JSON Validator
Validate JSON and find errors with the exact line and column. Free online JSON linter and checker.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
0 characters
Result
How to use JSON Validator
- 1Paste or type your text in the left box (or open a file).
- 2The converted result appears instantly on the right.
- 3Copy it with one click or download it as a file.
Questions
Is JSON Validator free?
Yes. JSON Validator is 100% free with no limits, no watermark, no sign up and no email required.
Is my data sent anywhere?
No. Everything is calculated locally in your browser. Nothing you type is sent to or stored on any server.
Does JSON Validator work on my phone?
Yes. JSON Validator works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.