The Polymer library is in maintenance mode. For new development, we recommend Lit.

You're viewing an older version of the Polymer library documentation. Please see Polymer 3.0 for the latest.

This document is a list of miscellaneous services that you may find useful when creating Polymer elements.

Polygit is a proxy server for serving components from a CDN. It is not meant to be used for production apps, but is very useful when prototyping and sharing jsbins.


  <base href=""> <!-- saves typing! -->
  <script src="webcomponentsjs/webcomponents-lite.js"></script>
  <link rel="import" href="paper-button/paper-button.html">
  <link rel="import" href="iron-selector/iron-selector.html">

For more documentation, see


polystyle is a web service that can wrap an existing stylesheet on a remote server as Polymer style module. This is useful if you have a hosted third-party stylesheet that you want to use in an element or your application.


  <link rel="import" href="bower_components/polymer/polymer.html">
  <link rel="import" 
  <style is="custom-style" include="theme-styles">

For more information, see

Related tools

  • gulp-style-modules—3rd party Gulp plugin for wrapping local CSS files into style modules


polyicon is an online tool to generate an optimized custom icon set for your app, with only the icons that you need. Instead of loading entire sets, this tool creates a slimmer (custom) icon set that you can load and use in your app.

Try it out: