Paste an original and a changed version to see exactly what differs.
The comparison uses the longest common subsequence method, the same idea behind version control diffs, so the result shows the smallest set of changes. Choose line mode for a classic side by side review, word mode for inline edits in prose, or character mode for tiny changes.
Ignore case and ignore extra whitespace remove noise when only the wording matters. Each side can hold up to 4000 lines, words or characters for an exact comparison, which covers most documents when you compare by line.
Green marks text that appears only in the changed version, and red marks text that was removed from the original.
Lines for code, lists and structured text. Words for essays and emails. Characters for spotting a single typo.
Exact comparison works up to 4000 units per side. For longer text compare by lines.