SpeedyNote アプリ
SpeedyNote is a blazing-fast, cross-platform note-taking app for stylus users. Built for students who need iPad-quality annotation on budget hardware.Features
Performance First
360Hz stylus polling on low-end hardware (tested: Celeron N4000 @ 1.1GHz)
Instant PDF loading - large documents open in seconds, not minutes
Small memory footprint - native C++ with no Electron bloat
ARM64 native builds - optimized for Snapdragon laptops and Rockchip Chromebooks
Professional Drawing Tools
Pressure-sensitive inking with Pen, Marker, and Highlighter tools
Vector-based strokes - always sharp at non-extreme zoom levels
Multi-layer editing (SAI2-style) - add, delete, reorder, merge layers
Stroke eraser with full undo/redo support
Touch gestures - two-finger pan, pinch-to-zoom, palm rejection
Document Modes
Paged Notebooks - traditional page-by-page notes (`.snb)
Edgeless Canvas - infinite whiteboard with lazy-loading tiles (`.snb)
PDF Backgrounds - annotate PDFs with clickable internal links
Sharing - .snbx note bundles allows easy cross-platform note sharing.
Tablet-First UX
Action bars - context-sensitive buttons appear when you need them
Subtoolbars - quick access to tool settings without menu diving
Page panel - thumbnail navigation with drag-to-reorder
PDF outline - click TOC entries to jump to sections
Advanced Features
Link objects - create clickable links to markdown notes, URLs, or positions
Markdown notes - attach rich text notes to any page or position
Multi-tab editing - work on multiple documents simultaneously