Best Open Source Alternatives to Microsoft OneDrive

Compare the best free and open-source alternatives to Microsoft OneDrive — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 6 alternatives

Microsoft OneDrive

Proprietary SaaS

PricingFreemium

Platformsweb, desktop, mobile, windows, macos, android, ios

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Microsoft OneDrive alternatives compared

Open-source alternatives to Microsoft OneDrive, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Syncthing	87,138	MPL-2.0	LinuxmacOSWindowsandroid	Yes	Jul 2026	Visit
Nextcloud	36,310	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit
Seafile	15,060	GPL-2.0	LinuxmacOSWindowsDocker	Yes	Jul 2026	Visit
ownCloud	8,826	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit
Pydio Cells	2,238	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Jul 2026	Visit
Cozy Cloud	1,272	AGPL-3.0	LinuxmacOSDockerWeb	Yes	Jul 2026	Visit

Top open-source Microsoft OneDrive alternatives

Syncthing87,138MPL-2.0

A continuous file synchronization program that syncs files between two or more computers securely.

LinuxmacOSWindowsandroidDocker

vs Microsoft OneDrive: a free, open-source option you fully control, licensed MPL-2.0.

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Nextcloud36,310AGPL-3.0

A suite of client-server software for creating and using file hosting services.

LinuxmacOSWindowsDockerWeb

vs Microsoft OneDrive: a free, open-source option you fully control, licensed AGPL-3.0.

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Seafile15,060GPL-2.0

A high-performance open source file sync and share system with drive scaling.

LinuxmacOSWindowsDockerWeb

vs Microsoft OneDrive: a free, open-source option you fully control, licensed GPL-2.0.

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ownCloud8,826AGPL-3.0

An open source file sync and share server platform for businesses.

LinuxmacOSWindowsDockerWeb

vs Microsoft OneDrive: a free, open-source option you fully control, licensed AGPL-3.0.

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Pydio Cells2,238AGPL-3.0

An enterprise-grade open-source document sharing and collaboration platform written in Go.

LinuxmacOSWindowsDockerWeb

vs Microsoft OneDrive: a free, open-source option you fully control, licensed AGPL-3.0.

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Best Open Source Alternatives to Microsoft OneDrive

Microsoft OneDrive

Microsoft OneDrive alternatives compared

Top open-source Microsoft OneDrive alternatives

More alternatives to Microsoft OneDrive

Cozy Cloud