Download FCU Free for Windows

This comparison tool lets you view the differences among files and directories. The program’s strongest point is its highly customizable interface. You can add or remove buttons and change keyboard shortcuts. FCU color-codes the differences among files, but it doesn’t scroll files synchronously. The comparison options are not numerous. The program can ignore spaces, cases, and end-of-line symbols. It does have extensive switches for command-line operations. The modest capabilities of FCU make it a tool for a power user’s toolbox.