HTTP Request Tester
Web & SEOBuild and send HTTP requests with custom methods, headers, and body. View full response headers, status codes, body, and timing in your browser.
Method
Key: Value
Ready to send
Press ↵ Enter or click Send
About HTTP Request Tester
The HTTP Request Tester lets you build and fire HTTP requests directly from your browser without installing any software. Choose your method (GET, POST, PUT, DELETE, PATCH, OPTIONS, HEAD), set custom request headers, provide a request body, and inspect the full response — including status code, response headers, body content, and round-trip timing. It is ideal for quickly testing REST APIs, webhooks, and server endpoints during development or debugging.
Features
- ✓Support for all standard HTTP methods: GET, POST, PUT, DELETE, PATCH, OPTIONS, HEAD
- ✓Custom request headers editor with key-value pairs
- ✓Request body editor with JSON, form-data, and plain-text modes
- ✓Full response header inspection
- ✓HTTP status code display with human-readable description
- ✓Response body viewer with syntax highlighting
- ✓Round-trip timing measurement in milliseconds
- ✓URL history for quick repeat requests
Common Use Cases
- Testing REST API endpoints during backend development
- Debugging webhook payloads and response handling
- Verifying authentication headers such as Bearer tokens
- Checking CORS pre-flight and actual request behavior
- Inspecting server-set cookies and cache-control directives
- Validating API contract changes before updating client code
Frequently Asked Questions
QDoes this tool send requests from my browser or from a server?
Requests are sent directly from your browser, so they are subject to the same CORS restrictions as any other browser-based fetch call. If the target server does not allow cross-origin requests, you may see a CORS error.
QCan I send a JSON body with this tool?
Yes. Select POST or PUT, switch the body mode to JSON, paste your payload, and ensure you add a Content-Type: application/json request header.
QWhy does the tool show a CORS error even though the API works in Postman?
Postman sends requests outside the browser sandbox and is not subject to CORS restrictions. Your API server must return appropriate Access-Control-Allow-* headers to allow browser-based clients.
QIs my request data sent to any third-party server?
No. All request building and dispatching happens entirely in your browser. No data is sent to our servers.