About

A private notes app for thoughts that arrive at inconvenient times

Nemosine helps you capture notes, tasks, links, ideas, and voice notes quickly, then organize them later with linked notes, airplane-mode offline use, encrypted sync, and export.

Mission

Nemosine exists to help people hold on to good ideas in real life. Most thoughts arrive at inconvenient moments, then disappear because capture is slow or retrieval is chaotic.

We built Nemosine so writing feels immediate, organization stays flexible, and the thoughts worth keeping are easier to recover.

Product principles

  • Capture before structure: fast thought entry always comes first.
  • Local-first reliability: your core workflow should work without a network.
  • Security by design: when sync is enabled, content is encrypted on-device before upload.
  • Long-term portability: your notes can be exported as markdown.

Why "rivers"

Ideas rarely move in straight lines. Rivers let related thoughts collect and evolve naturally while still preserving context.

Who we build for

Nemosine is built for people who need a private notes app for quick thought capture, linked notes, tasks, on-device voice transcription, complete offline use, encrypted sync, and portable markdown export.