SpiderOak provides an easy, secure and consolidated online backup, storage, access, sharing & sync tool for Windows, macOS, and Linux (Ubuntu, Debian & Fedora). SpiderOak offers a different approach to online backup, synchronization, and sharing.

Seafile is described as 'Open-source file management and collaboration platform that goes beyond sync and share, offering extensible metadata, multi-level tagging, flexible file views, and AI-powered organization for smarter teamwork' and is a very popular Cloud Storage service in the backup & sync category. There are more than 100 alternatives to Seafile for a variety of platforms, including Web-based, Windows, Mac, Linux and iPhone apps. The best Seafile alternative is Nextcloud, which is both free and Open Source. Other great apps like Seafile are Dropbox, Google Drive, MEGA and Ente Photos.
SpiderOak provides an easy, secure and consolidated online backup, storage, access, sharing & sync tool for Windows, macOS, and Linux (Ubuntu, Debian & Fedora). SpiderOak offers a different approach to online backup, synchronization, and sharing.

End-to-end encrypted file synchronization and sharing on desktop and mobile, featuring admin controls, auditing, link-based sharing, two-factor authentication, offline access, granular permission management, and protection for sensitive workplace documents.




Icedrive is a cloud storage, backup and file sharing service with browser, desktop and mobile apps.
The Icedrive desktop application allows users to mount their cloud storage space as a real hard drive.


SyncTrayzor is a wrapper for Syncthing which allows Syncthing's window to be hidden in the tray area. SyncTrayzor has a built-in web browser to manage Syncthing without opening your browser. SyncTrayzor can be configured to automatically start at PC startup.

Pydio is the mature alternative to Dropbox and Box.com, to build your own box, on your own servers.




Open-source, privacy-focused cloud storage using zero-knowledge encryption and blockchain technology, provides secure file transfer, end-to-end encryption, free 10 GB plan, desktop and mobile support, full user control, and no data tracking or ads.



Store email, contacts, calendars, photos, music, books, apps and more in the cloud and access them on all your devices. iCloud also provides collaborative services for task management and notes and productivity apps for text documents, spreadsheets and presentations.




Lightweight file storage with a Rust backend and optimized binary for efficiency, offering responsive UI on desktop and mobile, simple setup, multilingual English and Spanish support, no PHP dependency, and designed for minimal resource use on home servers.

Puter is a privacy-first personal cloud that houses all your files, apps, and games in one private and secure place, accessible from anywhere at any time.

SparkleShare is a Free Open Source syncing tool. Its light, secure and easy to use. SparkleShare allows you to setup your own servers so you always keep control on your data.


Sync-in is a secure, open-source platform for file storage, synchronization, and team collaboration — designed to give organizations full control over their data and workflows, while remaining flexible enough for individual needs.




A Dropbox-like file manager that let you manage your data anywhere it is located: FTP, SFTP, WebDAV, Git, S3, Minio, Dropbox, Google Drive.



