The Best Open Source Microsoft OneDrive AlternativesTop Cloud Storage Services & File Sync Tools like Microsoft OneDrive

The best open source alternative to Microsoft OneDrive is Nextcloud. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft OneDrive and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Microsoft OneDrive are Syncthing, Filen, Proton Drive and ownCloud.

filter to find the best alternatives

Microsoft OneDrive alternatives are mainly Cloud Storage Services, but if you're looking for File Sync Tools or Online Backup Tools you can filter on that. Other popular filters include Linux, Self-Hosted + Open Source, Self-Hosted, Open Source, Mac and EU. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Microsoft OneDrive.

More about Microsoft OneDrive

Get a badge for your siteMicrosoft OneDrive alternatives page was last updated Apr 16, 2026

Nextcloud
1244 likes
On-premises solution offering file sync, universal data access and collaboration through Nextcloud Files, Talk, and Groupware. Ensures secure, controlled data storage for enterprise with powerful privacy tools including encryption, fine-grained access, and a bug bounty.
182 Nextcloud alternatives
Cost / License
Free
Open Source (AGPL-3.0)
Application typeApplication types
Cloud Storage
File Sync
Origin
Germany
EU
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
HUAWEI AppGallery
iPad
Self-Hosted
Snapcraft
Flathub
F-Droid
Raspberry Pi
Cloudron
Docker Hub
OpenAPK
Germany
EU
+5
Good alternative?Is Nextcloud a good alternative to Microsoft OneDrive?

|
17comments
Nextcloud vs Microsoft OneDrive Comments
Top Positive Comment by Guest · Oct 28, 2017
Open source, so possibility of new features + bug fixes added with pull requests. Storage on your own terms, specify where these items are stored.
Top Negative Comment by Nuncio Bitis · Jan 5, 2026
You have to know how to set up your own server. You don't have to do that with OneDrive.
Positive comment by docryan · Aug 12, 2025
I do not depend on Cloud. I make my own and have total control.
3 of 17 comments
Nextcloud is Free and Open SourceMicrosoft OneDrive is Freemium and Proprietary
Nextcloud is Privacy focused, Security-focused, Customizable and DecentralizedMicrosoft OneDrive is not according to our users
Syncthing
922 likes
Open-source, peer-to-peer service offering encrypted file synchronization, ensuring data privacy and user-autonomy without relying on cloud storage or central servers, suitable for various uses.
138 Syncthing alternatives
Cost / License
Free
Open Source (MPL-2.0)
Application type
File Sync
Origin
Sweden
EU
Platforms
Mac
Windows
Linux
BSD
Self-Hosted
Terminal
Cloudron
Termux
Sweden
EU
Good alternative?Is Syncthing a good alternative to Microsoft OneDrive?

|
2comments
Syncthing vs Microsoft OneDrive Comments
Negative comment by Nuncio Bitis · Jan 5, 2026
Not a cloud service. It also doesn't support syncing with mobile devices.
Positive comment by needleinajaystack · Apr 11, 2020
Decentralized self-hosting with good apps for every device
2 of 2 comments
Syncthing is Free and Open SourceMicrosoft OneDrive is Freemium and Proprietary
Syncthing is a File Sync Microsoft OneDrive is a Cloud Storage Service
Syncthing is Decentralized, Lightweight and Privacy focusedMicrosoft OneDrive is not according to our users
Filen
171 likes
Filen is a cutting-edge cloud storage provider that offers client-side, end-to-end, zero-knowledge encryption. Headquartered and operated entirely in Germany, Filen is at the forefront of combining comprehensive features with uncompromising privacy and security.
82 Filen alternatives
Cost / License
Freemium
Open Source (AGPL-3.0)
Application typeApplication types
Cloud Storage
File Sync
Origin
Germany
EU
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Debian
AppImage
Fedora
Germany
EU
+9
Good alternative?Is Filen a good alternative to Microsoft OneDrive?

