4sync Alternatives for Online

Dropbox is a leading cloud storage and file synchronization service that enables users to store, share, and access files from virtually anywhere with an internet connection. It offers a user-friendly interface, seamless cross-platform synchronization, and a suite of features designed to enhance collaboration and productivity.

Google Drive is a powerful cloud storage service that offers secure file storage, synchronization, and collaboration. It integrates seamlessly with Google's suite of applications, providing a comprehensive productivity and file management platform accessible from any device.

Box is a leading cloud content management and file sharing platform designed for businesses of all sizes. It provides secure storage, robust collaboration tools, and seamless integration with popular business applications, empowering teams to work efficiently and securely from anywhere.

MediaFire offers robust cloud storage, file synchronization, and file sharing capabilities, providing users with ample space and features for managing digital content online.

Yandex.Disk is a powerful cloud storage service offering seamless file synchronization, backup, and sharing. It provides ample storage space, robust security features including encryption, and includes useful integrations like an online office suite. With support for various platforms and WebDAV, it's a versatile solution for managing your digital assets.

Koofr is a secure, EU-based cloud storage service offering a generous free tier and the unique ability to connect multiple existing cloud accounts from providers like Google Drive, Dropbox, and OneDrive. It serves as a centralized hub for all your digital files, enhancing accessibility and management across platforms.

vBoxxCloud offers secure file sharing and collaboration with robust security features, keeping your data private and accessible from anywhere.

Amazon Drive, now superseded by Amazon Photos for photo/video and Amazon S3 for other file types, was a cloud storage service providing online backup, file synchronization, and sharing capabilities. It offered various storage plans, including unlimited photo storage for Amazon Prime members.

Twindocs is a secure cloud-based document management system designed for both individuals and organizations. It offers advanced encryption, robust synchronization capabilities, and a suite of features for organizing, sharing, and protecting your digital documents.

Zaclys ownCloud provider offers a robust, hosted ownCloud solution for secure cloud storage, file synchronization, and collaboration. It emphasizes privacy and control over your data, providing a feature set for individuals and organizations to manage files, calendars, and contacts securely online.