API Tester (REST Client)

Send HTTP requests and test REST APIs with full response details

Quick Examples

Timeout: sec

Headers

API Testing Tips

• Use JSONPlaceholder API for testing: https://jsonplaceholder.typicode.com
• Set Content-Type header to application/json for JSON requests
• Check response headers for rate limits and caching info
• This is a client-side tester - some APIs may block requests from browsers