Obsidian Sync alternatives: 3 free & open-source picks
Curated, verified, and actually free. No trials, no crippled tiers. Star counts and last-activity dates checked by hand, not scraped and forgotten.
Syncs the vault directly between computers; iPhones remain the awkward relative.
licenseMPL-2.0
runson your machine
installInstall a native package or binary on every device, exchange device IDs, and share the vault folder
dataThe original Markdown files and attachments remain as normal files in selected folders on each peer; Syncthing keeps its configuration and index database locally
the catch vs Obsidian SyncIt has no central always-available history or recovery service, devices need overlapping availability to propagate changes, and iPhone/iPad support depends on third-party clients.
setupEvery device needs a client and pairing, at least one peer must be online to receive changes, and there is no official iOS client
facts verified 2026-08-11
Your own cloud, complete with the privilege of maintaining your own cloud.
licenseAGPL-3.0+
runsyour server
installNextcloud All-in-One Docker stack or a supported web-server/PHP/database installation, plus sync clients
dataUser files in a server data directory or object store; accounts, shares, file cache, versions, and other metadata in the database, with optional local synced copies
the catch vs Obsidian SyncIt can sync the folder, but it is not Obsidian-aware, does not provide the same conflict handling and version recovery by default, and makes you operate the cloud service.
setupA practical deployment needs an always-on host, Docker or a full PHP/database stack, domain and TLS, storage planning, backups, and upgrades
facts verified 2026-08-11
Five free gigabytes and excellent Apple plumbing; everyone else gets a side door.
licenseproprietary, free
runstheir cloud
installEnable iCloud Drive in Apple-device settings; install iCloud for Windows from the Microsoft Store
dataOrdinary vault Markdown files and attachments in Apple's iCloud storage, mirrored or downloaded into Finder, Files, or File Explorer on signed-in devices
the catch vs Obsidian SyncIt is Apple-centric and lacks Obsidian Sync's vault-aware version history, deleted-file recovery, selective vault syncing and end-to-end-encrypted service across all supported platforms.
setupAn Apple Account is required, free storage is shared with all iCloud data, and Android/Linux have no native iCloud Drive sync client
facts verified 2026-08-11
last updated 2026-08-11 · no votes, no pay-to-list · just what's real
| tool | license | running it | platforms | stars | active |
|---|---|---|---|---|---|
| Syncthing | MPL-2.0 | one-click install | macos, windows, linux, cli | 87,300 | 2026-08 |
| Nextcloud | AGPL-3.0+ | self-host, real ops | web, macos, windows, linux, ios, android, self-hosted | 36,300 | 2026-08 |
| iCloud Drive | proprietary, free | they host it | web, macos, windows, ios | — | — |
They pay for no-drama sync across devices while keeping Obsidian's local-first model. If none of that applies to you, any pick above saves $60 a year.
Is there a free alternative to Obsidian Sync?
Yes: Syncthing, Nextcloud, iCloud Drive. Every tool on this page is either open source or genuinely free to use long-term: no trials, no crippled tiers.
Should I just build my own Obsidian Sync?
Our verdict is SÍ. If you already accept local Markdown files, syncing folders across devices is a solved problem; the hard part is not the app, it is conflict-free convenience. If you'd rather build, the exact one-shot prompt is free at puedovibecodearlo.app/obsidian-sync.
