Obsidian: a free home for connected notes
Obsidian is a note-taking app that keeps your notes on your device and connects them with links, helping a collection of documents become a personal knowledge base.
Free for personal and commercial use
How I use Obsidian
I keep project notes, decisions and operating instructions in Obsidian. It is the foundation of my Second Brain, with qmd helping me find the relevant material.
What makes it different?
Your notes live in local files. Links and a graph connect ideas across the collection.
Competitors
- Notion: A shared workspace for documents, projects and databases
- Logseq: Linked notes built around an outliner
Product source checked 2026-09-08.
Who it is for
Connected notes and personal knowledge.
Who can claim it?
Use is subject to the provider’s supported platforms, account requirements and current terms.
What the free software includes, and what costs extra
Obsidian Sync and Publish are optional paid services. The free app does not include those hosted services.
Billing and renewal
The core app has no recurring licence charge. Optional Sync and Publish subscriptions are billed separately.
- Tax basis
- Not applicable to the free software or plan
- Card required
- Provider’s signup terms
- Expiry
- No fixed offer end date established.
- Public research date
- 8 Sept 2026
- Source checked
- 8 Sept 2026
Further official evidence
More about Obsidian and its offers