5 Free & Open Source Alternatives to Dropbox (2026)

Cloud storage, file sharing, and collaboration platform for individuals and teams. Offers file sync, sharing, productivity tools, and integrations for a streamlined workflow. Below are the best free replacements we've tested.

Dropbox

Freemium ★ ★ ★ ★ ★ 3.0

Cloud storage, file sharing, and collaboration platform for individuals and teams. Offers file sync, sharing, productivity tools, and integrations for a streamlined workflow.

Freemium
5 free options
Cloud Storage
3 / 5
Why people look for alternatives Dropbox has a free tier with limitations. Many users seek fully free or open-source alternatives that offer the same capabilities without paywalled features or usage caps.
Dropbox File Sharing Interface Homepage Screenshot 2026 Visit Dropbox →

Quick Comparison

Tool Pricing Best for Rating
Internxt
Freemium (Open Source) Prioritizing privacy, encryption, and open-source cloud storage. ★ ★ ★ ★ ★ 4.5
Nextcloud
Freemium (Open Source) Individuals/orgs valuing data privacy and on-premise storage. ★ ★ ★ ★ ★ 4.5
ownCloud
Freemium (Open Source) Businesses and institutions prioritizing data control and secure file collaboration ★ ★ ★ ★ ★ 4.5
Pydio
Freemium (Open Source) Enterprises for secure, self-hosted file sharing, data sovereignty. ★ ★ ★ ★ ★ 4.5
Seafile
Freemium (Open Source) Teams and organizations needing high-performance, self-hosted file sync and collaboration. ★ ★ ★ ★ ★ 4.5

Detailed Reviews

Internxt

A private cloud service suite offering secure, end-to-end encrypted, and 100% open-source cloud storage, backup, and other privacy-focused services for all devices.

★ ★ ★ ★ ★ 4.5
Freemium (Open Source) Best for: Prioritizing privacy, encryption, and open-source cloud storage.

Offers 1GB free storage. Paid plans include 1TB, 3TB, and 5TB, with annual and lifetime payment options.

3 screenshots — click to enlarge

Internxt File Storage Interface Homepage Screenshot 2026 Main interface
Internxt Pricing Screenshot 2026 Settings view

✓ Pros

  • Strong focus on privacy and security with advanced encryption (client-side, end-to-end).
  • 100% open-source code for independent verification and transparency.
  • Audited by cybersecurity firms.
  • Familiar and intuitive interface.
  • Available across multiple platforms (Windows, macOS, Linux, Android, iOS, web app).
  • Offers backups and antivirus features (for paid plans).
  • 30-day money-back guarantee and premium customer support.
  • GDPR friendly.
  • Lifetime plans available for cost savings.
  • Fast and reliable service.

✕ Cons

  • Annual plans can be expensive when not on sale.
  • Features (like backup) vary by plan and are not available on the free tier.
  • Some advanced features are planned for future updates.

Nextcloud

Nextcloud is an open-source, self-hosted content collaboration platform that provides file synchronization, sharing, and communication tools with a focus on privacy and security.

★ ★ ★ ★ ★ 4.5
Freemium (Open Source) Best for: Individuals/orgs valuing data privacy and on-premise storage.

Free to self-host (open-source software), with paid Enterprise subscriptions starting at €68.94/user/year for 100+ users.

3 screenshots — click to enlarge

Nextcloud Collaboration Dashboard Overview 2026 Main interface
Nextcloud Pricing Software Tool Screenshot 2026 Settings view

✓ Pros

  • Full control over data through self-hosting
  • Strong focus on privacy and security
  • Open-source with an AGPL license
  • Comprehensive file synchronization and sharing features
  • Integrated collaboration tools like Talk, Groupware, and Whiteboard
  • Available on mobile and desktop platforms
  • Offers enterprise-grade features for businesses

✕ Cons

  • Can be complex to set up and maintain for self-hosting without technical expertise
  • Potential for file size limitations with certain shared hosting environments
  • Enterprise plans have a high minimum user count (100 users)

ownCloud

ownCloud is an open-source, self-hostable content collaboration platform providing secure file sync, share, and data management for businesses. It offers full data control, robust security, and flexible deployment.

★ ★ ★ ★ ★ 4.5
Freemium (Open Source) Best for: Businesses and institutions prioritizing data control and secure file collaboration

Free basic version, with paid Standard and Enterprise subscriptions for teams/businesses starting from €1.85/user/year for large deployments or €5.24/user/month (min 25 users) for Standard.

