Top Alternatives to iCloud

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.

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

MEGA is the cloud-based file hosting solution.

SugarSync is a cloud service that enables active synchronization of files across computers and other devices.

Outlook.com is a free personal email service from Microsoft.

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

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

Seafile is a file-hosting software system. Files are stored on a central server and can be synchronized with personal computers and mobile devices through apps. Files on the Seafile server can also be accessed directly via the servers web interface.

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.

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.

OwnDrive is easy to use free online storage service for businesses, professionals, and individuals to store, backup, collaborate and share files with others.

Cozy is cloud platform for to Store, sync, and share your data.

Tresorit is an online cloud storage service based in Switzerland and Hungary that emphasizes enhanced security and data encryption for Businesses.

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.

iDrive is a computer system used to control most secondary vehicle systems in many current BMW cars.

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.

Memotoo sync all your contacts from Gmail, Facebook, phone, Thunderbird, Outlook, etc in a single address book.

fruux is a cross-platform synchronization service.

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.