Yuzool

Dev Tools

HTTP request tester

Build a request with a method, URL, headers and body, send it from your browser, and read the status, time, size and response. Copy any request as a curl command.

About CORS

A web page can only read responses from APIs that allow it (with CORS headers). Public APIs often do; many private ones don’t, and then the browser blocks the response. When that happens, Copy as curl gives you the same request to run in a terminal, where CORS doesn’t apply.

Where your request goes

Straight from your browser to the address you type, and nowhere else: there’s no server in between that sees your headers or tokens.

How to use it

  1. Pick the method and type the URL.
  2. Add headers (one per line, Name: value) and a body if you need them.
  3. Press Send, then read the response or copy it as curl.

Questions

Why does it say no response?

Usually CORS (the API doesn’t allow web pages), a wrong address, or an http:// address on this https:// page. Copy as curl and try in a terminal.

Can I save requests?

With Dev Tools Pro you can save requests and use environment variables such as {{baseUrl}} and {{token}}.

Related tools

Open all 35 Dev Tools. Everything runs in your browser; nothing you paste is uploaded.

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