Visually compare and merge files and folders.

Scooter software's Beyond Compare is a Windows utility that combines directory compare and file compare functions in one package. Use it to manage source code, and keep directories in sync.

Searches Windows 95/98/NT directories for redundant duplicates to save disk space. Free from NH Productions.

Visual file and folder comparison utility. Product download, and an online user manual. [Shareware for Windows]

A full-featured visual file comparison and merging tool. Enables you to compare and work with different versions of the same text file with a color-coded side-by-side comparison. [Shareware]

File mirroring manager for Windows 9x/Me/NT/2000/XP that will compare two directory trees and report the differences in a simple form. Then select align files in either direction, by clicking on buttons or by dragging and dropping file names.

Provides tools for archive management, directory comparison and synchronization, UUENCODED and decoding, and file splitting. Split and concatenate large files and display the differences between any two files. Rename long filenames with wildcards, and...

Detect duplicate images existing more than once on a computer system or network. It does not matter if these pictures have different sizes, different contrast, color or gamma values or different file formats. [Windows]

Freeware Windows 95/98/NT visual file comparison, can output Unix Diff format. Shareware ExamDiff Pro version has word-by-word diff.

Shareware Win32 synchronization tools: FileSync, FTPSync, FileDiff (viewer), CmdSync (command line).