JSON Formatter & Validator

Format, validate, minify, and beautify JSON data with syntax highlighting

Format Validate Minify Beautify

JSON Editor

Input JSON

Characters: 0 | Lines: 0

Formatted Output


                            
Size: 0 B | Compression: 0%

About JSON Formatter

Key Features

  • • Format and beautify JSON with customizable indentation
  • • Validate JSON syntax with detailed error messages
  • • Minify JSON to reduce file size
  • • Syntax highlighting for better readability
  • • Sort object keys alphabetically
  • • Download formatted JSON files

Why Use Our JSON Formatter?

  • • 100% client-side processing - your data stays private
  • • Real-time validation and error detection
  • • Support for large JSON files
  • • Mobile-friendly interface
  • • No registration or limits
  • • Completely free to use

How to Use JSON Formatter

  1. Paste your JSON data into the input editor or click "Load Sample" for an example
  2. Click "Format" to beautify the JSON with proper indentation
  3. Click "Validate" to check for syntax errors
  4. Use "Minify" to compress the JSON by removing whitespace
  5. Customize formatting options like indentation and quote style
  6. Copy the formatted result or download it as a file

Features

Smart Error Detection

Pinpoints exact location of JSON syntax errors

Syntax Highlighting

Color-coded display for better readability

Multiple Formats

Support for standard JSON and JSON5

Fast Processing

Instant formatting even for large files

Privacy First

All processing happens in your browser

Cross-Platform

Works on desktop, tablet, and mobile