Free, browser-based utilities for everyday developer workflows

API & Web Tools

Utilities for day-to-day API development: parse URLs, convert cURL commands, build/inspect headers, and debug requests faster.

  • Browse API and HTTP utilities (URL parser, headers, cURL) in one place.
  • Use these tools to debug requests, responses, and headers fast.
  • Runs locally in your browser. No uploads.
Loading...
Common workflows:
  • Paste a URL, clean tracking params, rebuild and copy.
  • Convert cURL -> Fetch/Axios/Python/OkHttp/Node.
  • Parse raw headers, dedupe/normalize, export to JSON/Map.

Favorites in this category

No favorites yet.

Recently used in this category

No recent tools yet.
Tools
Loading API & Web tools from index.html...

How to use API HTTP Tool

Enter a URL, select an HTTP method, and add headers or a request body. Click Send to execute the request and inspect the response status, headers, and body in the output panel.

Common use cases

Developers use this to quickly test REST or GraphQL endpoints without leaving the browser. QA engineers use it to validate API contracts against staging environments, and backend teams use it to debug webhook payloads and authentication flows.

Why run this in your browser?

All processing happens locally in your browser. Your data never leaves your machine, making it safe for sensitive payloads, internal API responses, and confidential configurations.