The processing.js project was started by John Resig who wanted to utilize the HTML5 canvas element and take advantage of the Java Processing language. It took about seven months to get a working version, consisting of 5000 lines of code but it was not a complete port of the Processing language. (Resig 2008).  “In development I worked in a backwards manner. Instead of building the API up from the ground - I worked from the top, down, implementing enough of the API to get individual demos working.” -http://ejohn.org/blog/processingjs/  The project, similarly to other open source products, was released with the hope that a developer community will converge around it and contribute to development.

In September 2009, we began the work to complete the Processing port to JavaScript. In order to facilitate an architecture for participation a number of things needed to happen. First and foremost the source code had to be readily available. Secondly, the inner workings of the project and the missing functionality must be publicized and a dialog started. To this end the source code was made available publicly on GitHub and an issue tracking system was used to manage the large number of issues needed to be resolved in order to complete the port. A review process was setup to ensure that the code submitted was of sufficient quality.