JSON Beautifier
Turn compact, hard-to-read JSON into beautifully formatted output with color-coded syntax. Choose your preferred indentation style.
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100% Private. Your JSON is beautified entirely in your browser. No data is ever sent to any server.
Input
0 chars 0 lines
Output
How to Beautify JSON
- Paste your minified or unformatted JSON into the input editor.
- Choose your indentation style: 2 spaces, 4 spaces, or tabs.
- Click Beautify or press
Ctrl+Enter. - Copy or download the beautifully formatted result.
Before and After
Input (minified)
{"user":{"name":"Alice","roles":["admin","editor"],"settings":{"theme":"dark","notifications":true}}}Output (beautified with 2 spaces)
{
"user": {
"name": "Alice",
"roles": [
"admin",
"editor"
],
"settings": {
"theme": "dark",
"notifications": true
}
}
}Complex nested structures become immediately readable.
Limitations
- Valid JSON only — Invalid JSON cannot be beautified. Use the JSON Validator to check syntax first.
- Whitespace only — Beautification affects indentation and spacing, not the actual data values.
- No syntax highlighting — Output is plain text. For syntax highlighting, copy to your code editor.
- Large file warning — Files over 50MB may slow your browser during processing.
Frequently Asked Questions
What is the difference between Beautifier and Formatter?
Both tools produce identical output using JSON.stringify with indentation. The Beautifier is a dedicated tool for pretty-printing, while the Formatter includes additional features like validation and minification.
Does beautification add syntax highlighting?
The beautifier focuses on clean indentation and formatting. Syntax highlighting may be added in a future update.
Is my data private?
Yes. All processing happens in your browser. Your JSON data is never sent to any server.