テキスト Diff & 比較
統一フォーマット出力の行単位 diff
🔒 このツールは完全にブラウザー内で動作します。入力データはサーバーに送信されません。
テキスト Diff / 比較
A privacy-friendly text diff tool. Paste original and modified text, get a unified line-by-line diff with stats. Backed by a classic LCS algorithm — same approach used by git diff. Local-only.
- Line-level diff with LCS algorithm
- Unified output (+ added, - removed)
- Stats: added / removed / unchanged
- Swap A / B in one click
- Privacy: text never leaves your browser
- No registration, no ads, no tracking
FAQ
What is the diff algorithm?
A classic longest common subsequence (LCS) implementation — same family as standard diff and git diff for line-level comparison.
Are there limits?
Up to a few thousand lines is instant. Very large inputs are chunked or shown as a whole-block replacement.