TIPS
- Object keys must use double quotes in valid JSON.
- Validate raw input before editing it so the original error is easier to spot.
About JSON Validator
JSON Validator is a free tool that checks JSON syntax instantly and helps you confirm the resulting data type.
- No installation required. It runs directly in the browser.
- Built for quick checks during development, operations, and lightweight data cleanup.
- Includes a copy-friendly output area to shorten repetitive work.
FAQ
Can I see where the error is?
When parsing fails, the browser error message helps you identify the problem area.
Does it detect arrays and objects?
Yes. When validation succeeds, the tool also shows the detected JSON type.