SpiderOak Alternatives for Mac OS X

ownCloud is a free and opensource file sync and share app which is self hosted.

MEGA is the cloud-based file hosting solution.

Box is an online file sharing and content management service.

SugarSync is a cloud service that enables active synchronization of files across computers and other devices.

CrashPlan backup software offers the best way to back up and store personal, business & enterprise data securely - offsite, onsite & online in the Cloud.

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

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

Tonido is remote access and home server software for network-attached storage.

TeamDrive is a software manufacturer that has specialized in creating solutions for secure collaborative work over the Internet.

Yandex.Disk is a cloud service created by Yandex that lets users store files on “cloud” servers and share them with others online. The service is based on syncing data between different devices. Yandex.Disk was launched in English in June 2012.

Seafile is a file-hosting software system. Files are stored on a central server and can be synchronized with personal computers and mobile devices through apps. Files on the Seafile server can also be accessed directly via the servers web interface.

Koofr offers safe EU based cloud storage with 2 GB free cloud storage space for life and options to connect multiple cloud accounts.

Syncplicity is a file share and synchronization service developed by Syncplicity Inc. The service lets users store and synchronize files between computers. It supports Microsoft Windows and macOS.

OwnDrive is easy to use free online storage service for businesses, professionals, and individuals to store, backup, collaborate and share files with others.

Nomadesk is a leading provider of file sharing, storage and synchronization software.

Syncany is a cloud storage and filesharing application with a focus on security and abstraction of storage.

Storage Made Easy provides a hybrid Cloud File Server Enterprise File Share and Sync Solution.

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

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

vBoxxCloud makes file sharing easy and keeps your information private and secure in the Netherlands or on-premises.

InterPlanetary File System (IPFS) is a protocol designed to create a permanent and decentralized method of storing and sharing files.

pCloud provides a cloud storage solution for businesses of any size.

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

AeroFS is an enterprise file sync and share & collaboration software.

Pulse is a free (as in freedom), secure, and distributed file synchronisation engine.

Jungle Disk is an online backup software service.

OpenDrive is an online cloud storage solution.

Twin Docs is an application developer company who has developed their own app which helps you file your document.

An open, secure, and lightweight platform for your files and data.

CmisSync allows you to synchronize any CMIS-compliant ECM server with your local PC.

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.

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

Carbonite is an online backup service.

pyget is a p2p file sharing without the need for either internal or external plugins.

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.

FilesAnywhere is a provider of remote file storage and file sharing for consumers and corporations.