How to use REST Tester
- Give REST Tester the URL and any method, headers or body to work with.
- Run it, and REST Tester issues the request directly from your browser.
- Read the response REST Tester shows below — it comes from the API you entered, not from this site.
About this tool
REST Tester is a static, browser-based client. REST Tester sends HTTP requests from your browser to the API endpoint you enter and shows the status, headers and body of the response.
Because the call is made by your browser, it follows the same CORS rules as any web page, so some cross-origin APIs may refuse to respond. The request is sent from your browser straight to the API you name; this site has no backend and never receives it, though that server and your network can see it. Cross-origin calls follow the browser's CORS rules, and a connection is required.
Frequently asked questions
What does REST Tester do?
REST Tester sends the HTTP request you configure from your browser to the API you specify and shows the response status, headers and body.
Does REST Tester cost anything?
No — REST Tester is completely free, with no sign-up and no hidden limits.
Does REST Tester send my request anywhere?
Yes — REST Tester sends the request from your browser directly to the URL you enter. This site has no backend and never receives it, but the target server and your network do, and cross-origin calls follow browser CORS rules.
Can REST Tester call any API from the browser?
REST Tester can call any endpoint your browser is allowed to reach, but cross-origin APIs must send permissive CORS headers or the browser will block the response — that is a browser rule, not a limit of REST Tester.