API Tester - Free Online Developer Tool | IconVault
Test REST APIs from your browser: GET POST PUT DELETE, custom headers, JSON body, response viewer and history. Free.
API Tester
Send HTTP requests from your browser
CORS limit, stated plainly: this client runs in your browser, so it can only call APIs that permit browser requests (public APIs with CORS enabled, or same-origin URLs). A "Failed to fetch" error usually means the API blocks browsers, not that the API is down.
Request line
Headers
Body
5 of 5 free requests left.
History
Sent requests show up here.
Response
No response yet
Send a request to see the status, timing, headers and body here.
About this tool
IconVault's API Tester is a lightweight REST client that runs in your browser: send GET, POST, PUT, PATCH, DELETE, HEAD and OPTIONS requests with custom headers and JSON, form or text bodies. Inspect the status code, timing, response headers and a pretty-printed body (JSON is auto-formatted).
Your recent requests are kept in a local history so you can re-run them in one click. It states the CORS limit plainly: browsers only allow calls to APIs that permit them, and a failed fetch usually means the API blocks browsers. Free and runs fully in your browser.
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