Free, open-source alternatives to Resilio Sync
Peer-to-peer file sync between your devices. 3 apps you can run yourself instead of Resilio Sync, sorted by how well they replace it. Each one is open source, so your data stays with you.
SyncthingBest match
Syncthing is an open source peer-to-peer file synchronisation tool.
Unison
Unison is a file-synchronization tool for OSX, Unix, and Windows.
Seafile
File hosting and sharing solution primary for teams and organizations.
Side by side
Why replace Resilio Sync?
Resilio Sync works, but your data lives in someone else's account, the price can change at any time, and features can disappear. An open-source app you run yourself is yours: you choose where it runs, who can see the data, and when to update.
Questions
What is the best free alternative to Resilio Sync?
Syncthing is the closest open-source replacement for Resilio Sync in our list. Unison and Seafile are worth a look too, depending on what you need.
Can I self-host an alternative to Resilio Sync?
Yes. All 3 apps on this page are open source and can run on your own server, usually with Docker, or on a managed host that installs them for you.