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How to use JSON Key Sorter

Paste valid JSON, choose sort direction and indentation, then click Sort Keys. Nested objects and objects inside arrays are sorted too.

Frequently asked questions

Does it sort nested objects?

Yes. Sorting is recursive, so objects nested inside other objects or inside arrays all have their keys ordered consistently.

Is array order preserved?

Yes. Only object keys are reordered. The order of array elements is never changed, keeping the data semantically identical.

What input does it accept?

It expects strict JSON with double-quoted keys. Invalid JSON produces a clear error message so you can fix it before sorting.

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