WebTools by PrepApp

API Tester

Test REST APIs directly from your browser. Send HTTP requests, add headers and authentication, submit request bodies, and inspect formatted API responses.

GET POST PUT PATCH DELETE
🖥
Browser
⇄
fetch()
☁
API

Quick Examples

Press Ctrl + Enter to send

Response

{ }
Send a request to see the response here.

Request History

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How It Works

1
Enter API URL — paste the endpoint you want to test.
2
Select HTTP method — GET, POST, PUT, PATCH or DELETE.
3
Add params, headers, body or authentication as needed.
4
Send and inspect the response — status, time, size, body and headers.

FAQ

Related Tools

🔒 100% client-side. Your request data, API keys and response data are processed directly in your browser and are not sent to our server.
⚠ Never share production API keys or sensitive credentials with untrusted APIs. Your browser may expose request details to browser extensions or the destination API.