Anime.js

Lightweight JavaScript animation library with powerful timeline and stagger capabilities for web animations.

Overview

Anime.js (pronounced "Anime JS") is a versatile animation engine that works with DOM elements, CSS properties, SVG attributes, and JavaScript objects. Unlike React-specific libraries, Anime.js works with vanilla JavaScript and any framework.

When to use this skill:

• Timeline-based animation sequences with precise choreography
• Staggered animations across multiple elements
• SVG path morphing and drawing animations
• Keyframe animations with percentage-based timing
• Framework-agnostic animation (works with React, Vue, vanilla JS)
• Complex easing functions (spring, steps, cubic-bezier)

Core features:

• Timeline sequencing with relative positioning
• Powerful stagger utilities (grid, from center, easing)
• SVG morphing and path animations
• Built-in spring physics easing
• Keyframe support with flexible timing
• Small bundle size (~9KB gzipped)

Core Concepts

Basic Animation

The anime() function creates animations:

import anime from 'animejs'

anime({
  targets: '.element',
  translateX: 250,
  rotate: '1turn',
  duration: 800,
  easing: 'easeInOutQuad'
})

Targets

Multiple ways to specify animation targets:

// CSS selector
anime({ targets: '.box' })

// DOM elements
anime({ targets: document.querySelectorAll('.box') })

// Array of elements
anime({ targets: [el1, el2, el3] })

// JavaScript object
const obj = { x: 0 }
anime({ targets: obj, x: 100 })

Animatable Properties

CSS Properties:

anime({
  targets: '.element',
  translateX: 250,
  scale: 2,
  opacity: 0.5,
  backgroundColor: '#FFF'
})

CSS Transforms (Individual):

anime({
  targets: '.element',
  translateX: 250,   // Individual transform
  rotate: '1turn',   // Not 'transform: rotate()'
  scale: 2
})

SVG Attributes:

anime({
  targets: 'path',
  d: 'M10 80 Q 77.5 10, 145 80', // Path morphing
  fill: '#FF0000',
  strokeDashoffset: [anime.setDashoffset, 0] // Line drawing
})

JavaScript Objects:

const obj = { value: 0 }
anime({
  targets: obj,
  value: 100,
  round: 1,
  update: () => console.log(obj.value)
})

Timeline

Create complex sequences with precise control:

const timeline = anime.timeline({
  duration: 750,
  easing: 'easeOutExpo'
})

timeline
  .add({
    targets: '.box1',
    translateX: 250
  })
  .add({
    targets: '.box2',
    translateX: 250
  }, '-=500') // Start 500ms before previous animation ends
  .add({
    targets: '.box3',
    translateX: 250
  }, '+=200') // Start 200ms after previous animation ends

Common Patterns

1. Stagger Animation (Sequential Reveal)

anime({
  targets: '.stagger-element',
  translateY: [100, 0],
  opacity: [0, 1],
  delay: anime.stagger(100), // Increase delay by 100ms
  easing: 'easeOutQuad',
  duration: 600
})

2. Stagger from Center

anime({
  targets: '.grid-item',
  scale: [0, 1],
  delay: anime.stagger(50, {
    grid: [14, 5],
    from: 'center', // Also: 'first', 'last', index, [x, y]
    axis: 'x'       // Also: 'y', null
  }),
  easing: 'easeOutQuad'
})

3. SVG Line Drawing

anime({
  targets: 'path',
  strokeDashoffset: [anime.setDashoffset, 0],
  easing: 'easeInOutQuad',
  duration: 2000,
  delay: (el, i) => i * 250
})

4. SVG Morphing

anime({
  targets: '#morphing-path',
  d: [
    { value: 'M10 80 Q 77.5 10, 145 80' }, // Start shape
    { value: 'M10 80 Q 77.5 150, 145 80' }  // End shape
  ],
  duration: 2000,
how to use animejs
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How to use animejs on Cursor
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1
Prerequisites
Before installing skills in Cursor, ensure your development environment meets these requirements:
›Cursor installed and configured on your development machine
›Node.js version 16.0+ with npm package manager (verify with node --version)
›Active project directory or workspace where you want to add animejs
2
Execute installation command
Execute the skills CLI command in your project's root directory to begin installation:
$npx skills add https://github.com/freshtechbro/claudedesignskills --skill animejscopy
The skills CLI fetches animejs from GitHub repository freshtechbro/claudedesignskills and configures it for Cursor.
3
Select Cursor when prompted
The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:
◆ Which agents do you want to install to?
│
│ ── Universal (.agents/skills) ── always included ────
│   • Amp
│   • Antigravity
│   • Cline
│   • Codex
│ ●Cursor(selected)
│   • Cursor
│   • Windsurf
4
Verify installation
Confirm successful installation by checking the skill directory location:
.cursor/skills/animejs
Reload or restart Cursor to activate animejs. Access the skill through slash commands (e.g., /animejs) or your agent's skill management interface.
⚠
Security & Verification Notice
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.
Additional Resources
›View source code on GitHub›Skills CLI documentation›Learn more about Cursor›What are agent skills?