Skip to content

Browser storage remembers preferences and drafts you save on this device. No ads or visitor-tracking analytics. Browser storage

Format and validate JSON instantly.

Paste messy JSON, catch syntax errors, create readable output, minify it again, copy or download the result.

Your text

Formatted JSON

Results update as you type. Nothing is copied or downloaded automatically.
Your result appears here as you type.
Output options
Paste JSON to begin.
How this tool works

Validates JSON syntax and preserves number and string literals when formatting. Keep the original source as your reference.