API Tester
Send HTTP requests and view responses. No signup required.
API Tester
Send HTTP requests and view responses instantly
How to Use
- 1 Enter the API endpoint URL
- 2 Select the HTTP method (GET, POST, PUT, DELETE)
- 3 Add custom headers if needed (Authorization, Content-Type)
- 4 For POST/PUT requests, enter the JSON request body
- 5 Click Send and view the response
What You Get
Free online API testing tool. Send HTTP requests to any REST API and view responses including status codes, headers, and body. Supports all HTTP methods, custom headers, and JSON request bodies. Server-side proxy bypasses CORS restrictions.
Input: GET https://api.example.com/users
Output: Response with user list, status 200, response time
Input: POST with JSON body {"name": "John"}
Output: Created resource response, headers, timing info
Input: Add Authorization: Bearer token
Output: Authenticated request to protected endpoint
What is an API tester?
An API tester is a tool that lets developers send HTTP requests (GET, POST, PUT, DELETE) to web APIs and view the responses. It helps debug APIs, test endpoints, and verify integrations without writing code.
Is this API tester free?
Yes, 100% free with no signup required. Send unlimited API requests directly from your browser. No account needed, no usage limits.
Can I test APIs that require authentication?
Yes! Add custom headers including Authorization headers. Supports Bearer tokens, Basic Auth, and API keys. Just add the header with your credentials.
Does this work with CORS-restricted APIs?
Yes! Unlike browser fetch which is blocked by CORS, our server-side proxy bypasses CORS restrictions. Test any API regardless of CORS settings.
What HTTP methods are supported?
GET, POST, PUT, PATCH, and DELETE – all standard HTTP methods for REST APIs. Select your method from the dropdown before sending the request.
Can I send JSON request body?
Yes, enter JSON in the request body field. The tool validates JSON syntax before sending and automatically sets the Content-Type header.
How do I see response headers?
Response headers are displayed in the response panel after the request completes. View status codes, content types, cache headers, and all other response headers.
Will my API requests be stored?
No. All requests are processed in real-time and not logged. Your API endpoints, headers, and request data are never stored on our servers.
Requests are proxied through our server to bypass CORS. We do not log or store any request data.