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).

Free alternatives to Obsidian Sync

Swap Obsidian Sync for Syncthing or Logseq and stop paying $48/yr.

2open source2run on Linux2in Arch/AUR

Prices and project data checked Oct 17, 2026 · How we check

$48/yr Sync Verified on obsidian.md, Oct 17, 2026

2 alternatives

Syncthing

Desktop app About Syncthing →

Open source · MPL-2.0 Linux Arch/AUR

syncthing/syncthing89.4k★last push Oct 13, 2026checked Oct 17, 2026

Install

$ sudo pacman -S syncthing

Logseq

Desktop app About Logseq →

Open source · AGPL-3.0 Linux Arch/AUR

logseq/logseq45.2k★last push Oct 15, 2026checked Oct 17, 2026

Install

$ yay -S logseq-desktop-bin

$ flatpak install flathub com.logseq.Logseq

At a glance

Free alternatives to Obsidian Sync compared
Alternative	License	Linux	AUR	Self-host	Stars
Syncthing	MPL-2.0 open source	Yes	Yes	No	89.4k★
Logseq	AGPL-3.0 open source	Yes	Yes	No	45.2k★

Obsidian Sync alternatives: questions

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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