Mockoon

Free desktop app for local API mocking

About Mockoon

At its core, Mockoon is an open-source desktop application for creating and running mock APIs locally in seconds. What sets it apart is that it supports dynamic responses, proxying and CI deployment for frontend development without backends. For developers, the appeal is simple: less infrastructure busywork, faster feedback and tooling that fits into existing workflows instead of replacing them wholesale.

Mockoon key facts

Category: Developer Tools
Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas: mocking, api, open source
Official site: mockoon.com

About the Developer Tools category

Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 738 tools. Alongside Mockoon, it includes Gitpod, Coder, Daytona, E2B.

FreeDeveloper Toolsmockingapiopen-source

More in Developer Tools

Comparing tools in the Developer Tools category? These related listings are worth a look: Gitpod — Cloud development environments, now Ona; Coder — Self-hosted cloud development environments; Daytona — Sandbox infrastructure for AI agents and code execution.