マージ (バージョン管理システム)
↑ Guiffy - Diff Merge tool & Folder Compare application and API
↑ http://kdiff3.sourceforge.net
↑ http://www.mikado-ltd.com
↑ http://www.ensoftcorp.com/SimMerge/
↑ SourceGear | DiffMerge
↑ Compare Files, Folders, Text | UltraCompare
↑ http://www.ikv.de
↑ xxdiff: Graphical File And Directories Comparator And Merge Tool