Download Buildshare chrome extension. Kickstart the design of your Bubble™ app with access to pre-built responsive UI elements and learning resources. and install in your Google chrome browser. This is Direct Buildshare Crx download for Chrome it is also called Buildshare offline CRX for chrome Download. This Buildshare is used to Kickstart the design of your Bubble™ app with access to pre-built responsive UI elements and learning resources.