Beeceptor - Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.

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

Mimicry.rest - Create CRUD mocks in seconds and test frontend resilience with Chaos Mode. A lightweight, solo-dev tool for modern web development.

JSON Server - Get a full fake REST API with zero coding in less than 30 seconds. For front-end developers who need a quick back-end for prototyping and mocking

MockServer - Easy mocking of any system you integrate with via HTTP or HTTPS.

Mockaroo - A realistic data generator to test your app