If you want your notes to be files you actually own — plain Markdown on your own device, readable by any text editor, no account required — choose Obsidian. If you want one shared workspace where notes, databases, and projects live together and teammates can edit the same page in real time, choose Notion. That's the honest short answer, and for most people the deciding factor isn't the feature list. It's where the data lives.
Everything else flows from that one design decision. Obsidian is a local-first app that reads and writes plain text files sitting in a folder you control. Notion is a cloud service you reach through apps that talk to its servers. Below we walk through what that means for privacy, offline work, collaboration, longevity, and cost — calmly, without pretending either choice is wrong.
Key takeaways
- Obsidian stores notes as plain Markdown files on your device. Notion stores your workspace on its servers, with apps as the window into it.
- Obsidian's core app is free (proprietary) for both personal and commercial use; paid subscriptions exist only for optional sync and publishing services. Notion is freemium, with subscription tiers for teams and advanced features.
- Notion is the stronger pick for teams: real-time collaboration, shared databases, and permissions are built into its core.
- Notion added an offline mode in 2025, but it works page by page and has limits. Obsidian is offline by default because there's no server in the loop.
- Neither app is open source. If that's a requirement, look at Joplin or Anytype instead.
- Data portability strongly favors Obsidian: your notes are already portable files. Leaving Notion means exporting, and complex databases don't always export cleanly.
The core difference: files you hold vs. a service you access
Obsidian treats your notes as a folder of Markdown files — a "vault" — on your computer or phone. The app is an interface on top of those files. Delete Obsidian tomorrow and your notes remain, openable in any editor, forever. Linking, graph view, canvas, and a large ecosystem of community plugins all operate on that same plain-text foundation.
Notion inverts the model. Your pages, wikis, and databases live in Notion's cloud, and the desktop, mobile, and web apps are views into that hosted workspace. The upside is enormous: everything is always in sync, shareable with a link, and editable by many people at once. The trade-off is dependency — your workspace exists inside a service, on the service's terms.
Neither model is "correct." They optimize for different fears: Obsidian for what if the service disappears or I lose control of my data, Notion for what if my team's knowledge is scattered and out of sync.
Privacy and security, without the fear-mongering
With Obsidian, notes don't leave your device unless you add a sync mechanism yourself. The optional paid Sync service is end-to-end encrypted, meaning the vendor can't read the contents of what it syncs. For journals, health notes, or anything genuinely sensitive, that architecture is hard to beat.
Notion encrypts data in transit and at rest and maintains the compliance certifications enterprises expect. But it is not end-to-end encrypted: content is processed on Notion's servers, which is precisely what enables search, sharing, collaboration, and AI features. That's a normal, well-documented trade-off for cloud workspaces — fine for most work, worth pausing over for your most private writing.
We verify installers, permissions, and vendor security posture for both apps as part of our methodology, and neither raises red flags. This is a question of architecture and threat model, not of one vendor being careless.
Offline work and speed
Obsidian works offline because there's nothing to be online for. Files open instantly, search is local, and a flaky connection changes nothing.
Notion spent years as an online-only tool, and in 2025 it shipped a real offline mode on desktop and mobile. It helps a lot — you can mark pages as available offline and keep working through a flight. But it's page-by-page rather than everything-by-default, sub-pages need marking separately, and large databases only partially sync for offline use. If you're regularly disconnected, Obsidian's model simply has less to go wrong.
Collaboration and structure
This is where Notion earns its popularity. Real-time co-editing, comments, mentions, granular sharing, and databases that double as project trackers make it a genuine team operating system, not just a notes app. Templates and views let non-technical teammates build useful tools without code.
Obsidian is fundamentally a single-player experience. You can share a vault through a synced folder, but simultaneous editing isn't what it's built for, and there are no page-level permissions. If your notes are a team's notes, Notion — or something in our note-taking roundup that's collaboration-first — is the better home.
Obsidian vs. Notion at a glance
| Obsidian | Notion | |
|---|---|---|
| Where notes live | Local Markdown files on your device | Notion's cloud servers |
| Pricing model | Free (proprietary) core app; optional paid sync/publish subscriptions | Freemium; subscription tiers for teams and extras |
| Offline | Fully offline by default | Offline mode on desktop/mobile, page-by-page with limits |
| Collaboration | Minimal; single-player by design | Excellent: real-time editing, permissions, shared databases |
| Databases / structure | Plain notes plus plugin-based structure | First-class databases, views, and templates |
| Data portability | Your files, already portable | Export required; complex content can export imperfectly |
| End-to-end encryption | Yes, on its optional Sync service | No (encrypted in transit and at rest) |
Cost, honestly
Obsidian's app is free for personal and commercial use, with no feature gates. You pay only if you want the vendor's optional subscription add-ons: Sync for encrypted cross-device syncing and Publish for putting notes on the web. Many people run Obsidian for free indefinitely, syncing through their existing cloud storage instead.
Notion follows a classic freemium arc: a capable free tier for individuals, then subscription tiers that unlock team features, larger file handling, admin controls, and AI capabilities. Solo users often never hit the free tier's walls; teams almost always end up on a paid plan. Check the official sites for current pricing — both models shift over time.
What if you want open source?
Neither Obsidian nor Notion is open source, and for some readers that settles it. The closest credible options: Joplin (open source) covers local-first Markdown notes with built-in encrypted sync options, and Anytype (open source) aims at the Notion-style structured workspace with local-first storage. Our list of Notion alternatives walks through the wider field.
How to decide
Choose Obsidian if: your notes are personal, you value ownership and longevity over convenience, you work offline often, or you enjoy shaping a tool with plugins. Choose Notion if: you're organizing work with other people, you want databases and documents in one place, or you'd rather have structure handed to you than build it. Plenty of people run both — Obsidian for private thinking, Notion for shared work — and that's a perfectly reasonable answer, as our Notion vs Obsidian comparison explores in more depth.
Frequently asked questions
Can I use Obsidian and Notion together?
Yes, and many people do: a common split is Obsidian for personal notes, journaling, and long-term knowledge, with Notion for team projects and shared documentation. Since Obsidian writes plain Markdown, moving a finished note into Notion is usually a simple paste or import.
Does Notion work offline now?
Yes, with caveats: since 2025 the desktop and mobile apps can keep pages available offline, and changes sync when you reconnect. It works page by page rather than for your whole workspace, the browser version still needs a connection, and very large databases only partially sync.
Is Obsidian really free, even for work?
Yes — the core app is free for personal and commercial use, and a commercial license exists but is optional, purchased by organizations that want to support development. The vendor makes money from optional Sync and Publish subscriptions, not from gating features.