Is this semantic diff?

This is a character/word/line based diff perfect for text and code. It highlights exact changes.

No. The comparison happens entirely in your browser using JavaScript. Your confidential code or text never leaves your device.

Can I use it for Word docs?

You must copy and paste the text content from your documents. This tool compares raw text, not file formats.

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Text Diff Checker

Compare two blocks of text or code side-by-side to find differences instantly.

Display Options

Split View

Original Text (Left)

Modified Text (Right)

1	-	const foo = 'bar';	1	+	const foo = 'baz';
2	-	console.log(foo);	2	+	console.error(foo);
			3	+	// Added a new line

✓Key Benefits

•Side-by-side or split view
•Highlights added, removed, and changed lines
•Works with code and plain text
•Dark/Light mode support

Target Audience

•Developers
•Writers
•Editors

How It Helps

•Find changes in configuration files
•Compare code snippets
•Check revisions of an article

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How Diff Checking Works

In computing, data comparison is the calculation of differences between two sequences of data. This is typically done to show the evolution of a document or codebase.

This tool uses an algorithm (typically the Myers difference algorithm) to find the Longest Common Subsequence (LCS). It then deduces the minimal set of additions and deletions needed to transform the original text into the modified text.

Reading the Output

Red: Lines or characters that were in the original text but are removed in the new version.
Green: Lines or characters that are added in the new version.
White: Content that is identical in both versions.