Private Japanese diff
See the difference—and why it differs.
Compare text without sending it anywhere. Separate raw differences from differences after aligning width, Unicode, kana, whitespace, and line breaks.
Text to compare
Enter text on either side first.
Normalized right
Unified diff
Why use this comparison
- All processing happens in this browser; text, file names, and results are not uploaded.
- Raw and normalized differences are separate, so you can explain differences caused by notation.
- Each input is limited to 100,000 characters. Large input uses a safe replacement diff.
- Normalized output is saved only after you press the save button.
Normalization is a comparison aid, not a legal or code review. Keep original files when checking important documents or personal data.
Unicode normalization reference: Unicode Standard Annex #15