Diagnose a JSON parse error
Paste a JSON blob to check locally, or enter a URL to inspect what the server actually sends.
Paste any JSON blob. Parsing happens entirely in your browser — nothing is sent to any server.
An API endpoint that returns JSON. Linetrap will fetch it and show the raw response plus parse analysis.
Platform limitation: Hosts behind Cloudflare appear unreachable from this tool. Linetrap runs on Cloudflare Workers, which will not connect to its own network. Additionally, redirects are never followed, and the tool does not crawl linked resources. See plans for larger body limits.
Analysing…
Paste JSON text on the left tab to validate it in your browser, or enter a URL on the right tab to fetch and inspect the actual server response.