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Kothic JS — a full-featured JavaScript map rendering engine using HTML5 Canvas

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Kothic JS is a full-featured JavaScript map rendering engine using HTML5 Canvas. It was initially developed as a JavaScript port of Kothic rendering engine written in Python.

Check out the demo:


Building Kothic

Install Node.js, then run:

npm install
npm install -g grunt-cli

Minified Kothic source will be generated in the


Basic usage


from the
folder on your page. Now you can call:
    canvas, // canvas element (or its id) to render on
    data, // JSON data to render
    zoom, // zoom level
        onRenderComplete: callback, // (optional) callback to call when rendering is done
        styles: ['osmosnimki-maps', 'surface'], // (optional) only specified styles will be rendered, if any
        locales: ['be', 'ru', 'en'] // (optional) map languages, see below

Kothic-JS supports map localization based on name:lang tags. Renderer will check all mentioned languages in order of persence. If object doesn't have localized name, name tag will be used.

Contributing to Kothic JS

Kothic JS is licensed under a BSD license, and we'll be glad to accept your contributions!

Core contributors:

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