JSON Pretty Print
Format messy or minified JSON with customizable spacing and syntax highlighting.
100% Client-Side (No data leaves your device)
Raw Input
0 chars
1
Formatted Output
1
Pretty printed JSON will appear here...
User Guide: JSON Pretty Print
What is JSON Pretty Printing?
JSON is often minified or compressed to save bandwidth in data transmission, making it near-impossible for humans to read. Pretty printing is the process of parsing minified JSON strings and expanding them with tabulations, line breaks, and colored highlights so you can easily analyze data structures, find properties, and debug APIs.
How to Format JSON
- Input JSON: Paste your raw or compressed JSON string into the left workspace.
- Set Indent Spacing: Choose between standard 2 Spaces, 4 Spaces, or Tabs. Toggle Sort Keys if you want alphabetical ordering of object parameters.
- Run Beautifier: Click Pretty Print JSON to format your data in real-time.
- Export: Click Copy or Download to grab the clean file.
Why Use Our Pretty Printer?
- Real-time highlights: Identifies structural tokens (strings, numbers, nulls, keys) with matching colors.
- Safe Validation: Instantly warns you with the exact line number if your input contains syntax issues.
- Data Privacy: Runs completely locally in your browser. No contents are uploaded to any server.
Before & After Example
Minified Input:
{"id":101,"name":"Sarah","active":true}
Pretty Printed Output:
{
"id": 101,
"name": "Sarah",
"active": true
}