JSON Sort Keys

JSON doesn't guarantee object key order, so two semantically identical documents can look different simply because their fields are in a different order. This tool recursively sorts object keys alphabetically at every nesting level, without touching array element order.

How to use it

• Paste JSON and its object keys are sorted alphabetically instantly, at every level of nesting.
• Pick ascending or descending order as needed.
• Array element order is left untouched — only object keys are sorted, not array values.

Common uses

• Bringing JSON into a canonical form before comparing it with git diff or a text diff tool.
• Normalizing a configuration file for a stable, predictable look in a repository.
• Preparing JSON before computing a content hash, when the result needs to be deterministic regardless of input field order.

Things to keep in mind

Sorting is byte-based (by Unicode code point) — all uppercase letters come before lowercase ones regardless of alphabet, unlike locale-aware sorting.

Only object keys are sorted — array element order carries semantic meaning in JSON, so it's never changed.