A simple Valid JSON message, or the parser error with its reason.

Does it fix the JSON?

No, it only validates; use the formatter to pretty-print a valid document.

✅

JSON Validator

Check whether your JSON is valid and see the exact error if not. Local, free, no signup.

No signup100% in your browserFree forever

JSON

RESULT

What does it report?: A simple Valid JSON message, or the parser error with its reason.
Does it fix the JSON?: No, it only validates; use the formatter to pretty-print a valid document.