Spine notes

A React/Vite note-taking app built for focus and flexibility.

ReactViteExcalidrawKaTeX

Excalidraw canvas pages for freeform sketching and diagrams
Rich PDF/HTML export for sharing and printing notes
Voice memos and folder management for organising everything
YouTube embeds directly inside notes
Scientific tools built in: calculator, graphing, LaTeX via KaTeX, unit converter
Backup and restore, plus a table-of-contents panel for quick navigation
Refined over several iterations for Nielsen heuristic compliance