JSON Sort Keys

Summary

Paste any JSON and instantly get a version with all object keys sorted alphabetically, recursively at every nesting level.

How it works

1. Paste or type your JSON into the input panel on the left.
2. The tool parses the JSON and validates it in real time.
3. Every object at every nesting level has its keys sorted alphabetically.
4. Arrays keep their original element order — only object keys change.
5. The sorted JSON is formatted with 2-space indentation and shown on the right.
6. Click "Copy Output" to copy the result to your clipboard.

Use cases

• Normalize API responses before committing fixtures to version control.
• Compare two JSON blobs more easily after sorting both.
• Produce canonical JSON for hashing or signing.
• Spot missing or extra keys when debugging configuration files.
• Clean up hand-edited JSON where keys were added in random order.
• Prepare consistent test fixtures for snapshot testing.

Frequently Asked Questions