	2	3
Maker	Not published	Not published
Website	mockoon.com	github.com
On api mocking tools	#7 of 26	#11 of 26

Mockoon: what it does well

Unlimited mock APIs and routes in the open-source version
Supports OpenAPI and existing API workflows
CLI can run mocks in CI and Docker
Desktop app works offline without an account
Pro supports private and isolated deployments

What to know first

Real-time team collaboration is a Pro feature

Mockttp: what it does well

Supports HTTP tests in Node.js and browsers.
Can stub responses and verify requests.
Parallel tests can configure ports and proxy settings automatically.
Works with promise-capable testing tools and HTTP clients.
Private vulnerability reporting is available through GitHub.

What to know first

Browser tests require an admin server outside the browser.
The setup guide warns against system-wide trust of test CAs.
Previous major versions receive security fixes for six months after the next major release.

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