Microsoft OneDrive alternatives · File Storage
Open-source alternatives to Microsoft OneDrive
Microsoft OneDrive is not described as open source on its own site. 8 of the 45 other file storage and sync services in this directory are open source, according to their own sites.
Microsoft OneDrive has a free plan. Paid plans start at $1.99 per month, or $19.99 per year. All of them are free or have a free plan.
8 tools · Listings checked up to Nov 12, 2026 · Where the facts come from
How each one differs from Microsoft OneDrive
- Free plan · from €71.29/yr
Nextcloud
Open source, self-hosted file sync and collaboration platform
- Nextcloud starts at 71.29€ per user / year, excl. VAT (from 100 users). Microsoft OneDrive starts at $1.99 per month, or $19.99 per year.
- Only Nextcloud lists a Linux app.
- Nextcloud is open source and self-hostable, according to its own site.
- Nextcloud also covers video calls.
- Free plan · from €11.99/yr
Filen
End-to-end encrypted cloud storage from Germany with open source apps
- Filen starts at €11.99 per year for 100 GiB, or €1.99 per month for 200 GiB. Microsoft OneDrive starts at $1.99 per month, or $19.99 per year.
- Only Filen lists a Linux app.
- Filen is open source and end-to-end encrypted, according to its own site.
- Filen also covers notes.
- Free plan · from $3.99/mo
Proton Drive
End-to-end encrypted cloud storage from the maker of Proton Mail
- Proton Drive starts at $3.99 per month, billed yearly. Microsoft OneDrive starts at $1.99 per month, or $19.99 per year.
- Proton Drive is open source and end-to-end encrypted, according to its own site.
- Proton Drive also covers documents and spreadsheets.
- Free plan · from $8/mo
Seafile
Open-source file sync and share, self-hosted or in the cloud
- Seafile starts at $8 per user / month (Plus Cloud Team plan). Microsoft OneDrive starts at $1.99 per month, or $19.99 per year.
- Only Seafile lists a Linux app.
- Seafile is open source and self-hostable, according to its own site.
- Free plan
ownCloud
Open-source file sync and share you can host yourself
- ownCloud is open source and self-hostable, according to its own site.
- Free
Syncthing
Free, open source file sync directly between your own devices
- Syncthing is free. Microsoft OneDrive starts at $1.99 per month, or $19.99 per year.
- Only Syncthing lists a Linux app.
- Only Microsoft OneDrive lists a web app.
- Only Microsoft OneDrive lists iOS and Android apps.
- Free plan · from $11.99/mo
Internxt
Open source, zero-knowledge cloud storage with lifetime plans
- Internxt starts at $11.99 per month, billed annually (list price). Microsoft OneDrive starts at $1.99 per month, or $19.99 per year.
- Only Internxt lists a Linux app.
- Internxt is open source and end-to-end encrypted, according to its own site.
- Internxt can be bought with a one-time purchase.
- Free plan · from $12.00/mo
Cryptomator
Open-source encryption for the files you keep in any cloud
- Cryptomator starts at $12.00 per seat / month, billed yearly (Cryptomator Hub Standard). Microsoft OneDrive starts at $1.99 per month, or $19.99 per year.
- Only Cryptomator lists a Linux app.
- Only Microsoft OneDrive lists a web app.
- Cryptomator is open source and self-hostable, according to its own site.
Common questions
Is there an open-source alternative to Microsoft OneDrive?
Yes. Nextcloud, Filen, Proton Drive, Seafile, ownCloud, Syncthing, Internxt and Cryptomator are open source, according to their own sites.
Is Microsoft OneDrive open source?
Microsoft OneDrive is not described as open source on its own site. The listing was checked on Oct 9, 2026 against the pages it cites.
When was this checked?
Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Microsoft OneDrive: the alternatives its listing names first, then the tools that share the most features with it.