⚡ Quick Verdict:
- 価格: Notion is free to start, with paid plans from $10/user/month. Obsidian is free for personal use, with Sync from $4/month.
- 最適な用途: Notion suits teams that want an all in one workspace. Obsidian suits solo thinkers who want a private knowledge base.
- 主な違い： Notion runs in the cloud with databases and collaboration. Obsidian stores obsidian notes as local Markdown files on your machine.
- Our pick: Notion for most users. It covers note taking, project management, and team work on a single platform.
Notion and Obsidian both promise to help you stay organized.
しかし、彼らはそこに至るまでに全く異なる道を辿る。
Notion is an all in one workspace built for teams and databases.
Obsidian is a private メモアプリ built around local files and plugins.
One keeps all the content in the cloud. The other keeps it on your device.
This guide breaks down both, so you pick the right one.
概要
This Notion vs Obsidian comparison covers pricing, features, and daily use.
We also break down who each tool works best for.
Our sources include published specs, documentation, and G2 reviews.
Notion leans toward productivity apps for teams. Obsidian leans toward personal knowledge management.
By the end, you will know which fits your personal life or your small teams.
Notionとは何ですか?
Notion is an all in one workspace for notes, tasks, and projects.
It puts note taking, project management, and databases on a single platform.
You build each notion page from blocks like 文章, tables, and boards.
Notion AI can draft, summarize, and answer questions inside your notion workspace.
Co-founder Chris Prucha helped shape its 早い block-based design.
For example, Notion users range from students to large teams.
🏆 Winner: Notion
Notion offers notes, to do lists, and databases in one place. It fits both personal use and small teams. The free version is enough for most individual users.
Notionの価格
Here is what Notion costs in 2026. Let’s break it down.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | $0 | 個々のユーザーと個人的なメモ |
| プラス | 1ユーザーあたり月額10ドル | 小規模チームと フリーランサー |
| 仕事 | 月額20ドル/ユーザー | 分析を必要とする成長中のチーム |
| 企業 | カスタム価格設定 | Large orgs wanting a dedicated success manager |
Pricing verified January 2026.
無料トライアル: The free plan is open-ended, so no card is needed to start.
返金保証: Paid plans bill monthly or yearly and can be cancelled anytime.
📌 注記： その 仕事 plan adds private team spaces and can invite 250 guests. The Enterprise plan adds unlimited page history and custom pricing.
⚠️ 警告： The ai feature (Notion AI) is a paid add-on. It costs extra per user on top of your plan.
Notionの主な利点
Here is what makes Notion worth considering:
- オールインワンのワークスペース: Notes, wikis, and project management tools live in one app. These productivity tools cut down on juggling other apps.
- Flexible databases: View データ as a table, board view, list, timeline, or calendar. Kanban boards make tasks easy to track.
- テンプレート: Notion offers over 20,000 templates for journal entries, planners, and meeting notes. They help you create pages fast.
- 統合: It connects to Slack, Google Drive, Google Docs, and Google Calendar. You can even embed Google Maps in a page.
- コラボレーション： Teams can assign tasks, set due dates, and leave comments in real time. It is a true collaborative workspace.
- ノーションAI： 内蔵の AIツール draft text, fix grammar, and summarize notes across your entire workspace.
What Our Team Noticed
私たちの 作家 signed up for Notion and spent several days building pages. Here is what stood out:
Notionの長所と短所
✅ メリット
- Combines notes, tasks, and databases in one single platform
- Free plan is enough for individual users and personal notes
- Huge template library helps you stay organized fast
- Strong real-time collaboration for small teams
❌ デメリット
- Many advanced features can feel overwhelming for new users
- Needs an internet connection for full syncing
- Notion AI costs extra on top of your plan
オブシディアンとは何ですか？
Obsidian is a note taking app that stores obsidian notes as local Markdown files.
All your notes sit in a folder called an obsidian vault.
Because the files stay on your local machine, your data never leaves your device.
This makes Obsidian a strong fit for personal knowledge management.
Plain Markdown also keeps your notes readable well into the future.
