JSON Formatter & Validator
Format, validate, and beautify JSON instantly. Syntax highlighting, error detection, and one-click copy.
Nothing leaves your browser. All processing happens locally.
💡 Tip: Click on any tree node to expand/collapse. Hover to copy JSON path.
How to Use
1
Paste your JSON data into the input field on the left
2
Click 'Format' to beautify with proper indentation, or 'Minify' to compress
3
View any validation errors with line numbers highlighted
4
Copy the formatted output with the copy button