|
1comment
Filen vs Microsoft OneDrive Comments
Positive comment by danielmichel · Jan 6, 2025
Allows you to synchronize specific folders, has a better phone app, grants slightly more storage for the same price, actually cares about privacy.
1 of 1 comments
Filen is Freemium and Open SourceMicrosoft OneDrive is Freemium and Proprietary
Filen is Privacy focused and LightweightMicrosoft OneDrive is not according to our users
Ad
Proton Drive
Offering comprehensive privacy with end-to-end encryption, Proton Drive allows users to store, synchronize, and share files across various devices through web, desktop, and mobile apps. Free storage up to 5 GB, service remains op...

https://proton.me
Learn More
Proton Drive
190 likes
Offering comprehensive privacy with end-to-end encryption, Proton Drive allows users to store, synchronize, and share files across various devices through web, desktop, and mobile apps. Free storage up to 5 GB, service remains open-source and audited, ensuring file content and access control.
94 Proton Drive alternatives
Cost / License
Freemium
Open Source (GPL-3.0)
Application typeApplication types
Cloud Storage
Online Backup
Origin
Switzerland
Platforms
Mac
Windows
Online
Android
iPhone
Android Tablet
iPad
Tor
Switzerland
+7
Good alternative?Is Proton Drive a good alternative to Microsoft OneDrive?
ownCloud
876 likes
Self-hosted option for secure file sync, sharing, calendars, contacts, and mail supporting mobile, desktop, web access and external storage, real-time collaboration, password-protected links, document editing, anti-virus scanning, and LDAP integration.
239 ownCloud alternatives
Cost / License
Freemium
Open Source
Application typeApplication types
Cloud Storage
File Sync
Origin
United States
Platforms
Mac
Windows
Linux
Android
iPhone
Blackberry
Android Tablet
iPad
Self-Hosted
Software as a Service (SaaS)
Raspberry Pi
Cloudron
United States
+9
Good alternative?Is ownCloud a good alternative to Microsoft OneDrive?

|
3comments
ownCloud vs Microsoft OneDrive Comments
Negative comment by Nuncio Bitis · Jan 5, 2026
OwnCloud is just NextCloud with a different name. You need to know how to set up your own server, which is not centralized.
Positive comment by Guest · Aug 12, 2016
With Nextcloud you control your own data, you are limited by your own hardware and don't have to trust Microsoft with your data.
Positive comment by Guest · Aug 16, 2016
Onwcloud is a file sharing server.
3 of 3 comments
ownCloud is Freemium and Open SourceMicrosoft OneDrive is Freemium and Proprietary
Koofr
155 likes
Koofr is a safe, secure and simple way to store, backup and share your documents, photos, videos and more. It offers up to 10 GB of free safe storage for your files with affordable upgrades and options to connect multiple cloud accounts.
210 Koofr alternatives
Cost / License
Freemium
Open Source (MIT)
Application typeApplication types
Cloud Storage
File Sync
Origin
Slovenia
EU
Platforms
Mac
Linux
Online
Android
iPhone
Android Tablet
Windows Phone
iPad
Linux Mobile
Google Chrome
Rust
F-Droid
Software as a Service (SaaS)
Docker
Chromium
Mozilla Firefox
Slovenia
EU
+4
Good alternative?Is Koofr a good alternative to Microsoft OneDrive?
Seafile
199 likes
Open source cloud platform for organizations with self-hosting, device file synchronization, sharing, versioning, secure encrypted storage, admin controls, web access, audit logging, and support for desktop and mobile clients for secure collaboration.
137 Seafile alternatives
Cost / License
Freemium
Open Source
Application typeApplication types
Cloud Storage
File Sync
Origin
China
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Self-Hosted
Software as a Service (SaaS)
China
+4
Good alternative?Is Seafile a good alternative to Microsoft OneDrive?