You link atomic notes together to build a web of relevant information.
It suits solo writers and researchers who want to learn faster.
黒曜石
Obsidian keeps your knowledge base in local files you control. AI powered plugins add chat and search without cloud lock-in. It is free for personal use.
オブシディアンの価格
The Obsidian app is free for personal use. Paid tiers add sync and licenses.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 個人的 | 無料 | Individual note takers |
| 同期 | 月額4ドル | Using different vaults across デバイス |
| 公開 | 月額8ドル | Sharing notes to the web |
| 触媒 | $25 (one-time) | Early access supporters |
| コマーシャル | 年間50ドル | Business and team use |
Pricing verified January 2026.
無料トライアル: No trial is needed. The core app is free with no account required.
返金保証: Sync and Publish bill monthly and can be cancelled anytime.
📌 注記： You can use most ai tools and plugins for free. Costs come mainly from optional Sync or a language model API key.
⚠️ 警告： Some ai powered plugins need an OpenAI or Anthropic key. Those API calls are billed separately by the provider.
Key Benefits of Obsidian
Here is what makes Obsidian worth considering:
- Local llm support: You can run local models and local machine learning on your own hardware. This keeps ai questions private.
- スマート接続: This plugin links related notes using semantic search. It surfaces relevant information across the entire vault.
- Copilot and chat mode: Copilot adds vault chat and a chat mode that answers from vault notes. For instance, it can summarize an article and give context aware answers with retrieval augmented generation.
- Powered templates: The Text ジェネレータ plugin and other ai powered plugins act like a trusted sidekick for generating structured content.
- Fun utility plugins: Extras like Cloud Atlas, Date Magic, and Math Maestro add real time calculations and quick date magic to your workflow.
- Full offline access: Everything works without an internet connection, so you keep access to your own thoughts anywhere.
What Our Team Noticed
Our writer set up an obsidian vault and tested several plug ins. Here is what stood out:
Obsidian Pros & Cons
✅ メリット
- Notes stay in local files you fully own
- Works offline with no internet connection needed
- Free for personal use with a huge plugin library
- Local llm options keep ai questions private
❌ デメリット
- Advanced features need manual setup and can feel overwhelming
- Not built for real-time team collaboration
- Sync across devices is a paid add-on
機能比較
Ready to dive into a detailed comparison of Notion vs Obsidian? We will look at nine key features to help you decide which fits your workflow.
| 特徴 | 概念 | 黒曜石 |
|---|---|---|
| 開始価格 | 無料 / 月額10ドル | Free / $4/mo sync |
| 無料プラン | ✅ | ✅ |
| Databases & Board View | ✅ | ❌ |
| Local Files | ❌ | ✅ |
| チームコラボレーション | ✅ | ❌ |
| 内蔵AI | ✅ Notion AI | ✅ via plugins |
| オフラインアクセス | 限定 | ✅ 満員 |
| Local LLM Support | ❌ | ✅ |
| 最適な用途 | Teams & databases | Private knowledge base |
1. Note Taking & Editing
概念： You create pages from blocks and drop in bulleted lists, headings, and formatting options. Nested pages keep all the content tidy. A table of contents, sometimes called a contents table, helps readers jump around a long notion page.
黒曜石： You write in plain Markdown and connect ideas with internal links. Atomic notes link to each other to form a knowledge base. This keeps your own thoughts visually clear.
2. AI機能
概念： Notion AI is built in and works across your notion workspace. It drafts text, summarizes 会議メモ, and answers ai questions. The ai feature is a paid add-on.
黒曜石： Obsidian AI comes from community plug ins. Copilot adds an ai chatbot and vault chat that reads your entire vault. You can plug in チャットGPT, other large language models, or a local llm.
⚠️ 警告： Obsidian’s chat gpt bot and text generator plugins need an API key. A ChatGPT bot running on cloud models sends selected text off-device unless you use local machine learning.
3. Databases & Visual Views
概念： Powerful databases can show data as a table, board view, list, timeline, or calendar. Kanban boards make tasks easy to track. This is where Notion pulls ahead for project management.
