JSON Validator
Validate JSON syntax according to strict RFC 8259 specifications with exact error line indicators.
How to Use JSON Validator
Paste your JSON content into the editor.
Click 'Validate JSON'.
View green validation confirmation or exact line/character coordinates for syntax errors.
Frequently Asked Questions
Does this catch trailing commas?
Yes, standard JSON disallows trailing commas after objects or arrays, which this validator flags immediately.
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