JSON Sort Keys
Alphabetically sort the keys of a JSON object, recursively.
ToolsSoup's JSON Sort Keys tool is a free online tool that alphabetically sorts the keys of a JSON object — recursively, through every nested object. Paste your JSON, click Sort keys, and get a clean, consistently ordered version. Everything runs in your browser — no uploads, no sign-up, and nothing ever leaves your device.
What does sorting JSON keys do?
Sorting JSON keys reorders the properties of every object alphabetically while leaving the data itself unchanged. Object key order is not significant in JSON, so reordering keys produces an equivalent document that is simply easier to read and compare. Arrays keep their original order — only the keys inside objects are sorted — and the tool recurses into nested objects so the whole structure is consistent.
How to sort JSON keys online
Sorting keys with ToolsSoup takes just a few seconds:
- Paste your JSON into the input box on the left.
- Choose ascending (A to Z) or tick descending (Z to A).
- Click Sort keys, then copy the sorted JSON.
Why sort the keys of a JSON object?
A consistent key order makes JSON far easier to diff in version control: two files with the same data but different key orders show up as identical once sorted. It also produces a canonical form for comparing API responses, deduplicating config files, and spotting changes at a glance. Sorting never alters values — only the order in which keys appear.
Why use this JSON sort keys tool?
- 100% free with no ads, sign-up, or usage limits.
- Runs entirely in your browser — your data is never uploaded to a server.
- Sorts keys recursively through every nested object.
- Ascending or descending order with one click.
- Keeps array order and all values intact.
Frequently asked questions
Is this JSON sort keys tool free?
Yes. Every tool on ToolsSoup is completely free to use, with no account, sign-up, or hidden limits.
Does it sort keys in nested objects?
Yes. Sorting is recursive, so the keys of every nested object are alphabetized too, giving the whole document a consistent order.
Does it reorder arrays?
No. Array order is meaningful in JSON, so arrays are left exactly as they are. Only the keys inside objects are sorted, including objects that live inside arrays.
Does sorting change my data?
No. Object key order is not significant in JSON, so sorting produces an equivalent document with the same values — only the key order changes.
Is my data safe?
Absolutely. All sorting happens locally in your browser using JavaScript, so your JSON is never sent to or stored on any server.