processing: Web graphic applications with processing.js.

[ bsd3, graphics, library ] [ Propose Tags ]

Processing is a visual design programming language. Processing.js is the sister project of Processing designed for the web. The Haskell processing package is a web animation library with Processing.js as backend.

What is this for?

With this library you are able to write scripts that, once executed in a browser, will execute interactive visual programs.

Where can I see a running example?

Running examples are provided in the examples directory. These are some of the outputs:

The code of the latter is included in the source distribution.

How do I learn to use it?

The API reference of the library includes guidance and is complemented with code examples. Look also to the examples directory included in the source distribution. It contains some fully working examples. Also online at:

The library provides different APIs (interfaces). Each one with a different philosophy.

The module Graphics.Web.Processing.Html helps you to create the HTML document where you will display the animation.

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Dependencies base (==4.*), blaze-html (>=0.5.1), containers (==0.5.*), directory (==1.2.*), filepath (>= && <1.5), ghc-prim, mainland-pretty (>=0.2 && <0.5), multiset (>=0.2.2 && <0.3), QuickCheck, quickcheck-instances, template-haskell, text (>= && <2), transformers (>=0.3 && <0.6) [details]
License BSD-3-Clause
Author Daniel Díaz
Maintainer Daniel Díaz (dhelta.diaz `at`
Category Graphics
Bug tracker
Source repo head: git clone
Uploaded by DanielDiaz at 2016-06-01T05:02:33Z
Distributions NixOS:
Downloads 4678 total (14 in the last 30 days)
Rating 2.0 (votes: 1) [estimated by Bayesian average]
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Status Hackage Matrix CI
Docs not available [build log]
All reported builds failed as of 2016-11-24 [all 3 reports]


  • Graphics
    • Web
      • Graphics.Web.Processing
        • Graphics.Web.Processing.Basic
        • Core
          • Graphics.Web.Processing.Core.Interface
          • Graphics.Web.Processing.Core.Types
          • Graphics.Web.Processing.Core.Var
        • Graphics.Web.Processing.Html
        • Graphics.Web.Processing.Mid
          • Graphics.Web.Processing.Mid.CustomVar
        • Graphics.Web.Processing.Optimize
        • Graphics.Web.Processing.Simple


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Readme for processing-

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Processing library

Web graphic applications with processing.js as backend.

Still in development!


Find examples of usage at the examples directory. The mill example looks like this.