JSON Formatter & Validator
Developer & DataFormat, beautify, minify, validate syntax, and inspect JSON with an interactive tree view.
Paste valid JSON to view formatted output and syntax tree
JSON syntax error detected. Check line indicators or use Auto-Repair.
How to use JSON Formatter
1. Validate & Beautify
Paste any raw JSON payload. Click Format to properly indent and structure nested keys, arrays, and objects with 2 or 4 space indents.
2. Minify for Production
Click Minify to strip all whitespaces and newlines for minimal payload transfer size in REST APIs or web storage.
3. Auto-Repair & Fix
Pasted JavaScript objects with single quotes or unquoted keys? The Auto-Repair button converts them into standard RFC8259 JSON.
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