Top Alternatives to 4sync

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.

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.

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

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.

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.

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.

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.

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.