JSON & error explainer

AI

Paste a browser or runtime error, a response body, or the JSON snippet that failed to parse. You'll get a concise explanation and practical fix steps. Redact tokens and keys first, then validate fixes in the JSON formatter.

Error or JSON

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Paste a parser error, API message, or broken JSON. Do not paste API keys, tokens, or other secrets—trim or redact them first. Use the JSON formatter to validate fixed text.
JSON formatter

Common use cases

  • Decode cryptic parser errors when a config or API body fails JSON.parse.
  • Get plain-language hints before fixing the snippet in the JSON formatter.
  • Compare an API error message with the payload you think you sent.

Common mistakes to avoid

  • Including live tokens or PII in the paste

    Redact secrets and personal data first. Treat server-assisted routes as untrusted channels for sensitive strings.

  • Stopping after the explanation without validating the fix

    Always re-run the formatter or parser locally to confirm the document is valid JSON.

FAQ

Is my JSON sent to a server?

When server-assisted mode is enabled, your text may be processed remotely to produce the explanation—do not paste secrets.

Will this fix the file for me?

It suggests causes and steps. You apply edits in your editor or in the JSON formatter tool.

More tools

Related utilities you can open in another tab—mostly client-side.