AngularUI vs Stencil: What are the differences?
What is AngularUI? The companion suite(s) to the AngularJS framework. UI-Modules Standalone AngularUI modules.
What is Stencil? A reusable web component generator. Stencil combines some of the best features from traditional frameworks, but outputs 100% standards-compliant Custom Elements, part of the Web Component spec.
Stencil is an open source tool with 6.03K GitHub stars and 354 GitHub forks. Here's a link to Stencil's open source repository on GitHub.