Obsidian is a powerful knowledge base app that works on top of a local folder of plain text Markdown files. It features a graph view for visualizing connections and supports AI plugins for enhanced note-taking.
Category
Productivity
Subcategory
Knowledge Management
Free Tier
Free for personal use with full local features
Paid Plans
Sync $10/month, Publish $10/month, Catalyst one-time $25+
API Cost
Not available yet
Desktop AppiOS AppAndroid App
Obsidian Trust & Security Report
Certifications, AI-training posture, and security controls, with sourced proof.
●Third-Party Security Audits
Verified against Obsidian's own trust and security pages. See the full report for sourced proof →
Region
Mixed: local (on user device) for core app; Sync/Publish services may be processed and stored outside Canada
Trains on Data
No
Self-hostable
No
Personal knowledge management and second brainResearch note-taking with bidirectional linksLong-form writing and academic workVisualizing connections between ideasLocal-first private note storage
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