JSON Beautifier

Pretty print and beautify your JSON with customizable indentation. Choose 2 spaces, 4 spaces, or tabs. Syntax highlighting included. 100% client-side — your data never leaves your browser.

100% Client-SideNo UploadFree ForeverNo Sign-up
Indent:
Input
0 chars
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
0 chars
Output will appear here...

How to Use the JSON Formatter

1. Paste or type your JSON into the input panel on the left. The tool auto-formats your JSON as soon as you paste it, so you get instant results with zero clicks. You can also click "Load sample" to try it out with example data.

2. Choose your action from the toolbar. Click Format to beautify with your preferred indentation (2 spaces, 4 spaces, or tabs). Click Minify to compress your JSON into a single line. Click Validate to check for syntax errors with precise line and column numbers.

3. Explore and export your formatted output. Switch to Tree View to navigate your JSON structure with collapsible nodes and click any node to copy its path. Use the conversion tabs to transform your JSON into CSV, XML, or YAML. Copy or download the result with one click.

All processing runs entirely in your browser using native JavaScript. Your data is never uploaded to any server, making this tool safe for sensitive or proprietary JSON data. There are no file size limits beyond your browser's memory.

Ad

Frequently Asked Questions

A JSON beautifier (also called a pretty printer) takes compact or minified JSON and reformats it with proper indentation, line breaks, and spacing to make it easy to read and understand. It transforms a single line of JSON into a well-structured, human-readable format.
Paste your JSON into the input panel and it will be automatically beautified. You can choose between 2 spaces, 4 spaces, or tab indentation using the indent selector in the toolbar. The formatted output appears instantly in the right panel.
2 spaces is the most common convention for JSON files, used by npm, most JavaScript projects, and many APIs. 4 spaces is popular in Python-related projects. Tabs are preferred by some developers for accessibility and personal preference. Choose what matches your project's style guide.
Yes. This tool is specifically designed to take minified or compact JSON and transform it into beautifully formatted, readable output. Just paste the minified JSON and the beautifier handles the rest automatically.

Related Tools

{}Base64 Encoder.*Regex Tester{ }CSS FormatterAaWord Counter