dulnan/lazy-brush

Health v2 · maintenance only

Adoption not part of the score

1379 stars · 37 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A small TypeScript/JavaScript library that implements the 'lazy brush' math for smooth freehand drawing on HTML canvas with a mouse, finger, or any pointing device. It acts as a proxy between raw pointer input and drawing, only moving the brush when the pointer leaves its lazy area radius.

Use cases

• draw smooth lines with a mouse on a canvas app
• implement a finger-painting feature on touch devices
• reduce jitter in freehand sketching input
• add a drawing tool to a web whiteboard
• smooth pointer input for a signature pad

When to choose

• you need smooth freehand strokes from imprecise mouse or touch input
• you want a tiny, dependency-free math library you can drop into any canvas drawing loop
• you want configurable smoothing via radius and friction

When to avoid

• you need a full drawing application with layers, brushes, and undo out of the box
• your project is not canvas/pointer based
• you need vector or pressure-sensitive stylus handling

Facets

library · maturity stable

graphics animation web-development frontend graphics browser canvas-drawing smooth-lines pointer-input lazy-brush drawing-smoothing nodejs javascript typescript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="dulnan/lazy-brush")