CrashPlan Alternatives for Mac OS X

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

MediaFire is a file hosting, file synchronization, and cloud storage service.

Acronis True Image is a software product produced by Acronis that provides data protection including, backup, archive, access and recovery.

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

Backblaze is a pioneer in robust, scalable low cost cloud backup and storage services. Personal online backup to enterprise scale data storage solutions.

Mozy is an online backup service for both Windows and macOS users.

iDrive is a computer system used to control most secondary vehicle systems in many current BMW cars.

Memopal is a cloud-based storage application and service that enables users to store and synchronize computer files and share files and folders with others using the Internet.

BackupPC is a free disk-to-disk backup software suite with a web-based frontend. The cross-platform server will run on any Linux, Solaris, or UNIX-based server. No client is necessary, as the server is itself a client for several protocols that are handled by other services native to the client OS.

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

Carbonite is an online backup service.

Arq is a backup software platform.

Livedrive is the complete Backup and Sync solution. Backup an unlimited amount of files on your PC or Mac.

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

Bacula is an open-source, enterprise-level computer backup system for heterogeneous networks.

Degoo is a cloud storage platform.