Notion vs Obsidian

Overview

Notion is an all-in-one workspace for notes, documents, databases, wikis, and project management with real-time collaboration and rich content blocks. Obsidian stores notes as local Markdown files with bidirectional linking, graph view, and a rich plugin ecosystem. It works offline and your data stays on your file system.

Key Differences

Data Ownership: Obsidian stores plain Markdown on your file system — no account needed, no vendor lock-in, readable by any editor. Notion stores data in its cloud; exporting is lossy for complex databases. Collaboration: Notion is built for teams with real-time editing, comments, and sharing permissions. Obsidian is primarily personal — Sync enables multi-device access but real-time collaboration is absent. Structure: Notion provides databases with views (table, board, calendar, gallery, timeline), formulas, and relations. Obsidian uses free-form Markdown with bidirectional links and tags — better for unstructured thinking. Performance: Obsidian reads local files and searches 10K notes near-instantly. Notion performance degrades with large workspaces as everything loads from servers. Extensibility: Obsidian community plugins run locally with full file system access. Notion integrations are API-based and more limited.

Verdict

Choose Notion for team wikis, project management, and collaborative workspaces. Choose Obsidian for personal notes, research, and knowledge management where data ownership, privacy, and portability matter.