
Description: WireMock is an open source tool for simulating HTTP-based APIs during development. It enables mocking and stubbing of APIs and servers before they are fully developed to enable faster testing of applications that integrate with them.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Mockoon is an open source API mocking application that allows developers to simulate APIs and external services during development and testing. It provides a intuitive interface to quickly create mock HTTP responses, endpoints, proxy paths and examples.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API