Compare Texts

Paste the original text on the left and the changed one on the right, then click “Compare”. The tool finds the shortest set of changes that turns the first text into the second, character by character, and then joins small changes into whole words and phrases so that the result is easy to read. What was removed is highlighted in red, and what was added in green. “Single Column View” shows both in one text, and “Double Column View” shows the two versions side by side. It is handy for checking the edits in a contract or an article, two versions of a translation or code.

Under the result, you see how much of the text the two versions have in common and how much differs, in percent and in characters, and the Levenshtein distance: the number of single characters that have to be inserted, deleted or replaced to turn one text into the other. The buttons above each field clear the text or change it to UPPERCASE or lowercase, for example to compare two texts regardless of capital letters, and the arrows swap the two texts. The comparison runs in your browser, so the texts are not uploaded anywhere.