ownCloud

Community Edition is free. Standard support from ~$6/user/month (min 25 users).

About ownCloud

ownCloud is a mature open-source file sharing and collaboration platform launched in 2010, now serving over 1.5 million users. It provides file sync, folder sharing, document collaboration, and desktop/mobile apps. The Community Edition is fully free and open-source, while Standard and Enterprise subscriptions add professional support and advanced features.

Highlights

• ✓ Battle-tested platform with 1.5M+ users since 2010
• ✓ 1,100+ community contributors and actively maintained
• ✓ Full desktop and mobile apps for all platforms

Limitations

• ✗ Open-core model restricts some features to Enterprise edition
• ✗ Minimum 25 users required for paid support plans
• ✗ Less feature-rich than Nextcloud for non-file-sharing use cases

Replaces

Detailed Comparisons