JSON Beautifier Online

Pretty print messy and minified JSON instantly. Reformat keys and values into a readable developer-friendly structure.

Messy JSON Input

Beautified JSON

Pretty Size:

How to Use JSON Beautifier Online

01

Paste your dense, single-line, or poorly styled JSON text into the input field.
02

Choose your layout style (e.g., 2 spaces or 4 spaces).
03

Click the "Beautify JSON" button to expand it with professional coding spacing.

2026-06-03 Guide

Understand the key differences between compressed JSON and formatted JSON, and when each format is ideal for production and development.

2026-06-10 Guide

Learn various methods to format and beautify JSON, from browser-based tools to command-line utilities and IDE extensions.

Q What is the difference between JSON formatting and beautifying?: Essentially they are the same thing. Both formatting and beautifying involve parsing unreadable minified JSON data and outputting it with clean indentation and spacing so that it’s human-readable.
Q How many indentation styles do you support?: We support standard 2 spaces, 4 spaces, and Tab indentations. Choose whatever fits your code style guidelines.

Beautify and validate JSON for readability.

Validate JSON syntax with detailed line/column errors.

Explore JSON in a searchable, collapsible tree structure.

Compress JSON by removing spacing and empty lines.