WordPress.org

webdevstudios

Justin Sternberg

Gary Jones

shaunandrews

Plugin project for refreshing WordPress core’s widget interface. 
https://make.wordpress.org/ui/tag/widgets/

WordPress Widgets Refresh

Plugin project for refreshing WordPress core's widget interface. http://make.wordpress.org/ui/tag/widgets/

inconver

You can add new sidebars in the admin panel and edit them.
You can add new types of widgets and edit them. 
Also, you can add custom fields for new types of widgets. 
And you can create a unique template for each new type of widget.
Video tutorial: <a href="http://inconver.com/wui/" rel="nofollow ugc">http://inconver.com/wui/</a>

WUI: Widgets User Interface

Plugin for creating new sidebars for the site and new types of widgets with the custom fields

WordPress Widgets Refresh vs WUI: Widgets User Interface