Text Diff Checker
Compare two texts side by side and see additions, removals, and changes highlighted. Free online text diff tool with line-by-line and word-by-word modes.
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The Text Diff Checker compares two pieces of text and shows exactly what has changed between them. Additions are marked with a plus sign (+), removals with a minus sign (-), and unchanged lines are shown for context. A summary at the bottom tells you how many lines or words were added and removed.
This tool is essential for developers comparing code versions, writers tracking document revisions, and anyone who needs to spot differences between two texts. Choose between line-by-line and word-by-word comparison modes depending on the granularity you need.
All comparison is done locally in your browser using the industry-standard diff algorithm. Your texts are never sent to a server.
How to Use Text Diff Checker
- 1Paste the original text in the left input area.
- 2Paste the modified text in the right input area.
- 3Choose line-by-line or word-by-word comparison mode.
- 4Review the diff output showing additions and removals.