Heptabase

Heptabase is presented as a visual knowledge base that combines whiteboards, cards, and notes to help users clarify thinking and organize sources. The page says it can use AI to explain sources, take notes, and organize a knowledge base, and that users can connect sources, notes, highlights, and discussions in one place. It lists platform availability across Mac, Windows, Linux, iOS, and Android, and mentions offline access, real-time collaboration, a 7-day trial, and a Heptabase CLI that works with tools such as Claude Code and Codex.

Key features

• AI tutor that explains sources, takes notes, and organizes the knowledge base
• Whiteboards and cards for clarifying thinking
• Block-based editor
• Bi-directional links
• PDF annotation
• YouTube and web source support
• Daily journals
• Web clipper
• Readwise integration
• Zotero integration
• Heptabase CLI that works with Claude Code, Codex, etc.
• Search over 10,000 notes in less than a second
• Offline access to notes and files
• Real-time collaboration with invited teammates
• Mobile capture and editing with voice note support

Best suited for

• Students
• Researchers
• Lifelong learners

Pricing

Not stated on the website