REST API Tester

Execute HTTP REST API requests directly from your browser. Test GET, POST, PUT, DELETE, and PATCH endpoints with custom request headers, authentication tokens, query parameters, and JSON payloads. Displays response body, status codes, and execution latency.

Why Use This Tool?

• Postman Alternative: Test API endpoints instantly without downloading heavy desktop software.
• API Debugging: Verify HTTP status codes (200 OK, 401 Unauthorized, 404 Not Found) and response payload JSON.
• Client-Side Security: API requests execute directly from your browser context.

How to Use

1. Select HTTP Method (GET, POST, PUT, DELETE) and enter Target Endpoint URL.
2. Add Request Headers (e.g. `Authorization: Bearer token`) and JSON Body.
3. Click Send Request to view status code, response time (ms), and formatted JSON response.

Real Working Example

Input:

Method: GET | URL: https://jsonplaceholder.typicode.com/todos/1

Output Result:

Status: 200 OK | Time: 142 ms | Response: { "userId": 1, "id": 1, "title": "delectus aut autem", "completed": false }

Important Technical Details & Features

• Fetch API Engine: Uses browser native Fetch API with full CORS request header support.
• Response Prettifier: Formats JSON responses automatically with syntax highlighting.
• Local Memory Execution: Request data and tokens remain private in local browser memory.

Related Editors, Design & Media Tools

• cURL Builder: Build cURL terminal commands.
• JWT Parser: Decode JSON Web Tokens.
• HTTP Status Codes: Browse HTTP response status codes.