Heptabase vs Napkin AI

Powerful collaborative visual workspace with robust AI brainstorming and diagramming tools, but broader feature set.

Generates beautifully styled presentations and documents from text prompts, though less focused on inline diagramming.

SpecialistThe collaborative whiteboard built for product builders

SpecialistMap the literature around the papers you love—free

Turn text and data into polished infographics, reports and videos with AI

Collaborative whiteboard featuring built-in AI tools for flowcharts, mind maps, and diagrams.

SpecialistOrganizes notes into connected typed objects rather than visual whiteboards and infinite spatial canvases.

Pairs a spatial visual canvas with multi-model chat agents, offering a more agentic research experience than Heptabase.

Combines an infinite canvas workspace with an integrated AI assistant to organize projects and generate boards.

SpecialistTransforms diverse study materials like PDFs and videos directly into interactive concept maps and flashcards.

An offline-first visual note-taking app on an infinite canvas with built-in AI summarization tools.

Specialized in AI diagramming, mind maps, and flowcharts, but lacks Napkin's seamless inline text integration.