Drop in some JSON and this tells you immediately whether it's valid, pointing to the exact line and column of any error in plain language. It parses safely — never with eval — so your data stays private while you chase down a malformed response or config file.
JSON Validator is a quick, no-nonsense developer utility that runs entirely client-side, so your code and data never leave your machine.
No, it validates and locates errors. Use JSON Formatter to prettify valid JSON.
No — validation happens entirely in your browser.
Standard JSON does not allow trailing commas or comments, unlike JavaScript objects.