DirSync Pro
DirSync Pro is an open-source file synchronization and backup utility for Windows, Linux and macOS. "DirSync Pro" is based on the program "Directory Synchronize (DirSync)", which was first released in February 2003 by Elias Gerber. He subsequently developed it with Frank Gerbig and T. Groetzner. "DirSync Pro" was released by O. Givi in July 2008, based on a branch of the "DirSync" code. Many parts of "DirSync Pro" have gone through major rewriting and redesign ever since. DirSync Pro offers a graphical user interface from which the user can manage and run multiple synchronization tasks. As of  version 1.31, it supports local folder to folder synchronization, but does not support synchronization via FTP yet. The application is self-contained within its own directory, and is therefore fully portable. DirSync Pro makes it possible to compare a couple of directories and synchronize their content. It can be used to create incremental backups. The synchronization can be set up to mirror a directory into another one unidirectionally, or to synchronize the content of two directories bidirectionally. Before synchronization, the user can run an analysis on the source and destination. DirSync Pro detects any kind of changes to any file /directory in the source (e.g. file/directory modification, move, deletion, renaming) and can synchronize the destination accordingly. Features. DirSync Pro provides the following predefined synchronization modes: When synchronizing bi-directionally, "DirSync Pro" detects synchronization conflicts. These conflicts may occur if a file is edited in both directories independently. "DirSync Pro" offers these options to solve the bi-directional synchronization conflict: When synchronizing mono-directionally in a custom mode, "DirSync Pro" detects synchronization conflicts. These conflicts may occur if a file is edited in the destination directory independently. "DirSync Pro" offers these options to solve the mono-directional synchronization conflicts: DirSync  Pro lets the user configure unlimited number of filters to include or exclude files and directories. The user can set up a combination of unlimited number of filters of the following types: DirSync Pro has a schedule engine with many options to schedule synchronization tasks, e.g. every minute, hourly, daily, weekly, and monthly. DirSync Pro has many logging facilities to create detailed logs per job, per jobset, or globally. DirSync Pro preserves (synchronizes) DOS file attributes, POSIX file permissions and ownerships and supports symbolic links. Reception. Linux.com rated the utility positively, saying that "it makes defining a bidirectional sync as  simple as picking two directories". Likewise, freshmeat calls it a "powerful, easy-to-configure tool to synchronize the contents of one directory with another".