What is Obsidian?
Obsidian, created in 2020, is a note-taking application that stores notes as local Markdown files rather than in a proprietary cloud format. Its documentation describes a graph view for linking notes, a plugin API (TypeScript) for community-built extensions, and optional paid services (Sync, Publish) layered on top of the free core app. It is a small, self-funded team rather than a venture-backed company, and it does not publish a general web API; extensibility is through local plugins rather than a hosted API.
Read the full overview
Sources checked 27 September 2026: official website, documentation, pricing.
Key capabilities
- Local-first storage: notes saved as plain Markdown files on-device.
- Linking and graph view: backlinks and a visual graph of note connections.
- Plugin ecosystem: a large community plugin and theme catalog via a local TypeScript API.
- Optional paid add-ons: Sync (cross-device), Publish (web publishing) and a commercial-use license.
Personal knowledge management, Markdown-based note-taking and plugin-extensible workflows are the core areas. Confirm plugin trustworthiness and backup practices, since plugins run with local file-system access.
Shortlist Obsidian for individual or team knowledge bases where owning plain-text files locally matters more than built-in real-time collaboration. Teams that need native multi-user editing or a hosted API should compare against cloud-first knowledge tools.
Local-first storage protects against vendor lock-in but puts backup and sync responsibility more on the user unless the paid Sync service is used; test the plugin set actually needed before standardizing a team on it.
Technical details
- Access
- See vendor
- Source model
- Other license
- Founded
- 2020
- Headquarters
- Remote
- Pricing model
- Freemium
- API
- Not specified
- Website
- obsidian.md ↗
Official resources
What to verify for your environment
Start from the users, systems and operating responsibilities the tool needs to support.
- Confirm current features, licensing and support terms with the publisher.
- Validate deployment, data location, access control, backup and recovery requirements.
- Test integrations, export paths and a representative operational workflow before committing.
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