JSON Viewer — paste URL and open (like jsonviewer.stack.hu)
Enter a URL that returns JSON (GET). If you get a CORS error, see proxy instructions below.
No request yet.
Notes:
If target server blocks cross-origin requests, you'll see CORS error — to fix, either enable CORS on the server or use a small server-side proxy (example below).
Be careful if you deploy an open proxy — restrict or authenticate it.
How this works (click)
The page sends a GET to the provided URL using fetch()
If response is JSON, it parses and shows both a collapsible tree and pretty raw JSON
If CORS blocks the request, use a server-side fetch (proxy)