Obsidian vs Shortwave

Side-by-side comparison to help you choose the best tool.

Obsidian

freemium

Productivity & Workflow

4.6 / 5.0

Obsidian is a local-first knowledge management and note-taking app built on Markdown files, with AI features via community plugins and the official Copilot plugin. Its graph view visualises knowledge connections between notes, and AI plugins enable chat with your notes, semantic search, and AI writing assistance. Popular with researchers, writers, and developers who prioritise data ownership and offline access.

Best for: Researchers, writers, and knowledge workers who want local-first note management with AI features and full control over their data

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Shortwave

freemium

Productivity & Workflow

4.3 / 5.0

Shortwave is an AI email client built on top of Gmail that changes your inbox into a productivity powerhouse. Its AI assistant can search your entire email history, draft replies in your writing style, summarise long threads in seconds, and answer questions about your inbox conversationally - making it one of the most capable AI email tools for Gmail power users.

Best for: Gmail users who want an AI assistant that can search, summarise, and draft emails conversationally without leaving their inbox

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Feature Comparison

Feature	Obsidian	Shortwave
Pricing	freemium	freemium
Category	Productivity & Workflow	Productivity & Workflow
Rating	★★★★½ 4.6	★★★★☆ 4.3
Best For	Researchers, writers, and knowledge workers who want local-first note management with AI features and full control over their data	Gmail users who want an AI assistant that can search, summarise, and draft emails conversationally without leaving their inbox
Views	6	4

Pros & Cons — Obsidian

Pros

Local-first with full data ownership
Graph view surfaces unexpected knowledge connections
Most extensible note-taking app via plugins

Cons

AI features require plugins — more setup than Notion AI
Steeper learning curve than simpler note apps

Pros & Cons — Shortwave

Pros

AI can search and answer questions about past emails
Free plan available
Clean modern interface over Gmail

Cons

Gmail only — no Outlook support
AI features limited on free plan

Key Features — Obsidian

Local Markdown note storage
Knowledge graph visualisation
AI Copilot plugin
Semantic search over notes
Extensive plugin ecosystem

Key Features — Shortwave

Conversational AI email search
AI reply drafting in your writing style
Thread summarisation
Smart inbox bundling
Scheduled send & reminders

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