mswjs / msw

The industry standard for API mocking in JavaScript.

mockoon / mockoon

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

stoplightio / prism

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

help-me-mom / ng-mocks

Angular testing library for mocking components, directives, pipes, services and facilitating TestBed setup

mswjs / data

Data querying library for testing JavaScript applications.

marchaos / jest-mock-extended

Type safe mocking extensions for Jest https://www.npmjs.com/package/jest-mock-extended

suites-dev / suites-unit

A unit testing framework for TypeScript backends working with inversion of control and dependency injection