WinFsp!

Cloud storage as hard disk

ExpanDrive is a Network file system client for Mac OS X and Microsoft Windows that facilitates mapping of local volume to any SFTP server the user can access. It also can connect to FTP, Amazon S3, RackSpace Cloud Files, OpenStack Swift Object Storage, DreamObjects, WebDAV, Dropbox, Google Drive and Box.com. When a server is mounted with ExpanDrive any program can read, write, and manage remote files (that is, files that only exist on the server) as if they were stored locally.

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 .

FUSE for OS X allows you to extend OS X's native file handling capabilities via third-party file systems. OSXFUSE is a successor to MacFUSE , which has been used as a software building block by dozens of products, but is no longer being maintained.

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. »

SFTP Net Drive lets you work with the remote file system as if it were a local disk drive, given that the remote system supports SFTP protocol.

Dokan SSHFS is a program that mounts remote file systems using SSH. Dokan SSHFS depends on Dokan Library which you can find on the application's website.

Filesystem in userspace implementation for MaxOSX

Callback File System is a programming library that lets you create virtual file systems and disks that let you expose and manage remote data as if they were files on the local disk.