Bugfix

An FPS limiter has been included in the code to help resolve CPU utilization issues

This functions by using a setTimeout() method to limit the number of calls to requestAnimationFrame. As specified in the documentation this can be set in the JSON.

Happy Coding!

---

particles.js

A lightweight JavaScript library for creating particles.

---

Demo / Generator

Configure, export, and share your particles.js configuration on CodePen:
http://vincentgarreau.com/particles.js/

CodePen demo:
http://codepen.io/VincentGarreau/pen/pnlso

---

Usage

Load particles.js and configure the particles:

index.html

<div id="particles-js"></div>

<script src="particles.js"></script>

app.js

/* particlesJS.load(@dom-id, @path-json, @callback (optional)); */
particlesJS.load('particles-js', 'assets/particles.json', function() {
  console.log('callback - particles.js config loaded');
});

particles.json

{
  "fps_limit": 30,
  "particles": {
    "number": {
      "value": 80,
      "density": {
        "enable": true,
        "value_area": 800
      }
    },
    "color": {
      "value": "#ffffff"
    },
    "shape": {
      "type": "circle",
      "stroke": {
        "width": 0,
        "color": "#000000"
      },
      "polygon": {
        "nb_sides": 5
      },
      "image": {
        "src": "img/github.svg",
        "width": 100,
        "height": 100
      }
    },
    "opacity": {
      "value": 0.5,
      "random": false,
      "anim": {
        "enable": false,
        "speed": 1,
        "opacity_min": 0.1,
        "sync": false
      }
    },
    "size": {
      "value": 10,
      "random": true,
      "anim": {
        "enable": false,
        "speed": 80,
        "size_min": 0.1,
        "sync": false
      }
    },
    "line_linked": {
      "enable": true,
      "distance": 300,
      "color": "#ffffff",
      "opacity": 0.4,
      "width": 2
    },
    "move": {
      "enable": true,
      "speed": 12,
      "direction": "none",
      "random": false,
      "straight": false,
      "out_mode": "out",
      "bounce": false,
      "attract": {
        "enable": false,
        "rotateX": 600,
        "rotateY": 1200
      }
    }
  },
  "interactivity": {
    "detect_on": "canvas",
    "events": {
      "onhover": {
        "enable": false,
        "mode": "repulse"
      },
      "onclick": {
        "enable": true,
        "mode": "push"
      },
      "resize": true
    },
    "modes": {
      "grab": {
        "distance": 800,
        "line_linked": {
          "opacity": 1
        }
      },
      "bubble": {
        "distance": 800,
        "size": 80,
        "duration": 2,
        "opacity": 0.8,
        "speed": 3
      },
      "repulse": {
        "distance": 400,
        "duration": 0.4
      },
      "push": {
        "particles_nb": 4
      },
      "remove": {
        "particles_nb": 2
      }
    }
  },
  "retina_detect": true
}

---

Options

key	option type / notes	example
.fps_limit	Limits the fps of the animation redraw, set to 0 for no limit	30
particles.number.value	number	40
particles.number.density.enable	boolean	true / false
particles.number.density.value_area	number	800
particles.color.value	HEX (string) RGB (object) HSL (object) array selection (HEX) random (string)	"#b61924" {r:182, g:25, b:36} {h:356, s:76, l:41} ["#b61924", "#333333", "999999"] "random"
particles.shape.type	string array selection	"circle" "edge" "triangle" "polygon" "star" "image" ["circle", "triangle", "image"]
particles.shape.stroke.width	number	2
particles.shape.stroke.color	HEX (string)	"#222222"
particles.shape.polygon.nb_slides	number	5
particles.shape.image.src	path link svg / png / gif / jpg	"assets/img/yop.svg" "http://mywebsite.com/assets/img/yop.png"
particles.shape.image.width	number (for aspect ratio)	100
particles.shape.image.height	number (for aspect ratio)	100
particles.opacity.value	number (0 to 1)	0.75
particles.opacity.random	boolean	true / false
particles.opacity.anim.enable	boolean	true / false
particles.opacity.anim.speed	number	3
particles.opacity.anim.opacity_min	number (0 to 1)	0.25
particles.opacity.anim.sync	boolean	true / false
particles.size.value	number	20
particles.size.random	boolean	true / false
particles.size.anim.enable	boolean	true / false
particles.size.anim.speed	number	3
particles.size.anim.size_min	number	0.25
particles.size.anim.sync	boolean	true / false
particles.line_linked.enable	boolean	true / false
particles.line_linked.distance	number	150
particles.line_linked.color	HEX (string)	#ffffff
particles.line_linked.opacity	number (0 to 1)	0.5
particles.line_linked.width	number	1.5
particles.move.enable	boolean	true / false
particles.move.speed	number	4
particles.move.direction	string	"none" "top" "top-right" "right" "bottom-right" "bottom" "bottom-left" "left" "top-left"
particles.move.random	boolean	true / false
particles.move.straight	boolean	true / false
particles.move.out_mode	string (out of canvas)	"out" "bounce"
particles.move.bounce	boolean (between particles)	true / false
particles.move.attract.enable	boolean	true / false
particles.move.attract.rotateX	number	3000
particles.move.attract.rotateY	number	1500
interactivity.detect_on	string	"canvas", "window"
interactivity.events.onhover.enable	boolean	true / false
interactivity.events.onhover.mode	string array selection	"grab" "bubble" "repulse" ["grab", "bubble"]
interactivity.events.onclick.enable	boolean	true / false
interactivity.events.onclick.mode	string array selection	"push" "remove" "bubble" "repulse" ["push", "repulse"]
interactivity.events.resize	boolean	true / false
interactivity.events.modes.grab.distance	number	100
interactivity.events.modes.grab.line_linked.opacity	number (0 to 1)	0.75
interactivity.events.modes.bubble.distance	number	100
interactivity.events.modes.bubble.size	number	40
interactivity.events.modes.bubble.duration	number (second)	0.4
interactivity.events.modes.repulse.distance	number	200
interactivity.events.modes.repulse.duration	number (second)	1.2
interactivity.events.modes.push.particles_nb	number	4
interactivity.events.modes.push.particles_nb	number	4
retina_detect	boolean	true / false

---

Packages install

npm

https://www.npmjs.com/package/particles.js

npm install particles.js

Bower

bower install particles.js --save

Rails Assets

gem 'rails-assets-particles.js'

Meteor

https://atmospherejs.com/newswim/particles

meteor add newswim:particles

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Hosting / CDN

Please use this host or your own to load particles.js on your projects

http://www.jsdelivr.com/#!particles.js