JSON Validator: Check If Your JSON Is Valid
Validate JSON and see exactly where a syntax error occurs.
Files never leave your deviceFree
How to use it
- Type or paste your text on the left.
- The result appears instantly on the right.
- Use “Copy result”.
About JSON Validator
Paste JSON and the tool tells you whether it is valid. If not, the message shows the position of the problem. Typical issues are missing quotes, extra commas and unmatched brackets.
Example
Input
{"a": 1,}Result
✗ Geçersiz JSON: Expected double-quoted property name in JSON at position 8 (line 1 column 9)
FAQ
Does it accept comments?
No. Standard JSON does not allow comments.
Are my files uploaded to a server?
No. Everything runs in your browser; your files and text never leave your device.
Is it free? Do I need an account?
The tool is free and needs no registration.
Does it work on a phone?
Yes, in modern desktop and mobile browsers; large files depend on your device power.
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