api-testing

Hoppscotch is a fast and beautiful API request builder and testing tool. Built with Node.js and Vue.js, it provides a modern, lightweight alternative to Postman with real-time collaboration features and comprehensive API testing capabilities.

Yaade is an open-source, self-hosted, collaborative API development environment. It provides a modern, web-based interface for API testing, documentation, and team collaboration, serving as an excellent alternative to commercial API development tools.

WebHook Tester is a powerful tool for testing WebHooks and more. It provides a comprehensive testing environment for webhook development, debugging, and validation with real-time monitoring, request inspection, and response simulation capabilities.