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Compare text differences online

Compare two texts and get a simple diff output.

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Diff Checker

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入力
入力
出力

使い方

  1. Paste the first text in the left box.
  2. Paste the second text in the right box.
  3. Click Compare and copy the diff result.

Best practices

  • For best performance, try with smaller inputs first.
  • Preview the output before downloading or sharing it.
  • Avoid pasting sensitive data on shared devices.

プライバシー

一部のツールはブラウザで実行されます。機能によってはサーバー処理が必要な場合があります。

例
Example 1
入力
Text A:
Line 1
Line 2
Line 3

Text B:
Line 1
Line 2 changed
Line 3
出力
--- A
+++ B
  Line 1
- Line 2
+ Line 2 changed
  Line 3
Example 2
入力
Text A:
alpha
beta
gamma

Text B:
alpha
gamma
delta
出力
--- A
+++ B
  alpha
- beta
  gamma
+ delta

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