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Welcome to the wiki pages for Easy Java/Javascript Simulations!

About Easy Java/Javascript Simulations

Easy Java/Javascript Simulations, also known as EjsS (and, formerly, EJS or Ejs), is a free authoring tool written in Java that helps non-programmers create interactive simulations in Java or Javascript, mainly for teaching or learning purposes. EjsS has been created by Francisco Esquembre and is part of the Open Source Physics project.


The Javascript ‘flavour’ of EjsS is possible thanks to the collaboration of Félix Jesús Garcia Clemente, coauthor with Francisco of the Javascript library that supports this flavour and main developer of the Reader Apps.


A brief historical and naming remark: Before release 5.0, EjsS could only create Java simulations. Hence, its former name was “Easy Java Simulations” and its acronym just “EJS”. Now, since release 5.0, EjsS can create (also) simulations that use Javascript and HTML5, and hence can be run on tablets and smartphones (see our Reader App). This major change explains why we have renamed EJS as Easy Java/Javascript Simulations, and its acronym is EjsS. You may still find many references to EjsS (even in this wiki) that use its old name.


In this wiki:



Multimedia in Physics Teaching and Learning Award received December 2015. See MPTL Award letter.
Science SPORE Prize received November 2011
UNESCO Bangkok, Asia and Pacific Regional Bureau for Education selected in March 2015 Easy Java/Javascript Simulations to be part of the free educational compilation entitled “UNESCO Directory of Free Educational Resources for Teachers. Vol. 1: Science” for distribution worldwide, mostly in the Asia-Pacific region targeting developing countries. See UNESCO Bangkok letter.
UNESCO King Hamad Bin Isa Al-Khalifa Prize for the Use of ICTs in Education received January 2016 for Price to Open Source Physics At Singapore


Password only required for helping with the documentation

If you follow a link in this wiki and get a ‘Password required’ message, this means the page you tried to visit does not exist yet. You can contact Francisco Esquembre for a password to help with this documentation and edit wiki pages.

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Page last modified on May 19, 2017, at 02:13 PM