HTTP Request Client

Make HTTP requests to any URL from your browser. Inspect headers, status codes, and response bodies.

CORS Limitation Notice

This tool runs in your browser and is subject to Cross-Origin Resource Sharing (CORS) policies. Requests will only succeed if the target server explicitly allows this website to make requests. Many public APIs will not work.

Request Builder

Method

URL

About the HTTP Request Client

The HTTP Request Client is a tool for developers to test and debug web services and APIs. It allows you to construct and send various types of HTTP requests (GET, POST, etc.), modify headers, and add a request body, then inspect the server's response, including the status code, headers, and body. It's a lightweight, browser-based alternative to desktop clients like Postman or Insomnia for quick tests.

Select the HTTP method (GET, POST, etc.) from the dropdown.
Enter the full URL of the API endpoint you want to test.
Optionally, expand the 'Headers' or 'Body' sections to add custom headers or a request body (for POST/PUT requests).
Click the 'Send' button.
The server's response, including status code, headers, and body, will be displayed below.

API Testing: Quickly check the response of an API endpoint you are developing.
Debugging: Inspect headers and response bodies to diagnose issues with a web service.
Learning: Understand how different HTTP methods work and see how servers respond to various requests.

Why did my request fail with a 'CORS' error?

Cross-Origin Resource Sharing (CORS) is a security feature enforced by browsers. For this tool to work, the server you are sending the request to must include a specific `Access-Control-Allow-Origin` header that permits requests from this website's domain. Most public APIs do not allow this, which will cause the request to be blocked by your browser. This tool is most effective for testing your own APIs during development, where you can control the CORS policy.