Easy to see differences Easy to copy changes from one file or directory to the other Can compare files from Windows Explorer Can compare files in separate directories from Windows Explorer Can use plugins to see differences in binary files Can ignore some lines or parts of lines Can highlight differences within lines Can ignore many types of text differences (case, linebreak styles, comments, etc) Can do full file comparison when comparing directories or use file metadata (size, date, etc) Can exclude files and directories from directory comparison When comparing directories, shift+right click pops up Windows Explorer file menu License allows a single user to use on multiple computers