Text Compare
Highlight differences between texts.
Runs entirely in your browser. Nothing you enter or upload leaves your device.
What the text compare tool does
This tool compares two versions of a piece of writing and shows what changed between them. Removed and added words are marked in a single combined text, so you can read each edit in context instead of hunting through both versions.
It is useful for checking what an editor or colleague changed in a draft, comparing two versions of a contract clause or policy, reviewing updates to product descriptions, or seeing how closely a rewrite follows the original.
How to use the text compare tool
- Paste the first text on the left and the second on the right. Swap reverses them.
- Removed words are struck through in red and added words are highlighted in green, shown as one combined text.
- Switch to character mode for small edits, and use the options to ignore case or punctuation.
Understanding the results
Above the highlighted text are four figures: similarity, then the words added, removed and unchanged (characters, in character mode). Similarity is twice the unchanged count divided by the combined length of both texts, so identical texts score 100%. Spaces, line breaks and, in word mode, punctuation marks are left out of the figures, and a difference in spacing alone is not shown as a change.
Word mode treats each word and each punctuation mark as a separate piece, which suits rewritten sentences. Character mode compares letter by letter and suits typo fixes and small corrections. If two long texts are too different to compare, the tool says so; comparing shorter passages helps.
Questions
What does the similarity score mean?
A quick measure of overlap, from 0% (nothing shared) to 100% (identical). It shows how much stayed the same, not how important the changes are, so one changed word in a contract can matter more than the score suggests.
What does Ignore punctuation do?
It leaves out commas, full stops, quotes and other symbols before comparing, so only changes to the words are shown. Use it when the punctuation was tidied and you only care about the wording.
How is this different from the diff checker?
Text Compare works word by word for prose. The Diff Checker works line by line, which suits code and lists.
Is my text uploaded?
No. Both texts are compared in your browser and are not saved.