Syncthing

Completely free and open-source

About Syncthing

Syncthing is a free, open-source file synchronization tool that works directly between devices without a central server. No cloud needed — your files sync peer-to-peer with strong encryption. Perfect for privacy-conscious users who want Dropbox-like sync without the cloud.

Highlights

• ✓ No cloud server needed — peer-to-peer sync
• ✓ Strong encryption and privacy by design
• ✓ Works across all major platforms
• ✓ No storage limits — only limited by your devices

Limitations

• ✗ Both devices must be online to sync
• ✗ No web interface for remote file access
• ✗ No built-in file sharing with external people

Replaces

Detailed Comparisons