Notes & Study Tools

Think. Write. Draw.

Markdown notebooks, spaced-repetition flashcards, and an infinite canvas right alongside your books.

Showcase of notebooks and markdown functionality
Markdown LaTeX Code

Notebooks

Notes that keep up.

Write in Markdown, render live. LaTeX equations, code blocks, headers, and more, all formatted as you type. Attached right next to any book.

  • Full Markdown with live preview
  • LaTeX math rendered with KaTeX
  • Code blocks with syntax highlighting
  • Source and read-only views
Showcase of flashcard ui

Flashcards

Study anything.

Build spaced-repetition decks from your notes, or import ones you already use. Study smarter, not harder.

  • Spaced-repetition algorithm
  • Create from any notebook
  • Import existing decks
  • Track your progress over time
Gnos sketchbook powered by Excalidraw with drawing tools

Sketchbook

Think on an infinite canvas.

Sketch diagrams, annotate PDFs, and map ideas on an Excalidraw whiteboard - without leaving the app.

  • Infinite canvas powered by Excalidraw
  • Shapes, arrows, and freehand drawing
  • Import PDF pages as canvas background
  • Saved alongside your library
Gnos in light mode showing the sidebar and library

Works everywhere

Stays next to your reading.

Notebooks, flashcards, and sketches live in the same window as your books. No app switching. No losing your place.

  • Split-pane layout, books and notes side by side
  • Multiple tabs open at once
  • Everything saved locally and instantly
  • Works completely offline

Study smarter.

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