11 Best Open Source Microsoft OneDrive Alternatives
A curated collection of the 11 best open source and self-hosted alternatives to Microsoft OneDrive in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Microsoft OneDrive in 2026? The top open-source alternative is Puter — Puter is a cloud-based desktop OS you run in the browser, with built-in apps, file storage, and support for hosting web apps and sites..
Other highly rated open-source Microsoft OneDrive alternatives include Spacedrive, Nextcloud and Ente.
Puter is a cloud-based desktop OS you run in the browser, with built-in apps, file storage, and support for hosting web apps and sites.
Puter is a cloud-based desktop OS you run in the browser, with built-in apps, file storage, and support for hosting web apps and sites.
A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.
A cross-platform file manager that unifies your devices into a seamless, organized digital workspace.
Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.
Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.
End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.
End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.
Filestash is an open-source file manager that integrates with multiple storage backends, authentication systems, and offers customization options.
Filestash is an open-source file manager that integrates with multiple storage backends, authentication systems, and offers customization options.
Open source file sync and sharing platform with custom properties, AI automation, collaborative editing, and enterprise-grade security for teams.
Open source file sync and sharing platform with custom properties, AI automation, collaborative editing, and enterprise-grade security for teams.
Self-hostable cloud file management and collaboration platform with an integrated office suite, zero-trust security, and GDPR compliance for teams and organizations.
Self-hostable cloud file management and collaboration platform with an integrated office suite, zero-trust security, and GDPR compliance for teams and organizations.
A document management platform that helps you archive, organize, and search files with email ingestion, tagging capabilities, and powerful search functionality.
A document management platform that helps you archive, organize, and search files with email ingestion, tagging capabilities, and powerful search functionality.
Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.
Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.
Open source encrypted data storage solution offering secure file sharing, collaboration tools, and on-premises deployment for professional teams.
Open source encrypted data storage solution offering secure file sharing, collaboration tools, and on-premises deployment for professional teams.
Firefiles is an open-source alternative to Dropbox that lets you manage files across multiple cloud storage providers through a single interface.
Firefiles is an open-source alternative to Dropbox that lets you manage files across multiple cloud storage providers through a single interface.
About Microsoft OneDrive
Secure cloud storage service that syncs files across devices, enables real-time collaboration, and integrates seamlessly with Microsoft 365 apps.