Download

Download the latest version of Kontra.

Source Code

Production version
Development version
TGZ file
Github repo

Package mangers

$ npm install kontra
$ yarn add kontra

CDN

Global Object

<script src="https://cdn.jsdelivr.net/npm/kontra@6.0.0/kontra.min.js"></script>

<script src="https://cdn.jsdelivr.net/npm/kontra@6.0.0/kontra.js"></script>

ES Module Import

import kontra from 'https://cdn.jsdelivr.net/npm/kontra@6.0.0/kontra.min.mjs';

import kontra from 'https://cdn.jsdelivr.net/npm/kontra@6.0.0/kontra.mjs';

Custom Builds

As of kontra 6.0.0, custom builds can be achieved by using a module bundler such as Rollup or webpack. Kontra supports ES modules, allowing you to use tree-shaking to only bundle the code you need.

// game.js
import { Sprite, GameLoop } from 'kontra';

let sprite = Sprite({
  x: 100,
  y: 100,
  dx: 2,
  width: 20,
  height: 40,
  color: 'red'
});

let loop = GameLoop({
  update() {
    sprite.update();
  },
  render() {
    sprite.render();
  }
});

loop.start();

$ rollup game.js --format iife --file game.bundle.js