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What this JSON sort keys tool offers
Sort every object’s keys in your JSON alphabetically. Nested objects are processed recursively; array element order is left unchanged. Choose 2 or 4 space indent for the output. Paste, upload, or drag-and-drop; invalid JSON shows an error and snippet with links to the Formatter and Validator. Clear resets input, output, and file. Download or copy the result. All processing is client-side.
- Recursive sort: Every object in the tree has its keys sorted alphabetically. Only object keys are reordered; arrays keep their element order.
- Indent option: Output is pretty-printed with 2 spaces or 4 spaces so the result is readable and diff-friendly.
- Error handling: Invalid JSON shows the parser message and, when available, a snippet around the error. Links to Formatter and Validator help you fix the input.
- Clear: One click clears the input, output, and file input so you can load different JSON.
Why sort JSON keys?
Object key order in JSON is not guaranteed across systems, so diffs between two versions often show meaningless reordering. Sorting keys alphabetically gives a stable, deterministic order so version control and comparisons highlight real changes. Running the sort in the browser keeps your data private and works offline after the page loads.
- Stable diffs: Same logical data produces the same key order, so changes in Git or reviews reflect real edits.
- Privacy: Your JSON is never uploaded to sort it.
JSON key sorting runs fully in your browser with no server upload; recursive ordering, formatted output, and validation feedback update instantly.
Options at a glance
- Indent: 2 spaces or 4 spaces for the output. Applied to the sorted JSON only.
- Sort Keys: Parses the input and sorts all object keys recursively. Arrays are unchanged.
- Download / Copy: Export the result as a .json file or copy to clipboard.
- Clear: Clears input, output, any error, and file input.
Frequently asked questions
Is my data secure?
Yes. Processing runs entirely in your browser. Your data never leaves your device and is not sent to any server.
What gets sorted?
Only object keys are sorted alphabetically. Nested objects are processed recursively. Array elements are left in their original order.
What if my JSON is invalid?
The tool shows the parser error message and, when available, a short snippet around the error. You get links to the JSON Formatter and Validator to fix the input.
Can I load from a file?
Yes. Use the file picker above the input area or drag-and-drop a .json file. The file is read in your browser; nothing is uploaded. Loading new content clears the previous output and any error.