Is API Request Tester free to use?

Yes, API Request Tester on DevHexLab is completely free. No login, no account, and no payment required.

Does API Request Tester upload my data to a server?

No. API Request Tester runs entirely in your browser using client-side JavaScript. Your data never leaves your device and is never sent to any server.

Can I use API Request Tester offline?

Yes. Once the page is loaded, API Request Tester works without an internet connection because all processing happens locally in your browser.

What category does API Request Tester belong to?

API Request Tester belongs to the "Developer Utilities" category on DevHexLab. UUIDs, QR codes, API testing, and network tools

API Request Tester

Test HTTP API endpoints with custom headers and request body

apihttprequesttestrest

Headers

Learn more

Step-by-step guide

How to Test an API Endpoint

Step-by-step guide to sending HTTP requests and inspecting responses using the DevHexLab API Tester.

In-depth article

How to Test API Endpoints Without Writing Code

Testing APIs is an everyday developer task. Learn what API testing involves, what to check, and how to test any endpoint directly in your browser.

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