Thank you all for your consultation. For now, I have installed Self-hosted Livesync. I will use it for a while and give it a try.
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Look into syncthing. Not sure about encryption tho and I'm not in a position to check RN.
+1 for Syncthing, been using it to sync a tablet, a phone and a pc without much problem. Obsidian usually makes a separate note when there is a synch issue, so at least you don't need to worry about losing your data.
Perhaps with the addition of Tailscale if they need to sync while out & about too. E2E encryption shouldn't matter here, since these are p2p connections.
iirc syncthing is encrypted, which matters because it will pass your data through a relay if it can't connect directly.
Why would you need Tailscale for syncthing?
For me it's never worked outside of my home
Just set this up a month ago. Setting up syncthings is 100% the way to go.
Andi said Syncthing:
Based on recent sources, Syncthing emerges as the most recommended free solution for synchronizing Obsidian vaults across devices[^1][^2]. This open-source tool provides real-time syncing without third-party cloud storage, encrypts data end-to-end, and works across Windows, macOS, Linux, and Android platforms[^3].
Key advantages of Syncthing for Obsidian sync:
- Completely free with no storage limits
- Direct device-to-device synchronization
- No cloud storage required
- End-to-end encryption
- Cross-platform support (except iOS)
- Real-time syncing capabilities
Setup involves:
- Installing Syncthing on all devices
- Connecting devices using their unique IDs
- Creating a shared folder for the Obsidian vault
- Accepting the shared folder on other devices
For iOS users, alternatives include:
- iCloud sync (Apple ecosystem only)[^1]
- Git-based solutions using Working Copy or iSH[^1]
- Remotely Save plugin with cloud storage services[^1]
While Syncthing requires more technical setup than paid solutions, it offers the most robust free synchronization method with privacy protection and no recurring costs[^2].
[^1]: How to Sync Obsidian Across All Your Devices (Including Free Methods) [^2]: Free Obsidian Sync: The Best Way to Sync Your Notes Across Devices [^3]: You Can Sync Obsidian Notes Between Your PC and Phone for Free, Here's How
I've been using this for 2 years. Rock solid with no issues.
Sync is so fast I can see myself typing if implement the same document on different computers. No issues with windows, Linux and android clients
If you're not able to find an adequate solution for Obsidian, you may want to investigate TriliumNext Notes.