Online JSON Sorter - Sort Keys & Arrays Instantly

Free online JSON sorter, pure client-side. Sort JSON keys alphabetically, sort array elements, ascending/descending, nested depth control. One-click copy.

🔒 100% Client-Side

📋 Input JSON

⚙️ Sort Options

Key Sort

Array Sort

Updated: 2026-07-11

Indent

🔒 No data upload — 100% client-side

How to Use

Follow these simple steps. All processing happens locally in your browser.

Input your data or upload your file in the tool area above.
Adjust any available options to customize the output.
Click the process button and get your result instantly.

FAQ

Does sorting modify the original data?

No. Sorting happens on an in-memory copy in your browser. The original JSON data is never modified.

Are nested objects sorted too?

Yes. Sorting recursively processes all nested objects and arrays at every level.

How are mixed-type arrays sorted?

Numbers sort by numeric value, strings by localeCompare. Different types are grouped then sorted.

Is the sorted output still valid JSON?

Yes. Only key/array order changes — structure and data types are preserved perfectly.

Will large JSON be slow?

No. The sorting algorithm is very efficient even for thousands of keys. Only multi-MB JSON may have brief latency.

Technical Details

This tool runs 100% in your browser using modern web technologies. No data is ever sent to any server. Your files remain on your device at all times.

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