Text Diff & Compare Tool - Find Differences Online

Compare two texts and see differences highlighted. Line-by-line and word-by-word comparison. Perfect for code review and document comparison. Free and private.

Original Text

Modified Text

Ignore whitespace

Ignore case

Show line numbers

Show inline word changes

Differences

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Frequently Asked Questions

The tool uses a Longest Common Subsequence (LCS) algorithm to compare texts line by line, highlighting additions (green), deletions (red), and modifications (yellow with inline word changes).

Yes. The tool works great for comparing code, configuration files, JSON, HTML, XML, or any text content. Monospace font display makes code differences easy to spot.

Green highlights show additions (new content in the second text), red shows deletions (content removed from the first text), and yellow shows modified lines. Inline word changes appear with darker highlighting.

Yes. All comparison happens in your browser using JavaScript. No text is sent to any server. Perfect for comparing confidential documents or proprietary code.

Yes. Enable 'Ignore whitespace' to skip differences caused only by spaces, tabs, or line endings. Useful when comparing code with different indentation styles.

When enabled, modified lines show word-by-word differences within the line. Added words appear in green, deleted words in red with strikethrough, making it easier to spot exact changes.

Yes. Disable 'Show line numbers' to remove line number prefixes. This is useful when you want to copy the diff output without line references.

When enabled, text comparison treats uppercase and lowercase as identical. 'Hello' and 'hello' are considered the same, useful for case-insensitive document comparisons.

Yes. Click 'Swap Texts' to reverse which text is considered 'original' and which is 'modified'. This reverses the diff perspective (additions become deletions and vice versa).

The statistics show how many lines were added, deleted, modified, or unchanged. This gives you a quick overview of the scope of changes between two versions.

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