黒曜石： There are no true databases, but the visual graph maps how obsidian notes connect. It gives a visually clear picture of your ideas and helps you ブレインストーミング ideas across the vault.
4. プロジェクトとタスク管理
概念： Notion shines for project management. You can assign tasks, set due dates, and build to do lists in one view. Teams track projects with status, owner, and deadline properties.
黒曜石： Task handling is lighter and lives in daily notes or plugins. It fits personal use more than team projects. There are no native project management tools like Notion’s.
5. Meeting Notes & Capture
概念： Ready-made templates capture meeting notes fast. Teammates can leave comments and assign follow-up tasks in the same notion page. Notion Mail also ties email into your workspace.
黒曜石： The Canvas workspace lets you place notes on an infinite board. It is great to brainstorm ideas and map structured content, though it lacks shared comments.
6. Calendar & Scheduling
概念： You can connect Google Calendar to see meetings inside Notion. It also links to Google Docs and Google Drive, so files sit next to your notes.
黒曜石： Scheduling relies on plugins and daily notes. Utility add-ons like Date Magic handle dates, while other apps sync calendars. It is less connected to Google services than Notion.
7. Search & Retrieval
概念： Enterprise Search scans across every notion page and connected app. It pulls relevant information from all the content in one query. Larger plans index more sources.
黒曜石： Smart Connections uses semantic search to find related vault notes. Copilot adds retrieval augmented generation for context aware answers and an organized conversation history in chat mode.
8. Customization & Themes
概念： Design is clean but lighter on deep theming. You tweak layouts, icons, and covers to keep pages tidy. Most users find the defaults enough to stay organized.
黒曜石： Custom themes and various global settings profiles give deep control. You can manually adjust CSS and swap settings profiles per vault. Power users get more brilliance from this flexibility.
9. Offline Access & Privacy
概念： Notion needs an internet connection for full syncing. Offline support is limited, which can slow you down on the go. Your data lives in the cloud.
黒曜石： Everything works offline because files sit on your local machine. This keeps your data private and always within reach. Plugins can even show a live word count as you type. It is a big win for privacy-focused note taking.
10. 価格設定とコスト
料金プランを並べて比較してみましょう。
| プラン | 概念 | 黒曜石 |
|---|---|---|
| 無料 | $0 | Free (personal) |
| Entry paid | Plus $10/user/mo | Sync $4/mo |
| Mid tier | Business $20/user/mo | Publish $8/mo |
| 最高級 | Enterprise: Custom pricing | Commercial $50/year |
概念： The free version covers individual users well. Paid plans add collaboration and, at the enterprise plan level, unlimited page history and a dedicated success manager.
黒曜石： The core app is free for personal use. You only pay for optional sync, publishing, or a commercial license for business teams.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| チームコラボレーション | 概念 | リアルタイム共有編集 |
| Full offline access | 黒曜石 | Local files, no internet |
| Databases and board view | 概念 | Flexible views |
| Private local llm | 黒曜石 | Runs on your machine |
| Beginner-friendly start | 概念 | Templates and simple UI |
💰 あなたの予算
Both have a free plan. Notion’s free version fits solo use, while Obsidian is free for personal use with only optional paid extras.
🔌 あなたの技術スタック
Notion connects to Google Drive, Google Docs, and Google Calendar. Obsidian relies on plugins to reach other apps.
📝 あなたの文章スタイル
Obsidian rewards linked atomic notes and personal knowledge management. Notion suits mixed content like wikis, journal entries, and databases.
🎓 あなたの経験レベル
New users find Notion easier to start. Obsidian’s advanced features can feel overwhelming until you learn its plug ins.
🆓 無料トライアルとデモ
Try both before you commit. Create a small project in each and see which helps you stay organized.
🛟 サポートオプション
Notion has guides, a large community, and paid support tiers where you can raise a support ticket. Obsidian leans on its forum, plugins overview docs, and ユーチューブ ビデオ。
切り替えガイド
既にこれらのツールのいずれかをご利用ですか？切り替える場合、どのような変更が想定されますか？
🔄 Switching from Notion to Obsidian?
