🎨 CSS Houdini Paint Generator Zero Dependencies · Offline
Free online CSS Houdini Paint Worklet generator. Generate custom CSS drawing code with 5 pattern types and live Canvas preview. Pure frontend.
What Can the CSS Houdini Paint Generator Do?
The CSS Houdini Paint Generator is a free online tool that helps frontend developers quickly generate CSS Paint Worklet code. Extend CSS background and border drawing capabilities with custom JavaScript logic. 5 base patterns with live Canvas preview. Pure frontend.
Core Features
- 5 Pattern Types: Checkerboard, dots, diagonal stripes, crosshatch, and waves
- Custom Colors: Dual color picker for foreground and background
- Size Control: Adjust pattern unit size for different use cases
- Live Preview: Instant Canvas rendering preview
- Complete Code: Generates full code including registration and CSS usage
How to Use
- Choose pattern: Select from 5 base patterns
- Set colors: Pick foreground and background colors
- Adjust size: Set pattern unit pixel size
- Generate code: Click generate and copy the Worklet code
- Integrate: Deploy Worklet file to server, reference with paint() in CSS
Use Cases
Custom Background Patterns
Replace repeating background-image with Paint Worklet for infinite tiling custom pattern backgrounds.
Dynamic Border Effects
Combine with CSS custom properties for responsive dynamic border drawing effects.
Performance Optimization
Paint Worklet runs in a separate thread without blocking the main thread, ideal for frequently redrawn elements.
Technical Background
CSS Houdini is a set of W3C low-level APIs that let developers extend the CSS engine. Paint Worklet is one of the most mature Houdini APIs. Unlike Canvas, Paint Worklet is declarative — the browser automatically calls paint() when needed. Worklet runs in an isolated render thread, never blocking the main thread, making it naturally suited for performance-sensitive drawing scenarios.
❓ FAQ
What is CSS Houdini Paint Worklet?
Paint Worklet is part of CSS Houdini that allows developers to write custom drawing logic in JavaScript, then use it via CSS paint() function for backgrounds, borders, etc. It extends CSS drawing capabilities with JS.
What about browser compatibility?
Chrome 65+ and Edge 79+ support Paint Worklet. Safari is implementing it. Firefox doesn't support it yet. Use @supports detection or provide CSS fallbacks.
How do I register a Paint Worklet?
Call CSS.paintWorklet.addModule('paint-file.js') in your main JS to load the Worklet. In the Worklet file, use registerPaint() to register the painter class. In CSS, use background: paint(paint-name).
How is Paint Worklet different from Canvas?
Canvas is imperative — you manually manage drawing. Paint Worklet is declarative — driven by CSS properties, the browser automatically calls paint(). Worklet runs in a separate thread without blocking the main thread.
What pattern types are supported?
This tool supports 5 base patterns: checkerboard, dots, diagonal stripes, crosshatch, and waves. Each pattern allows custom colors and sizes. Generated code can be further modified.
Can Paint Worklet access the DOM?
No. Paint Worklet runs in an isolated Worklet global scope and cannot access DOM, window, or other APIs. It can only use Canvas 2D API for drawing, ensuring performance and security.