✍️ Content

Online Text Comparison — Find Differences

Paste the original and revised texts — the tool highlights added words in green and deleted words in red. Operates word-by-word entirely in the browser, no data sent to a server.

Original text0 w.

Modified text0 w.

Paste both texts — differences will appear here

Frequently asked questions

How does the tool compare texts?

The algorithm splits both texts into words and finds the Longest Common Subsequence (LCS). Words present in the second text but absent from the first are marked as added; words present in the first but absent from the second are marked as deleted.

Are my texts sent to a server?

No. The comparison runs entirely in the browser using JavaScript. Your data is never stored or transmitted anywhere.

Where is this useful?

Comparing article drafts before and after a copywriter's edits. Verifying that AI did not alter the meaning during revision. Cross-checking versions of documents. Spotting discrepancies in similar texts.

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