✅ 得られるもの：
- Full offline access with no internet connection
- Local files and local models for private ai
- Deeper theming with global settings profiles
❌ 失うもの：
- Flexible databases and kanban boards
- Real-time collaborative workspace features
- Built-in Notion AI across the workspace
📋切り替え方法：
- Export Notion pages as Markdown files
- Create a new obsidian vault
- Drop the files in and install a few plugins
🔄 Switching from Obsidian to Notion?
✅ 得られるもの：
- Databases, board view, and project management tools
- Team features to assign tasks and set due dates
- An all in one workspace for small teams
❌ 失うもの：
- Local files and the offline-first vault
- Local llm and private ai questions
- The visual graph of linked notes
📋切り替え方法：
- Export vault notes as Markdown
- Create a free Notion account
- Import files and rebuild pages with templates
What Our Review Didn’t Cover
This comparison focused on note taking, project management, and everyday ai tools. We did not test large enterprise rollouts or heavy custom plugin coding in Obsidian. Our notes reflect the January 2026 versions, so features may have changed. If you manage a big team or build your own plug ins, your experience may differ from ours.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | 黒曜石 |
| 🚀 主な機能 | 概念 |
| 🔒 Privacy & Offline | 黒曜石 |
| 🤝 コラボレーション | 概念 |
| 👶 使いやすさ | 概念 |
| 🔌 連携機能 | 概念 |
| 🏆総合優勝 | 概念 |
🏆 WINNER: NOTION
Notion wins 4 out of 6 categories.
最適な用途: team collaboration, project management, and an all in one workspace
Notion and Obsidian solve two different problems. Notion is a broad workspace for teams, tasks, and databases. Obsidian is a private home for atomic notes and personal knowledge management.
Obsidian is excellent for privacy, offline work, and a local llm setup. If you want to use Notion for both personal use and small teams, it is the better all-round pick.
Many users highly recommend Notion as their first productivity app. Pick the tool that matches how you think and work.
Notionの比較をもっと見る
Here is how Notion stacks up against other 概念の代替案:
ノーション対 クリックアップ
Notionが勝利した点： flexible notes, cleaner design, gentler learning curve
ClickUpが優れている点： deeper task tracking, 時間追跡, sprint tools
Notionが勝利した点： bigger template library, simpler interface, wider app support
コーダ 勝利したタイトル： stronger tables, built-in automations, formula depth
Notionが勝利した点： collaboration, integrations, polished templates
あらゆるタイプ 勝利したタイトル： local-first storage, encryption, offline privacy
More of Obsidian Compared
Here is how Obsidian stacks up against other note taking tools:
Obsidian vs 容量
Obsidianが勝利した点： local files, offline access, richer plugin library
キャパシティーズが勝つ点： object-based structure, cloud sync included, cleaner mobile app
Obsidian vs クラフト
Obsidianが勝利した点： deep linking, local llm support, custom themes
クラフトの勝利点： polished design, easier sharing, Apple-native feel
Obsidian vs xタイル
Obsidianが勝利した点： privacy, graph view, offline-first vaults
xTiles wins on: visual boards, easier onboarding, flexible canvas layouts
よくある質問
Notionは主にどのような用途で使われていますか？
Notion is used for note taking, task management, and project management, all inside a single all in one workspace.
Obsidian AI は無料ですか?
Yes, most Obsidian AI plugins are free. Some, like Copilot, need a paid API key from OpenAI or Anthropic to reach cloud models.
Notionの欠点は何ですか？
Notion needs an internet connection for full syncing, and its advanced features can feel overwhelming for new users. Notion AI also costs extra.
Obsidianは評判通りの価値があるのか？
For private, offline personal knowledge management, yes. It stores notes as local files and supports a local llm, though setup takes some effort.
Notionよりも優れたアプリはありますか？
It depends on your needs. Obsidian is better for privacy and offline work. Notion wins for teams, databases, and collaboration.
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