JSONBrew

JSON Formatter & Validator

Format, validate, minify, and auto-fix your JSON with one click.

How to Use JSON Formatter & Validator

  1. Paste your JSON into the left editor, or drag and drop a file.
  2. Click Format to pretty-print, Minify to compress, Validate to check syntax, Sort Keys to alphabetize, or Auto Fix to repair common issues.
  3. The result appears in the right panel. Copy it with one click.

Features

  • Configurable indentation — 2 spaces, 4 spaces, or tabs.
  • Validation with precise error location (line and column).
  • Auto Fix removes comments, trailing commas, and converts single quotes.
  • JSON statistics — character count, depth, key count, and type breakdown.
  • 100% client-side — your data never leaves your browser.