Mockoon

Mockoon is a versatile and powerful tool designed for developers and QA testers to create and run mock REST APIs locally without the need for an actual backend. With its user-friendly interface, Mockoon allows users to quickly set up mock APIs, customize response bodies, and introduce delays for realistic testing scenarios.
Mockoon's capabilities extend beyond simple mocks; it features a robust templating system utilizing Handlebars syntax that can generate dynamic mock data in formats such as JSON, CSV, XML, and HTML. This is particularly beneficial for frontend and full-stack developers, facilitating testing without a fully implemented backend.
The Mockoon CLI further enhances its utility, allowing users to run mock APIs in various Node.js environments, making it easy to integrate into existing workflows.
Mockoon is open-source, privacy-friendly, and requires no account creation, allowing developers to focus on what matters most - building and testing their applications efficiently.
The tool supports comprehensive documentation and community resources to help users maximize its potential in their development processes.
Whether you're looking to speed up your development lifecycle, improve integration testing, or create engaging client demos, Mockoon equips you with everything you need to succeed.