Compare files with ExamDiff

Features

• There is no need to specify both file names: enter a directory name for one of the files, and ExamDiff uses the other file's name in that directory.
• Remembers a user-specified number of recently compared first and second files, for quick selection of the next pair.
• Autopick in the Compare dialog remembers matching file pairs.
• Automatically detects file changes and offers to re-compare.
• One-push re-compare that keeps your place in the files.
• Drag and drop one or two files into the window (e.g. from Windows Explorer).
• Opens the first or second file in any editor you configure, at the current line, through the variables $FILE (file name), $CURFIFF (line where the current difference starts), and $CARET (caret line).
• Saves the differences as a standard UNIX DIFF file.
• Easy navigation through differences with Previous / Current / Next Difference buttons and hot keys, or a drop-down list of all differences.
• Copy text from the comparison panes by drag and drop, a hot key, or a right-click menu.
• Search for strings in the comparison panes; remembers your most recent searches.
• Customizable colors, font, and tab size; "Show Differences Only"; options to ignore white space, changes in amount of white space, leading or trailing white space, and case; "Treat files as text files".
• Customizable file extension filter, for example to show only .c and .cpp files.
• Tooltips with file properties (over the pane title bars) and the difference number (over the current-difference marker).
• Adjustable pane splitter with synchronized scrolling; switch between horizontal and vertical layout, center the splitter, or hide a pane.

Command line

ExamDiff [Filename1] [Filename2] [Options]

Options /i, /w, /b, /l, /e, /t, and /d can be negated with "!" (e.g. /!i means do not ignore case). Options you don't set keep their last used values.