Areca is an Open Source file backup software developped in Java.

Its main features are :
* Archives Compression (Zip format)
* Archives Encryption (Triple DES encryption algorithm)
* Source file filters (by extension, subdirectory or regular expression)
* Incremental / Full backup support
* Archives content explorer
* File history explorer : Areca keeps track of your files history (creation/modifications/deletion).
* Backup simulation
* As of date recovery : Areca allows you to recover your archives (or single files) as of a specific date.
* Transaction mechanism : All critical processes (such as backups or merges) support a transaction mechanism (with commit / rollback management) which guarantees your backups integrity.
* Users actions history : Areca keeps an history of all users actions (archives deletion, merges, backups, recoveries).
* Archives indicators : Areca computes a lot of indicators for you, which will help you in the everyday management of your archives.

Two user interfaces are available :
* A command-line interface (useful for backup process automation)
* A graphical user interface (useful for general administration tasks)