* [Nock v14.0.15](https://github.com/nock/nock) – HTTP server mocking and expectations library for Node.js.

* [vite-plugin-mock-dev-server v2.3.0](https://github.com/pengzhanbo/vite-plugin-mock-dev-server) – Vite plugin that injects a mock development server to simulate API requests and responses.

* [Mock Service Worker v2.14.6](https://github.com/mswjs/msw) – Network-level API mocking library using Service Worker for seamless request interception in JavaScript.

* [ng-mocks v14.15.3](https://github.com/help-me-mom/ng-mocks) – Library to mock Angular components, directives, pipes, services, and tokens for simplified testing.

* [Mokapi v0.43.0](https://github.com/marle3003/mokapi) – API mocking tool using OpenAPI and AsyncAPI to simulate HTTP, Kafka, LDAP, and SMTP with JavaScript-driven behaviors.

* [Node.js Tusk Drift SDK v0.1.45](https://github.com/Use-Tusk/drift-node-sdk) – Node.js SDK that captures and replays service API calls to enable fast, deterministic testing.