FreeFileSync
FreeFileSync is a free Open Source software to synchronize files and synchronize folders available for Windows, Linux and Mac OS X.
ViceVersa does File Synchronization, File Replication, File Backup and File Comparison. It can automatically verify data using a CRC32 checksum.
viceversa does file synchronization, file replication, file backup and file comparison. it can automatically verify data using a crc32 checksum.
viceversa lets you synchronize files, replicate folders, perform backups and do file and folder comparisons like never before: innovative, fast and timesaving. viceversa works between computers, e.g. laptop, desktop, workstation, server, over network lan, wan, vpn, usb, and with any type of storage media including external hard disk, zip disk, usb flash drive, cdrw, dvd, nas (network attached storage). viceversa unique sidebyside view quickly shows you the latest status of your files and gives you complete control over your data. you get easy file backup software with flexible file archiving, bidirectional file sync software, automatic file and folder replication (=file mirroring), crc file comparison and file verification to make sure your replica is still the same. viceversa can copy open files without closing the program you are working on. this includes outlook pst files, outlook express, quickbooks databases, word and excel documents, sql databases. with compression and encryption, time synchronization, file archiving, file revision and versioning, viceversa delivers the flexibility you need to keep your data safe and protected.
Productivity Developer Tools Utilities Networking and Admin File Sharing Backup and Sync File Management
backup-and-restore file-synchronization folder-sync encrypted-backup file-compare compressed-backup versioning file-replication mirroring
FreeFileSync is a free Open Source software to synchronize files and synchronize folders available for Windows, Linux and Mac OS X.
Free Open Source Mac OS X Windows Linux Debian CentOS Ubuntu openSUSE
Dvdisaster stores data on your CD/DVD/BD including additional error correction data to protect against data loss due to disk surface degradation (read errors).
Free Open Source Linux
Code Compare is a free file and folder merge tool from Devart.
Freemium Windows
Uranium is a light and reliable backup software for the protection of your personal and business data. An all-in-one solution able to suit all your needs, available in both free and commercial editions.
Freemium Windows
Intuitive, multi-platform application for two and three-way visual file and folder comparison. Use DeltaWalker to compare (diff) and merge files and to compare and synchronize folders.
Commercial Mac OS X Windows Linux
rdiff-backup backs up one directory to another, possibly over a network.
Free Open Source Windows Linux