Box is described as 'Secure cloud-based platform with workflow automation, AI insights, file sharing, offline access, 10GB free storage, e-signatures, and 1,500+ integrations' and is a very popular Cloud Storage service in the backup & sync category. There are more than 100 alternatives to Box for a variety of platforms, including Web-based, Windows, Mac, iPhone and Android apps. The best Box alternative is Nextcloud, which is both free and Open Source. Other great apps like Box are Dropbox, Google Drive, MEGA and Filen.
Fast and very secure digital asset management platform with a user-friendly interface. Allows you to customize download links with your brand's style and logo. Controlled access to all your digital files-anytime, anywhere,on any device and more.
On-premises solution offering file sync, universal data access and collaboration through Nextcloud Files, Talk, and Groupware. Ensures secure, controlled data storage for enterprise with powerful privacy tools including encryption, fine-grained access, and a bug bounty.
Self-hosted keeps your data secure. Works great with desktop, mobile and web clients. Lots of add-on apps for mail, calendar, RSS feeds/news, music players, diagrams and more. Share files with third parties. Setup your own inbound file drops. Integrate it with Libre Office or Only Office for a full online office suite. There is more functionality released in every version. A clear winner.
Synchronize and access files across multiple devices with secure cloud storage. Features include 2GB free storage, two-factor authentication, selective sync, offline access, shared folders, and built-in viewer, supporting various platforms and languages.
A file storage and synchronization service integrated with Google Docs suite, enabling seamless collaboration across devices. Offers scalable storage, real-time updates, offline access, and extensive sharing options across Mac, PC, and mobiles.
This cloud-storage service offers end-to-end encryption, selective synchronization, and shared folders without ads. Supports offline access, two-factor authentication, encrypted backup, a command-line interface, and dark mode for comfortable use.
Filen is a cutting-edge cloud storage provider that offers client-side, end-to-end, zero-knowledge encryption. Headquartered and operated entirely in Germany, Filen is at the forefront of combining comprehensive features with uncompromising privacy and security.
Offering comprehensive privacy with end-to-end encryption, Proton Drive allows users to store, synchronize, and share files across various devices through web, desktop, and mobile apps. Free storage up to 5 GB, service remains open-source and audited, ensuring file content and access control.
Self-hosted option for secure file sync, sharing, calendars, contacts, and mail supporting mobile, desktop, web access and external storage, real-time collaboration, password-protected links, document editing, anti-virus scanning, and LDAP integration.
NextCloud is a is a suite of client-server software for creating file hosting services that can be hosted on your own or on a shared server. It is a cloud service fully owned and controlled by you.
Manage and share files securely across devices with OneDrive. It offers 5 GB free storage, direct Office integration, automatic backups, and file sync for seamless collaboration. Ideal for personal and business use with advanced data protection tools.
What I have to dhare is Microsoft's mirror is more avaiable being automatic with a Windows O/S with their free email acct.
Best Cross party implementation
Koofr is a safe, secure and simple way to store, backup and share your documents, photos, videos and more. It offers up to 10 GB of free safe storage for your files with affordable upgrades and options to connect multiple cloud accounts.
End-to-end encrypted cloud storage with quantum-resistant cryptography protects files from all third-party access, including service providers, ensuring strict confidentiality for individuals and businesses, seamless web and mobile access, and compliance with EU data laws.
Open source cloud platform for organizations with self-hosting, device file synchronization, sharing, versioning, secure encrypted storage, admin controls, web access, audit logging, and support for desktop and mobile clients for secure collaboration.
kDrive is a Swiss online storage service that respects its users' privacy and makes storing, sharing & collaborating on files a breeze.
Switzerland
Germany
EU
United States
New Zealand
Slovenia
China
Self-hosted, and much more than just file storage (calendar, contacts, ...)