Text Diff & Compare

Compare two texts and see differences highlighted. Find added, removed, and unchanged lines side by side. Free online diff tool.

Original Text

Modified Text

Frequently Asked Questions

How does the diff algorithm work?▼

It compares texts line by line and highlights additions (green) and removals (red).

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Remove duplicate lines from text instantly. Keep unique lines with case-sensitive or case-insensitive matching. Free online tool.