JSON Formatter / Validator
Format, minify, validate, and copy JSON directly in your browser.
Browser-side Format JSON Validate Syntax Detailed Errors Minify JSON One-click Copy
JSON Input
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Output
No content yet
Ready
Paste JSON and choose an action.
Developer Tools
Fast and reliable JSON formatting and validation.
Browser-side
All processing stays in your browser
Format JSON
Beautify JSON with consistent indentation
Validate Syntax
Validate syntax before saving or sharing
Detailed Errors
Show parse errors with line and column details
Minify JSON
Compress JSON into a single line
One-click Copy
Copy clean output with one click
Frequently Asked Questions
Find answers to the most common questions.