JSON Key Sorter
Sort all object keys in your JSON alphabetically. Choose ascending or descending order. Nested objects are sorted recursively.
How to Use
- Paste your JSON — Paste the JSON with unsorted keys into the input panel.
- Choose sort order — Select ascending (A→Z) or descending (Z→A) from the dropdown.
- Click Sort — All object keys are sorted recursively, including nested objects. Arrays remain in their original order.
Key Features
- Recursive sorting — all nested object keys are sorted at every level
- Ascending and descending sort options
- Preserves array element order — only object keys are reordered
- Formatted output with 2-space indentation
Use Cases
- Standardizing JSON key order for consistent version control diffs
- Organizing configuration files for better readability
- Preparing JSON for comparison — sorting both files before diffing reduces noise
Frequently Asked Questions
Are nested keys sorted too?
Yes. Sorting is applied recursively to all nested objects at every level.
Does sorting change array order?
No. Only object keys are sorted. Array element order is preserved.
Does sorting change my data?
No. Only the order of object keys is changed. All values, arrays, and nested structures remain identical.
Why sort JSON keys?
Sorted keys make JSON easier to read and compare. They also reduce diff noise in version control, since key order changes won't appear as modifications.
Is sorting stable for keys with the same name at different levels?
Yes. Each level of nesting is sorted independently. Keys at the same level are sorted alphabetically, and the sort is applied recursively to all nested objects.