The Polymer library is our original web components library.
For new projects, we recommend starting with our next-generation web components library, LitElement. LitElement is a smaller, lighter successor to the Polymer library.
For existing Polymer apps, we recommend upgrading to version 3.0 of the Polymer library.
Starting a new project? Try our next-gen products:
An ultra-light, highly performant custom element base class with a simple but expressive API.LitElement
Pixel-perfect realizations of Google's Material Design spec that work anywhere on the web.Material Web Components