e-nautia!

SpiderOak provides an easy, secure and consolidated online backup, storage, access, sharing & sync tool for Windows, Mac OS X, and Linux (Ubuntu, Debian & Fedora). SpiderOak offers a different approach to online backup, synchronization, and sharing. This difference is not just measured in our zero-knowledge privacy policy - the first one ever employed in this setting - but also in our flexible design in handling data from all platforms (Mac, Windows, Linux) and locations (external drives, network volumes, USB keys) in one centralized account. »

Files on Yandex.Disk won't get lost if your phone or computer breaks. You'll have enough storage space for your most precious photos and important documents.

Rclone is a command line program to sync files and directories to and from:- Google Drive- Amazon S3- Openstack Swift / Rackspace cloud files / Memset Memstore- Dropbox- Google Cloud Storage- Amazon Cloud Drive- Microsoft One Drive- Hubic- Backblaze B2- Yandex Disk- The local filesystem

Minimalist Drag & drop file sharing JS applicationDrag, drop and share

Cloud storage as hard disk

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

CmisSync synchronizes files to/from any enterprise file server.It looks very much like Dropbox, but synchronizes with an existing file server instead of synchronizing with Dropbox's server.Can synchronize with Alfresco, Documentum, FileNet, SharePoint, Nuxeo, NemakiWare, eXo Platform, and any other CMIS-compliant server. Not cloud-based: CmisSync can work on local networks without Internet.

win-sshfs is a SSH(SFTP) filesystem made using Dokan and SSH.NET library that allows you to mount remote computers via SFTP protocol like windows network drives .

ASUS WebStorage offers online storage with auto data backup for nearly 3 computers, auto data synchronization, and data sharing amongst others.

#### REQUIRES A SYNOLOGY NAS ####

Unlike a typical file transfer client, WebDrive allows you to open and edit server-based files without the additional step of downloading the file. Using a simple wizard, you assign a network drive letter to any FTP, SFTP or WebDAV Servers. By connecting through a virtual drive, there is no need to learn a separate client interface. You access and edit files on the server the same way that you interact with files on your local PC. WebDrive can also map a drive letter to corporate SharePoint servers, as well as Amazon S3, Google Drive and DropBox. »