# Free alternatives to Obsidian Sync

> Obsidian Sync (Sync) costs $48 a year. Free alternatives: Syncthing and Logseq. Data checked 2026-10-17.

- Page: https://stoprenting.dev/apps/obsidian-sync/
- Category: Notes & Docs (https://stoprenting.dev/categories/notes-and-docs/)
- Vendor: Obsidian
- Plan: Sync
- Price: $4/month, $48/year
- Billing: billed annually ($5 billed monthly)
- Price quote from the vendor's page: "Sync $4 USD Per user, per month, billed annually $5 USD ... billed monthly"
- Price source: https://obsidian.md/pricing (checked 2026-10-17)

## Alternatives

### Syncthing

- Website: https://syncthing.net
- Repository: https://github.com/syncthing/syncthing (89,380 stars, last push 2026-10-13)
- License: MPL-2.0
- Open source: yes, OSI-approved license
- Type: desktop app
- Linux: Arch extra: syncthing
- Self-hostable: no
- Install: `sudo pacman -S syncthing`
- More: https://stoprenting.dev/alternatives/syncthing/
- Checked: 2026-10-17

### Logseq

- Website: https://logseq.com
- Repository: https://github.com/logseq/logseq (45,234 stars, last push 2026-10-15)
- License: AGPL-3.0
- Open source: yes, OSI-approved license
- Type: desktop app
- Linux: AUR: logseq-desktop-bin; Flathub: com.logseq.Logseq
- Self-hostable: no
- Install: `yay -S logseq-desktop-bin`, `flatpak install flathub com.logseq.Logseq`
- More: https://stoprenting.dev/alternatives/logseq/
- Checked: 2026-10-17

## FAQ

### Is there a free alternative to Obsidian Sync?

Yes. The 2 free alternatives are Syncthing (open source, MPL-2.0) and Logseq (open source, AGPL-3.0).

### How much does Obsidian Sync cost?

Obsidian Sync's Sync plan costs $4 a month, which is $48 a year (billed annually ($5 billed monthly)). Source: the official pricing page at obsidian.md, checked Oct 17, 2026.

### Which Obsidian Sync alternatives run on Linux?

Syncthing (Arch extra: syncthing) and Logseq (AUR: logseq-desktop-bin; Flathub: com.logseq.Logseq).

### Can you self-host a Obsidian Sync alternative?

Syncthing and Logseq are desktop apps that run on your own machine, so there's nothing to host.

### Are these Obsidian Sync alternatives open source?

Yes. All 2 use OSI-approved open-source licenses: Syncthing (MPL-2.0) and Logseq (AGPL-3.0).

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Source: Stop Renting (https://stoprenting.dev). Methodology: https://stoprenting.dev/methodology/