Notion vs Obsidian

Obsidian stores every note as a plain Markdown file on your own device. You can open them in Notepad, back them up to a USB drive, or migrate to another app in five minutes — no export needed. Notion stores everything in its own proprietary database in the cloud. If Notion shuts down, raises prices, or gets acquired, your data is at their mercy. For a decade-long knowledge archive, that's a real risk.

Notion was built for teams from day one. Shared workspaces, real-time editing, comments, and permission controls are all native. Obsidian has zero built-in collaboration — it's a solo instrument. You can hack around this with shared vaults on Dropbox, but it's clunky and breaks easily. If you ever need to hand a document to someone else, Notion is the obvious choice.

Obsidian's killer feature is the ability to link any note to any other note and then visualize the entire web of connections in a graph view. Over time, patterns emerge between ideas you wrote months apart. Notion technically supports linking between pages, but it's an afterthought — there's no graph view, no backlinks panel, and no culture of using it that way. If you want a second brain, Obsidian is the only serious option here.

Obsidian works completely offline by design — your files are local, so there's nothing to load. Notion's offline mode is notoriously unreliable. Open it on a plane and you might get a cached version, or you might get a spinner. For anyone who writes on trains, in coffee shops with bad WiFi, or during travel, this is a daily frustration with Notion that Obsidian simply doesn't have.