Top Alternatives to Seafile

Dropbox is an easy to use freemium cloud storage solution. It has a client sync utility for multiple platforms.

Google drive is Google's cloud storage solution for storing files in the cloud.

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

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

Microsoft OneDrive is a cloud-based storage solution from Microsoft.

MEGA is the cloud-based file hosting solution.

Box is an online file sharing and content management service.

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

Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized.

Resilient, fast and scalable file sync software for enterprises and individuals.

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

SparkleShare is open-source client software that provides cloud storage and file synchronization services.

Nextcloud is a suite of client-server software for creating file hosting services and using them. It is functionally very similar to the widely used Dropbox, with the primary functional difference being that Nextcloud is free and open-source, and thereby allowing anyone to install and operate it without charge on a private server.

FileCloud is a file sharing, backup, and remote management solution.

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

Pydio, formerly known as AjaXplorer, is an open-source file-sharing and synchronisation software that runs on the user's own server.

iCloud is a cloud storage and cloud computing service.

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

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

Amazon Drive, formerly known as Cloud Drive, is a cloud storage application managed by Amazon.

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

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

SyncTrayzor is the tray utility, looks like a normal Windows program, and has menus and suchlike, and a big area where Syncthing's web interface is displayed.

git-annex is a distributed file synchronization system written in Haskell.

Librevault is an Open source zero-knowledge peer-2-peer file sync designed with privacy in mind.

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.

Icedrive is a cloud storage provider with inbuilt encryption to data in cloud.

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

Zaclys ownCloud provider is a hosted ownCloud provider.

CloudBerry Box provides bi-directional synchronization of data across remote computers.