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JSON Formatter

Format, minify, validate, sort, and explore JSON.

Input

Indent

Formatted JSON

{
  "hello": "world",
  "items": [
    1,
    2,
    3
  ]
}

Tree

root (2 entries)
  • hello: "world"
  • items (3 entries)
    • 0: 1
    • 1: 2
    • 2: 3

What JSON Formatter does

Format, minify, validate, sort, and explore JSON.

How to use it

  1. Paste JSON and choose indent size, tabs, or minify.
  2. Optionally sort keys. Parse errors show the line and column.
  3. Expand the tree with keyboard-accessible disclosure controls, then copy or save formatted.json.

Formats and limits

  • JSON text up to 2 MB; output is copied or saved as formatted.json. Errors include line and column.

Privacy

Processing stays in this tab. Input and generated content are not uploaded or stored.

Related tools

All processing runs locally in your browser. This tool is provided as-is without warranty. Keep backups of your original files before processing.

By uploading media, you confirm you own the content or have permission to modify it. Please read the Terms and Conditions.