ownCloud is an open‑source file sync and share platform for on‑premises deployments. Looking for other cloud storage solutions—whether self‑hosted, hybrid, or fully SaaS? Below are 20 popular alternatives covering a range of features, security levels, and pricing models.
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A fork of ownCloud offering file sync, collaboration, and a rich app ecosystem; can be self‑hosted or run as a managed service.
High‑performance self‑hosted file sync and share solution with built‑in encryption and granular permission controls.
Enterprise‑grade file sharing platform with advanced workflow automation, SSO, and end‑to‑end encryption.
Integrated file sync and collaboration suite for Synology NAS devices, offering desktop/mobile clients and web UI.
Peer‑to‑peer file synchronization using BitTorrent technology; ideal for large files and offline sync without a central server.
Popular SaaS cloud storage with robust admin controls, team collaboration tools, and extensive third‑party integrations.
Google’s cloud storage service with real‑time Docs/Sheets/Slides collaboration and AI‑powered search.
Microsoft’s enterprise cloud storage tightly integrated with Office 365, Teams, and SharePoint.
Secure content management platform focused on enterprise compliance, workflow automation, and extensive API support.
Scalable object storage service with fine‑grained IAM policies; often used as the backend for custom file‑sharing apps.
Low‑cost, high‑performance S3‑compatible object storage with no egress fees, suited for backup and archiving.
Consumer‑focused cloud drive offering optional client‑side encryption, media streaming, and lifetime purchase plans.
End‑to‑end encrypted cloud storage with generous free tier and strong privacy guarantees.
Privacy‑first cloud storage with zero‑knowledge encryption, file versioning, and collaboration features.
Secure cloud storage built for regulated industries, offering zero‑knowledge encryption and compliance certifications.
Enterprise file sharing and workflow solution with granular permissions, e‑signatures, and integration with Microsoft 365.
Hybrid cloud content platform combining on‑premises storage with cloud sync, targeting large enterprises and compliance needs.
Simple, multi‑cloud file manager that unifies Dropbox, Google Drive, OneDrive, and its own storage under one interface.
Self‑hosted enterprise file sync and share solution with branding, mobile apps, and extensive security controls.
All‑in‑one cloud storage with backup, file sharing, and collaboration tools; offers both personal and business plans.