Free JSON Validator
Validate JSON with exact error locations.
Your result will appear here.
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How to use the JSON Validator
- 1Paste JSON.
- 2Click Validate.
- 3Fix reported errors.
Features
- Line/column errors
- Key statistics
- Depth analysis
Frequently Asked Questions
What are common JSON errors?
Trailing commas, single quotes, unquoted keys and smart quotes from word processors.
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About the JSON Validator
Check JSON validity and get the precise line and column of syntax errors. The JSON Validator runs entirely in your browser — your data is processed locally and never uploaded to a server. Explore more Developer tools or browse all free online tools.