Do you need to buy a run time license from Sencha if your application code written is developed in Ext JS and deployed on a web server?


  • Just save yourself the hassle and choose a different framework.
    – pllee
    Aug 11, 2012 at 1:36
  • @pllee, care to tell us why it is a hassle?
    – NoChance
    Aug 11, 2012 at 2:23
  • @EmmadKareem I would but I don't think this is the best place. You can see my contact info in my profile.
    – pllee
    Aug 11, 2012 at 15:26

1 Answer 1


If your server app is open source, no... I.e. you give the code away freely

If you don't want to give the code away, you need a license per developer working on the site.

  • 1
    So if it was commercialized software application using Sencha Ext JS, and we had 5 developers who are currently developing the application and 10,000 users connecting to the production web server hosting the application, we would only need to buy licenses for 5 developers? Aug 10, 2012 at 23:42
  • 1
    Yes, 5 licenses
    – Jonno
    Aug 11, 2012 at 0:07
  • Would you need to share your server side code too? For example would I need to share the NodeJS routes that are implemented for the ajax-api that the Ext JS application is using? Apr 12, 2016 at 15:43
  • As far as I understand it, yes, you would need to share the server side code too.
    – Jonno
    Apr 13, 2016 at 9:57

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