JSON Beautifier · red edition

JSON Beautifier / Formatter

Prettify or minify your JSON with customizable indentation

How it works
This tool uses JSON.stringify to format or minify JSON. It validates the input and shows errors if the JSON is invalid. Choose your preferred indentation style (2 spaces, 4 spaces, or tabs).
Features
  • Format (beautify) with indentation
  • Minify (remove all whitespace)
  • Swap input/output for quick editing
  • Copy formatted code to clipboard
  • Load an example to get started

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Creator & Maintainer

Image of Faiq Ur Rahman, CEO & Founder Toolraxy

Faiq Ur Rahman

Founder & CEO, Toolraxy

Faiq Ur Rahman is a web designer, digital product developer, and founder of Toolraxy, a growing platform of web-based calculators and utility tools. He specializes in building structured, user-friendly tools focused on health, finance, productivity, and everyday problem-solving.

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Why use this tool?

Instant Formatting

Beautify messy JSON into a readable structure.

Error Detection

Quickly validate JSON and spot syntax errors.

Tree View

Explore JSON data in a collapsible, interactive tree.

Minify JSON

Compress JSON for APIs, storage, or faster transfer.

About the JSON Formatter

The JSON Formatter Tool is a free, browser-based utility that helps developers, data analysts, and students work with JSON data.
It supports formatting, minifying, validating, and tree visualization without installing any software. Whether you’re debugging APIs or cleaning JSON for storage, this tool ensures accuracy and saves time.

How to Use the JSON Formatter

  • Paste or type your JSON into the Input JSON box.
  • Click Format to beautify or Minify to compress.
  • Use Options (indentation, quotes, sorting, theme) to customize output.
  • View the JSON as formatted text or explore it in the Tree View.
  • Click Copy to save the cleaned JSON to your clipboard.
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FAQs

What is JSON?

JSON (JavaScript Object Notation) is a lightweight format for storing and exchanging data, widely used in APIs, apps, and databases.

Yes ✅ — this tool runs completely in your browser. No data is sent to any server.

This tool focuses on formatting and validating JSON. For conversions (JSON ↔ CSV, XML, etc.), you may need separate tools.

Yes, but performance may vary depending on your browser and system. For very large files, use a desktop editor.

Yes, but note that valid JSON requires double quotes. The tool can display single quotes for convenience, but it won’t be valid JSON.

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