JSON Sorter
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JSON objects are unordered by specification, but the text on your screen is not — and that mismatch causes real friction. Two documents holding identical data can produce a diff full of changes purely because the keys came out in a different order, and a config file whose keys grew organically over time is hard to scan for the setting you want. Sorting the keys fixes both. This tool reorders every object's keys alphabetically, ascending or descending, at every level of nesting, leaving arrays in their original order because array order is meaningful in JSON. The result is a canonical form: sort both documents the same way and a text diff finally shows only genuine changes. It is also just easier to read a long settings file when the keys are in a predictable order. Everything runs client-side, so nothing is uploaded.
Features
- Sorts object keys alphabetically at every nesting level
- Ascending or descending order
- Leaves array element order untouched, as JSON requires
- Produces a canonical form for reliable diffing
- Validates input and reports parse errors with position
- Preserves all values exactly — only key order changes
- One-click copy of the sorted document
- Fully client-side processing
Why use this json sorter?
- Makes text diffs of two JSON documents meaningful
- Turns a sprawling config file into something scannable
- Guarantees no data is altered, only reordered
- Instant even on deeply nested documents
- Free with no signup or limits
Frequently asked questions
Does sorting JSON keys change the data?
No. JSON objects are unordered by specification, so reordering keys produces an equivalent document. Every key and value is preserved exactly.
Are arrays sorted too?
No. Array order is meaningful in JSON, so elements are left exactly where they are. Only object keys are reordered.
Why would I sort JSON keys?
Mainly to make two documents comparable: sorting both gives a canonical order, so a text diff shows only real changes rather than reordering noise. It also makes long config files easier to scan.
Does it sort nested objects?
Yes. Sorting is applied recursively, so objects nested inside other objects or inside arrays are sorted too.
How are keys with numbers or symbols ordered?
Keys are compared as strings, so ordering follows standard string comparison — digits and most symbols sort before letters.
Is my JSON uploaded?
No. Sorting runs entirely in your browser and the document is never transmitted or stored.