NOTICE: DocDiff's development has moved to https://github.com/hisashim/docdiff . 0.4.0 (2011-02-23) was the last release from SourceForge.net. DocDiff compares two files and shows the difference. It can compare files word by word, char by char, or line by line. It has several output formats such as HTML, tty, Manued, or user-defined markup.