Open-source alternatives guide · Updated 2026

Best open-source alternatives to Microsoft OneDrive

Compare the best free and open-source alternatives to Microsoft OneDrive — 10 verified projects with explicit catalog relationships. Inspect licenses, GitHub activity, self-hosting signals, and migration fit before you switch.

10verified alternatives
4self-hosted signals
3categories

Only explicit alternative relationships are shown—never inferred competitor claims.

Overview

This guide compares 10 verified open-source alternatives to Microsoft OneDrive, including Puter, Spacedrive, Ente, and Seafile.

Projects appear across Infrastructure, Security & Privacy, and Content & Collaboration. 4 options include a self-hosting signal — see the self-hosted catalog. Ranking follows public GitHub stars and recorded momentum—not vendor marketing. Compare projects side by side, then confirm license fit, migration effort, and operational ownership before adopting any option.

Organizations evaluating Nextcloud, Seafile, and related open storage stacks instead of OneDrive.

Migration tip: Separate OneDrive personal files from SharePoint team libraries. Confirm Office Online / desktop co-authoring expectations before swapping storage only.

Strongest repository-activity signal: Puter · Jump to ranking · 42.7K stars · self-hostable

About Microsoft OneDrive

OneDrive is Microsoft’s cloud storage tied to Microsoft 365. Open alternatives focus on self-hosted sync and sharing when Teams/SharePoint coupling or data residency constraints push teams off Microsoft cloud storage.

Ranked open-source alternatives to Microsoft OneDrive

Compare capabilities, licensing, and ownership model. Stars help with discovery; they are not a security or product-fit guarantee.

Puter

Open-source alternative to Microsoft OneDrive

InfrastructureAGPL-3.0Self-hosted

🌐 The Internet Computer! Free, Open-Source, and Self-Hostable.

🌐 The Internet Computer! Free, Open-Source, and Self-Hostable. Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Infrastructure teams
Deployment: Self-hostable
License: AGPL-3.0
Activity: Updated 26 hours ago

Key capabilities

open-source

javascript

cloud good-first-issue

Spacedrive

Open-source alternative to Microsoft OneDrive

Security & PrivacyLicense not declared

Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.

Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust. Review the official repository, license, release activity, a

Best for: Security teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 3 months ago

Key capabilities

typescript

open-source

rust cross-platform

Ente

Open-source alternative to Microsoft OneDrive

Security & PrivacyAGPL-3.0

💚 End-to-end encrypted cloud for everything.

💚 End-to-end encrypted cloud for everything. Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Security teams
Deployment: Inspectable source
License: AGPL-3.0
Activity: Updated 28 hours ago

Key capabilities

Seafile

Open-source alternative to Microsoft OneDrive

ChinaContent & CollaborationLicense not declared

Beyond file syncing and sharing, a new way to organize your files with extensible file properties and flexible views

Beyond file syncing and sharing, a new way to organize your files with extensible file properties and flexible views Review the official repository, license, release activity, and

Best for: Knowledge teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 3 days ago

Key capabilities

markdown file-sharing wiki cloud-storage

Filestash

Open-source alternative to Microsoft OneDrive

InfrastructureAGPL-3.0Self-hosted

:file_folder: Universal File Storage Client

:file_folder: Universal File Storage Client Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Infrastructure teams
Deployment: Self-hostable
License: AGPL-3.0
Activity: Updated 2 days ago

Key capabilities

git file-sharing

azure

OpenCloud

Open-source alternative to Microsoft OneDrive

InfrastructureApache-2.0

🌤️ OpenCloud is the open source platform for file management, sharing and collaboration. Simple and sovereign.

🌤️ OpenCloud is the open source platform for file management, sharing and collaboration. Simple and sovereign. Review the official repository, license, release activity, and deplo

Best for: Infrastructure teams
Deployment: Inspectable source
License: Apache-2.0
Activity: Updated 28 hours ago

Key capabilities

Github Actions

JavaScript

Papra

Open-source alternative to Microsoft OneDrive

InfrastructureAGPL-3.0Self-hosted

The minimalistic document archiving platform.

The minimalistic document archiving platform. Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Infrastructure teams
Deployment: Self-hostable
License: AGPL-3.0
Activity: Updated 30 hours ago

Key capabilities

self-hosted app documents document

Sync-in

Open-source alternative to Microsoft OneDrive

Security & PrivacyAGPL-3.0Self-hosted

Sync-in Server · Sovereign platform for file storage, sharing, synchronization, and collaboration.

Sync-in Server · Sovereign platform for file storage, sharing, synchronization, and collaboration. Review the official repository, license, release activity, and deployment documen

Best for: Security teams
Deployment: Self-hostable
License: AGPL-3.0
Activity: Updated 3 days ago

Key capabilities

Twake Drive

Open-source alternative to Microsoft OneDrive

Content & CollaborationAGPL-3.0

Twake Drive Web App

Twake Drive Web App Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Knowledge teams
Deployment: Inspectable source
License: AGPL-3.0
Activity: Updated 27 hours ago

Key capabilities

file-manager drive

JavaScript

Github Actions

#10

Firefiles

Open-source alternative to Microsoft OneDrive

Content & CollaborationAGPL-3.0

The open‑source alternative to Dropbox. ⚡️

The open‑source alternative to Dropbox. ⚡️ Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Knowledge teams
Deployment: Inspectable source
License: AGPL-3.0
Activity: Updated Nov 3, 2025

Key capabilities

How to choose a Microsoft OneDrive alternative

Map must-have capabilitiesList the workflows in Microsoft OneDrive you cannot drop during migration.

Verify the licenseConfirm it fits your use, distribution, and compliance model. Browse license briefs.

Run a proof of conceptTest real data, integrations, clients, and failure modes. Use Compare for side-by-side checks.

Plan ownershipAssess upgrades, backups, support, and an exit path. Read when self-hosting is worth it.

Frequently asked questions about Microsoft OneDrive alternatives

What is the best open-source OneDrive alternative?

Nextcloud is the usual full replacement for sync and share. Pair it with OnlyOffice or Collabora if you also need browser document editing close to Microsoft 365.