Send HTTP requests from your browser — custom headers, bodies, params, saved collections, and one-click cURL/Fetch/Axios snippets. Developers debug a REST endpoint without leaving the tab — runs locally, free to start.
Build HTTP requests with method, URL, headers, and body — then generate matching curl commands. Prototype endpoints without leaving the tab — local, free, no signup.
Test any HTTP endpoint by sending GET, POST, PUT, or DELETE requests directly from your browser. View response status, headers, and body.
Convert fetch, XHR, and HTTP client snippets to equivalent curl commands — headers and auth preserved for terminal debugging sessions.
Encode images to Base64 data URIs for CSS embedding and API payloads. Inline a logo without extra requests — local encoding, free, no signup.
Run everyday PDF operations from one toolbox — merge, split, rotate, compress presets without hunting tools. Handle 90% of PDF chores in one tab — local processing, unlimited saves.
Reproduce it here first: set method, URL, headers, and body, then send and read the status plus timing. A 401 means auth headers are wrong, 422 means the body shape is off — fix in the builder, then copy the working cURL snippet into your codebase.
Yes — requests fire from your browser with the Fetch API, so keys, tokens, and bodies never pass through our servers. Collections save to your browser's local storage only. Still, use test keys over production secrets when screen-sharing.
Anything you can express as custom headers — paste Bearer tokens, Basic credentials, or API keys as header rows and send. A typical debug run: add the Authorization header, hit send, confirm 200, then generate the Axios snippet for your app.
Yes — save requests into named collections in local storage, grouped by project or API, and reload them without retyping. Export the generated cURL per request for teammates; collections themselves stay on your machine.
There is no per-use counter: requests fire from your browser, collections live in localStorage, and snippets copy to clipboard — all with no caps. The only gate is the Pro page lock for anonymous visitors: sign in free for full access. No credits or downloads are ever involved.
Bodies marked JSON must parse or sending stops with an error; requests abort after 20 seconds. The History panel keeps your last 50 calls with method, status, and time.
API Request Builder
Build HTTP requests with method, URL, headers, and body — then generate matching curl commands. Prototype endpoints without leaving the tab — local, free, no signup.
API Tester
Test any HTTP endpoint by sending GET, POST, PUT, or DELETE requests directly from your browser. View response status, headers, and body.
Last updated October 2026