LOE to convert FlexViewer app to HTML5?

[DarrenGemoets]

I'm sure I'm not the only one who is looking to convert a FlexViewer app to HTML5 to avoid using Flash.  Has anybody tried this?  It seems like an awfully big job, especially if you've customized the FlexViewer extensively as I have.  I'm just curious if anybody has some thoughts about attempting such a conversion.

[RobertScheitlin__GISP · Accepted solution]

Darren,

  Most are just starting with the Web AppBuilder as it's lead developer is the same one that wrote/designed the AGS Viewer for Flex. There is a lot of similarities.

Web AppBuilder for ArcGIS​

Web AppBuilder Custom Widgets​

[RebeccaStrauch__GISP]

Also (disclaimer...my blogs)  Check out

Web AppBuilder Developer Edition - Customization Resource List

Tips and Observations for getting Web AppBuilder -  Developer Edition Installed

Tips for using the custom LocalLayer widget with WAB-Dev edition

Tips (LocalLayer widgets) for more customization and Updating (may help with others too)

And a very good install guide with graphics by TAPAS DAS​

Installing Robert’s Enhanced Search Widget for the Web AppBuilder

And official download and info

Web AppBuilder for ArcGIS (Developer Edition) | ArcGIS for Developers

p.s. And although Robert Scheitlin, GISP isn't tooting his own horn, he wrote many of the custom widgets for the Flex viewer, and has now focused on Web AppBuilder, so many of the widgets have been ported over...plus it's a very active community.