Obsidian vs Tana——どっちが優秀？
Obsidianを選ぶべき人: 自分のデータを自分で持ちたい、パーソナルなナレッジグラフを作りたいパワーユーザーや開発者向け
Tanaを選ぶべき人: 構造化された検索可能なノートで、自分だけのパーソナルOSを構築したいパワーユーザー
私たちの見解: Obsidian for simplicity, Tana for power users.
| Obsidian | Tana | |
|---|---|---|
| 料金 | Free for personal use | Commercial $50/user/year | Free for personal use | Tana Pro $10/mo |
| 機能 | Local-first markdown files, Bidirectional linking, Graph view, Plugin ecosystem (1000+), Full offline support | Supertag-based schema system, Live search nodes, Command node automations, AI integration built-in, Outliner with structured data |
| こんな人に最適 | Power users and developers who want to own their data and build a personal knowledge graph | Power users who want to build their own personal operating system with structured, queryable notes |
| 学習コスト | 難しい | 難しい |
本当の違い
Both offer free tiers, so the real question is what you get when you start paying.
Obsidian stands out with Local-first markdown files and Bidirectional linking. Tana counters with Supertag-based schema system and Live search nodes.
Obsidian's Achilles heel: no real-time collaboration — syncing across devices requires paid add-on or diy solution. Tana's: steep learning cliff — the supertag concept is powerful but takes days to grok properly. Pick whichever weakness you can live with.
結論
If you value local-first markdown files and 自分のデータを自分で持ちたい、パーソナルなナレッジグラフを作りたいパワーユーザーや開発者向け, go with Obsidian. If 構造化された検索可能なノートで、自分だけのパーソナルosを構築したいパワーユーザー matters more, Tana is your pick. Neither is a bad choice — but one will fit your workflow better.