Mockoon is the easiest and quickest way to design and run mock REST APIs.

YATTIE exists to help make tester's lives easier. Ideally, it should remove friction from the exploratory testing process - everywhere from gathering evidence to submitting reports.

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.

Hand-crafted lightweight Rest Client for testing APIs. Supports collections, environments, git collaboration and local storage.

Testing and validating REST services in Java is harder than in dynamic languages such as Ruby and Groovy. REST Assured brings the simplicity of using these languages into the Java domain.

Achieve effortless quality with zero coding, zero maintenance, and the autonomous power of the world's first open-source testing agent.