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JSON Sorter

Reorder object keys alphabetically for stable, diff-friendly JSON output.

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Why sort JSON keys

JSON objects are unordered, but serializers pick an order anyway. Sorting keys recursively removes noisy diffs, makes snapshots comparable, and produces cleaner commits when configs change for real reasons—not random reordering.

Good fits

  • Normalizing API fixtures before checking them into git
  • Preparing two payloads for a meaningful JSON Diff
  • Generating canonical exports from tools that emit random key order
  • Linting hand-maintained config files in CI previews
Before: {"zebra":1,"alpha":{"c":3,"a":1}}
After:  {"alpha":{"a":1,"c":3},"zebra":1}

Practical notes

  • Array element order is preserved—only object keys are sorted.
  • Follow with JSON Minify when you need the smallest canonical form.
  • Sorting does not validate semantics; invalid JSON must be repaired first.

Frequently asked questions

Is sorting recursive?

Yes. Keys are sorted at every object level throughout the document tree.

Will this break my application?

Correct JSON parsers ignore object key order. If your code wrongly depends on order, fix the code—sorting exposes that bug.

Can I sort then minify in one step?

Run Sort first, then paste the output into JSON Minify for a compact canonical file.

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