Free, open-source alternatives to Obsidian Sync
Paid sync for Obsidian notes. 3 apps you can run yourself instead of Obsidian 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.
Nextcloud
Access and share your files, calendars, contacts, mail and more from any device, on your terms.
Seafile
File hosting and sharing solution primary for teams and organizations.
Side by side
Why replace Obsidian Sync?
Obsidian 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 Obsidian Sync?
Syncthing is the closest open-source replacement for Obsidian Sync in our list. Nextcloud and Seafile are worth a look too, depending on what you need.
Can I self-host an alternative to Obsidian 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.