JSON Formatter & Validator
Pretty-print, validate, minify, and view JSON as a collapsible tree
About this tool
Paste or type JSON to instantly format, validate, and minify it. The tree view lets you explore nested structures interactively. Everything runs locally in your browser — your data never leaves your device.
How to use
- Paste your JSON into the input area
- Click Format to pretty-print, or Minify to compress
- Use the tree view to explore nested structures
- Click Copy to copy the result to your clipboard