sbdiff is a frontend for (GNU) diff with colorized side by side output
sbdiff is a frontend for (GNU) diff.
It compares files and directories line by line, outputs the files side-by-side in two columns and colorizes the differences.
Because it is a console application, no GUI is necessary.
pepper is a command-linetool for retrieving statistics and generating reports from source code repositories. It ships with several graphical and textual reports, and is easily extendable using the Lua scripting language.