Euclid Notes is a linked, citable notebook for literature reviews, lab work, and long-term projects — with backlinks, local-first sync, and zero lock-in to a proprietary format.
#lit-review Comparing sample sizes across three papers on [[coral-bleaching]]
#lab-notebook Backlinked to [[week-14-protocol]] — 2 citations attached
#synced Last saved locally 4 seconds ago · no cloud required
Built around how researchers actually think — in links, threads, and citations.
Every note links both ways, so you can trace an idea back to where it came from.
Your notes live on your machine first and sync when you're online — nothing is ever cloud-only.
Drop a citation key anywhere and Euclid Notes builds your bibliography automatically.
Notes are stored as plain, portable files — readable with or without Euclid Notes installed.
Highlights from Euclid PDF Reader land directly in your notes, already linked to the source.
See your whole project as a map of linked notes instead of a flat folder of files.
Jot notes while reading a paper in Euclid PDF Reader — they land in Euclid Notes with the citation already attached.
Connect notes with backlinks as patterns emerge across your sources.
Turn key notes into spaced-repetition cards in Euclid Flashcards without leaving your workflow.
Your notes stay in an open, portable format — export to Markdown, PDF, or plain text anytime.
Euclid Notes is free, open-source, and available on desktop, web, tablet, and mobile.