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FreeFileSync is a free Open Source software to synchronize files and synchronize folders available for Windows, Linux and Mac OS X. It is designed to be easy to use while having nice visual feedback along the way.

Duplicati is the only portable backup program, able to send backups in encrypted form to another computer or SkyDrive using one of several methods (WebDAV, FTP, SFTP/SCP/SSH, Amazon S3, Rackspace CloudFiles, USB disk, Windows network share). Time scheduler e.g. for auto-backups every 3rd Monday on 10 a.m.German, Danish, English, French, Portugese. Can also be startet from command-line. Support for snapshots via VSS and LVM: Backup of open files. Duplicati is a rewrite of Duplicity/ftplicity, written for Windows (in managed C# .NET). It also runs on Linux using the Mono framework.The lastest portable version in all 5 languages can be downloaded as a zip file from https://github.com/duplicati/duplicati/releases »

Déjà Dup is a simple backup tool. It hides the complexity of doing backups the 'right way' (encrypted, off-site, and regularly) and uses Duplicity as the backend. It features support for local or remote backup locations, including Amazon S3.

WinMerge 2011 series is a fork of the original WinMerge application that compiles without ATL/MFC dependencies to enable zero-budget developers to build WinMerge from sources using Visual C++ Express editions.

Code Compare is a free file and folder merge tool from Devart. New version of Code Compare comes with significantly increased startup speed:- Standalone application start is two times faster;- Opening a file comparison document in Visual Studio is two times faster;- Considerable acceleration of the first environment start after installing Code Compare.

Mozy is an online backup service that offers a set-it-and-forget-it solution for backing up all of the important files on your computer. With MozyPro, there is no extra hardware to buy, no setup fees, and with our automatic backups, no additional management required to oversee it all.

Copywhiz enhances your file copy experience in Windows. It offers more flexibility when copying and backing up files by letting you choose which type of files to copy & which to ignore.

Bacula is a set of Open Source, enterprise ready, computer programs that permit you (or the system administrator) to manage backup, recovery, and verification of computer data across a network of computers of different kinds. Bacula is relatively easy to use and efficient, while offering many advanced storage management features that make it easy to find and recover lost or damaged files. In technical terms, it is an Open Source, enterprise ready, network based backup program.

Share all your files at FileServe and never have to worry about disk space or bandwidth again. Share files with your friends, family, customers, or thousands of people worldwide*. SAFE, SECURE & EASY.*-Fileserve can now be used only to upload and retrieve files that you have uploaded personally.

Diffuse is a small and simple text merge tool written in Python. With Diffuse, you can easily merge, edit, and review changes to your code.

Tarsnap is a secure online backup system for Linux, BSD, OS X, and other UNIX-like operating systems.