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
Visit Obsidian

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
Visit Shortwave
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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