|
1comment
Seafile vs Microsoft OneDrive Comments
Negative comment by Nathaniel Blackburn · Jan 15, 2026
Not available for personal use so not a 1:1 alternative.
1 of 1 comments
Seafile is Freemium and Open SourceMicrosoft OneDrive is Freemium and Proprietary
Seafile is Privacy focusedMicrosoft OneDrive is not according to our users
Tuta Drive
29 likes
End-to-end encrypted cloud storage with quantum-resistant cryptography protects files from all third-party access, including service providers, ensuring strict confidentiality for individuals and businesses, seamless web and mobile access, and compliance with EU data laws.
62 Tuta Drive alternatives
Cost / License
Free
Open Source (GPL-3.0)
Application typeApplication types
Cloud Storage
Online Backup
Origin
Germany
EU
Platforms
Online
Germany
EU
+5
Good alternative?Is Tuta Drive a good alternative to Microsoft OneDrive?
kDrive
77 likes
kDrive is a Swiss online storage service that respects its users' privacy and makes storing, sharing & collaborating on files a breeze.
Cost / License
Freemium
Open Source (GPL-3.0)
Application typeApplication types
Cloud Storage
File Sync
Origin
Switzerland
Platforms
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
F-Droid
Switzerland
+9
Good alternative?Is kDrive a good alternative to Microsoft OneDrive?
Sync-in
21 likes
Sync-in is a secure, open-source platform for file storage, synchronization, and team collaboration — designed to give organizations full control over their data and workflows, while remaining flexible enough for individual needs.
73 Sync-in alternatives
Cost / License
Free
Open Source (AGPL-3.0)
Application typeApplication types
File Sync
Cloud Storage
Origin
France
EU
Platforms
Mac
Windows
Linux
Self-Hosted
Cloudron
Docker
Docker Hub
npm
YunoHost
France
EU
+6
Good alternative?Is Sync-in a good alternative to Microsoft OneDrive?
IPFS
177 likes
IPFS is a global, versioned, peer-to-peer filesystem. It combines ideas from Git, BitTorrent, Kademlia, SFS, and the web. It is like a single bittorrent swarm, exchanging git objects. IPFS provides an interface as simple as the HTTP web, but with permanence built in.
70 IPFS alternatives
Cost / License
Free
Open Source
Application typeApplication types
File Sync
Anonymizing Network
Origin
United States
Platforms
Mac
Windows
Linux
BSD
Self-Hosted
Firefox
United States
+1
Good alternative?Is IPFS a good alternative to Microsoft OneDrive?
Hoodik
31 likes
Lightweight, self-hosted encrypted cloud storage enabling fast uploads and downloads, easy Docker install, secure public link sharing, browser-side cryptography, searchable metadata, and low RAM footprint. Designed for privacy, performance, and file management.
Cost / License
Free
Open Source
Application typeApplication types
Cloud Storage
File Sync
Origin
Croatia
EU
Platforms
Android
iPhone
Self-Hosted
Docker
Croatia
EU
+7
Good alternative?Is Hoodik a good alternative to Microsoft OneDrive?

12 of 56 Microsoft OneDrive alternatives

The Best Open Source Microsoft OneDrive AlternativesTop Cloud Storage Services & File Sync Tools like Microsoft OneDrive

Alternatives list

Nextcloud

Cost / License

Application typeApplication types

Origin

Platforms

Nextcloud vs Microsoft OneDrive Comments

Syncthing

Cost / License

Application type

Origin

Platforms

Syncthing vs Microsoft OneDrive Comments

Filen

Cost / License

Application typeApplication types

Origin

Platforms

Filen vs Microsoft OneDrive Comments

Proton Drive

Cost / License

Application typeApplication types

Origin

Platforms

ownCloud

Cost / License

Application typeApplication types

Origin

Platforms

ownCloud vs Microsoft OneDrive Comments

Koofr

Cost / License

Application typeApplication types

Origin

Platforms

Seafile

Cost / License

Application typeApplication types

Origin

Platforms

Seafile vs Microsoft OneDrive Comments

Tuta Drive

Cost / License

Application typeApplication types

Origin

Platforms

kDrive

Cost / License

Application typeApplication types

Origin

Platforms

Sync-in

Cost / License

Application typeApplication types

Origin

Platforms

IPFS

Cost / License

Application typeApplication types

Origin

Platforms

Hoodik

Cost / License

Application typeApplication types

Origin

Platforms