About API Testing & HTTP Debugging
Modern web development relies heavily on RESTful APIs. An API Tester or REST client is an essential tool for developers to verify endpoints, inspect response headers, and validate JSON payloads without writing code.
Testing HTTP Methods
Web services use different HTTP methods for different actions. GET is used for retrieving data, POST for creating records, PUT/PATCH for updates, and DELETE for removal. Testing these correctly ensures your backend API follows RESTful principles.
CORS & Proxies
Browsers enforce CORS (Cross-Origin Resource Sharing) for security. If you encounter errors testing a local or external API, our built-in CORS Proxy can help by relaying the request through a server, allowing you to debug APIs that don't yet have permissive CORS headers.