About JSON Formatter

JSON Formatter & Validator is a free, browser-based tool designed for developers, data analysts, and anyone who works with JSON data regularly.

Features

• Format / Beautify — Pretty-print JSON with customizable indentation (2 spaces, 4 spaces, or tabs)
• Minify — Remove whitespace to reduce file size
• Validate — Detect syntax errors with precise line and column numbers
• Syntax Highlighting — Color-coded keys, strings, numbers, booleans, and nulls
• Copy to Clipboard — One-click copy of formatted output

For Developers

Whether you're debugging API responses, editing configuration files, or preparing data for storage, JSON Formatter helps you work faster and catch errors before they cause problems.

Privacy First

All processing happens in your browser. Your JSON data never leaves your device — we don't store, log, or transmit any input.