Best Open Source Alternatives to Sync.com

Compare the best free and open-source alternatives to Sync.com — 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

Sync.com

Proprietary SaaS

PricingSubscription

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

WebsiteVisit site

Sync.com alternatives compared

Open-source alternatives to Sync.com, 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