Sort JSON Keys Alphabetically Online
Overview
Sorted keys make JSON diffs cleaner and config files easier to read. When two developers edit the same JSON file independently, key order drift causes noisy git diffs where the content is identical but the order differs. Sorting eliminates that problem.
How to Use This Tool
Paste your JSON and click Sort Keys. The tool recursively sorts all keys at every nesting level in ascending alphabetical order. The output is formatted JSON with sorted keys ready to copy or download.
Ready to get started? It's free, no registration required, and your files never leave your device.
PDF Tool →Frequently Asked Questions
Does sorting JSON keys affect how the data works?
No. JSON objects are unordered by spec. Any JSON parser treats {a:1, b:2} and {b:2, a:1} identically. Sorting is purely for human readability and consistent diffing.
Are nested object keys sorted too?
Yes. The sort is recursive. Every object at every nesting level has its keys sorted alphabetically, including objects inside arrays.
Can I sort in descending order?
The default is ascending (A to Z). Descending sort (Z to A) is available via the Sort Order toggle in the tool options.