JSON Formatter
Drag & drop your JSON file here
or
Original JSON
Formatted JSON
Why Choose Our JSON Formatter?
Browser-Based
All processing happens in your browser. Your JSON data never leaves your device.
Powerful Formatting
Format, minify, validate, and fix JSON with customizable indentation and sorting.
Instant Results
Get formatted JSON immediately with syntax highlighting and error detection.
How It Works
Upload Your JSON
Drag and drop your JSON file or paste JSON directly into the editor.
Choose Formatting Options
Select your preferred indentation, sorting, and other formatting options.
View & Download
Get your formatted JSON with syntax highlighting. Copy or download the result.
Frequently Asked Questions
No, all processing happens in your browser. Your JSON data remains completely private and never leaves your device.
The formatter supports all standard JSON features including objects, arrays, strings, numbers, booleans, and null values.
Files up to 5MB work best for optimal performance. Very large files may take longer to process depending on your device’s capabilities.
Yes, the validator will detect common JSON errors and in many cases can automatically fix them.
Note: All processing happens in your browser. No data is uploaded to any server.
Maximum recommended file size: 5MB (very large files may take longer to process).