A Postman-like HTTP client that runs fully in your browser — build params / headers / body and inspect the response.
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Build an HTTP request: choose a method, type the URL, add query params / headers / body in the tabs, then Send. The request runs from your browser via fetch — responses render with status, elapsed time, size and (for JSON) syntax-highlighted body. Big limitation: browsers enforce CORS, so APIs that don't return Access-Control-Allow-Origin will block the response — toggle "Use CORS proxy" and pick a public proxy to relay the request (privacy note: the proxy sees your traffic). 30 s timeout. Nothing is uploaded to our server.