JSON Formatter v1.0
Format messy JSON into clean, readable code instantly. Our JSON formatter adds proper indentation and syntax highlighting, making complex data structures easy to read and debug.
No data uploaded – runs 100% in your browser
Used by developers in 120+ countries
v1.0 • Updated Nov 2025
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How to Use the JSON Formatter
- Paste your JSON data into the input field
- Click 'Format' or watch it auto-format
- Adjust indentation settings if needed
- Copy the formatted output or download as a file
What is JSON Formatter?
A JSON formatter is a tool that takes minified or poorly formatted JSON data and restructures it with proper indentation, line breaks, and spacing. This makes JSON data human-readable while maintaining its validity.
Why Use a JSON Formatter?
- Instantly readable JSON output
- Helps debug API responses and config files
- Syntax highlighting catches errors visually
- Works entirely in your browser - no data sent to servers
- Supports large JSON files without lag
Frequently Asked Questions
What is a JSON Formatter?
A JSON Formatter is a tool that beautifies and restructures JSON data with proper indentation and formatting, making it easier to read and debug.
Is this JSON Formatter free?
Yes, this JSON Formatter is completely free and runs entirely in your browser.
Is my data secure?
All processing is done locally in your browser. No data is uploaded or stored on any server.