Free tool
JSON Validator & Formatter
Paste any JSON to format, validate, diff, query with JSONPath, convert to YAML/XML, generate TypeScript interfaces, scan for secrets, and analyze structure — all in your browser.
- Format, validate, diff, query, convert — all in one tool
- Auto-generate TypeScript interfaces and Java classes
- 100% client-side — nothing is sent or stored
We recommend using this tool on a desktop view for the best experience.
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Structure analysis appears here when JSON is valid
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