SpiderOak is a cloud-based backup and restore solution to protect against data loss.

VeraCrypt is an open-source utility used for on-the-fly encryption (OTFE). It can create a virtual encrypted disk within a file or encrypt a partition.

Tresorit is an online cloud storage service based in Switzerland and Hungary that emphasizes enhanced security and data encryption for Businesses.

Areca Backup is a personal file backup software developed in Java. It is released under the GNU General Public License (GPL) 2.

Tahoe-LAFS is a free and open, secure, decentralized, fault-tolerant, distributed data store and distributed file system.

rsync is a utility for efficiently transferring and synchronizing files across computer systems, by checking the timestamp and size of files.

Duplicati is a backup tool, not a file sync tool.

Déjà Dup is a simple backup tool. It hides the complexity of backing up the Right Way (encrypted, off-site, and regular) and uses duplicity as the backend. Fe…

Syncovery will copy your files the way you need it, Back up your data and synchronize PCs, Macs, servers, notebooks and online storage space.

PowerFolder provides file sync, share and backup solutions for companies in the cloud or as private cloud on-premise.