BEYOND POLYMER : A COMPARISON OF WEB COMPONENTS FRAMEWORKS The W3C has been working on a Web Components standard for almost three years, but it is still a work in progress. But polyfills like allows current developers to use Web Components today, and incorporate to their apps widgets from any library of web components. The best known of these libraries is Polymer, but it isn't the only one. In this talk we are going to compare Polymer, the '800 lb gorilla' in the Web Component field, with several of its lesser known competitors: Mozilla's X-Tags and Briks, and Bosomic. We will compare the catalogue of components, the difficulty of creating your own components using each library, and (of course) the performance cost of each solution. And we will take a look to the performances in both Chrome and Firefox.