3 screenshots — click to enlarge

ownCloud File Sharing Interface on Desktop with Collaboration Features 2026 Main interface
ownCloud File Sharing Interface Dashboard 2026 Settings view

✓ Pros

  • Strong security and full control over data
  • Open-source with AGPLv3 license, allowing code audits
  • Flexible deployment options: on-premises, cloud, hybrid, SaaS
  • Integrates with existing tools
  • User-friendly interface and mobile apps
  • Mature product with over 10 years of experience
  • Reliable file sync, sharing, and user management

✕ Cons

  • May have minor performance issues
  • Nextcloud (a fork) has a larger community and more features beyond core file collaboration
  • Focuses on enterprise, so consumer features might be limited compared to alternatives

Pydio

Pydio Cells is a secure, sovereign alternative to SaaS content platforms, built for enterprises requiring full control over their data. It offers high-performance file sharing, no-code automation, and collaboration features without compromising security or compliance.

★ ★ ★ ★ ★ 4.5
Freemium (Open Source) Best for: Enterprises for secure, self-hosted file sharing, data sovereignty.

Free for individual use (Pydio Cells Home), with paid Connect and Enterprise tiers starting at 3280€/year for 50 users.

3 screenshots — click to enlarge

Pydio File sharing and collaboration interface on homepage screenshot 2026 Main interface
Pydio Wire-Drive file sharing tool interface screenshot 2026 Settings view

✓ Pros

  • Secure document sharing and collaboration with a focus on data sovereignty.
  • Offers on-premise or private cloud deployment for full data control.
  • Robust administrative controls, granular sharing permissions, and activity monitoring.
  • Supports large file transfers (up to 5TB).
  • Open-source core (AGPLv3 for Cells Home).
  • Strong security features: multi-factor authentication, storage encryption, role-based access control, SSL/TLS protection.
  • Features like Virtual Data Room, Digital Asset Management, Document Management, and Knowledge Management.
  • Integrates with various identity providers (AD/LDAP, OAuth2/OIDC, SAML/Azure ADFS).
  • Cross-device accessibility (desktop, tablet, mobile) with offline access.
  • Local syncing for devices on the same network for faster transfers.

✕ Cons

  • Desktop sync client historically had a 2GB file size limitation (may be outdated for current versions, but was a reported issue).
  • Self-hosting requires initial effort.
  • Potentially slower sync speeds for very large files.
  • Reported instances of high CPU usage, possibly due to extensive logging.
  • Smaller open-source community/fewer contributions compared to some alternatives like ownCloud.

Seafile

Seafile is an open-source, self-hosted cloud storage and syncing solution known for fast and efficient file synchronization, especially with large files, and collaborative features like document editing, version control, and granular permissions.

★ ★ ★ ★ ★ 4.5
Freemium (Open Source) Best for: Teams and organizations needing high-performance, self-hosted file sync and collaboration.

Community Edition is free and open-source. Professional Edition has annual subscriptions (free for 3 users, then per-user pricing). Cloud from $8/user/month.

1 screenshot — click to enlarge

Seafile File Sync and Share Interface Screenshot 2026 Main interface

✓ Pros

  • Blazing fast file synchronization and low resource usage.
  • Git-like block-level sync for efficient updates and robust version control.
  • Libraries provide excellent organization and reliable syncing for large datasets.
  • Strong desktop clients (Windows, macOS, Linux) and virtual drive mapping (SeaDrive).
  • Supports end-to-end encryption.
  • Intuitive and easy-to-use interface.
  • Built-in Wiki, file locking, online editing, audit logs, mobile photo upload, secure share links, 2FA, virus scan, WebDAV.
  • Smart metadata, customizable views (table, gallery, Kanban, map), and multi-level file tagging.
  • Granular folder permissions.
  • Document review workflows and integrated online office editing.
  • Robustness and stability.

✕ Cons

  • Missing contact and calendar syncing, requiring additional software.
  • Steep pricing jump for the Professional Edition from 9 to 10 users.
  • Occasional syncing issues with very large numbers of small files.
  • Mobile apps (Android) do not automatically sync folders; iOS is limited to photos/videos auto-upload.
  • Older mentions of poor language translations (potentially outdated).

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