The fastest way to get more done with Heptabase

Heptabase turns your notes into a visual network you can arrange on infinite whiteboards. It's built for people who think in relationships — researchers, writers, and PhD students who need to see how sources connect. 2026 added AI that reads your whole library and drafts literature reviews.

Who it's for: Academics, PhD candidates, and non-fiction writers managing hundreds of sources.

Key features

Whiteboard Visual graph

Drag notes onto infinite canvases; connect them spatially, not just by link.

PDF Source reader

Annotate PDFs and clips; highlights become linked notes automatically.

AI Literature review

Ask the AI to synthesize your library into an outline or draft.

Cards Atomic notes

Zettelkasten-style cards with backlinks and tags.

The honest take

✓ What works

Unmatched visual knowledge mapping
Excellent PDF annotation
AI synthesis saves research hours
Pleasant writing UX

✗ What doesn't

Desktop-only (no web app)
Steeper learning curve
Smaller community than Obsidian
Sync is paid only

Verdict

Heptabase earns its place in a modern AI stack for anyone who values productivity workflows done right. For Free / $10/mo it punches above its weight — and the free tier is genuinely usable. Worth a look before you commit to a heavier alternative.

💡 Transparency: This review contains affiliate links. If you sign up through our link, we may earn a commission at no cost to you. We only recommend tools we use ourselves. Full disclosure.