What are some alternatives?
When comparing CanJS and Angular.io, you can also consider the following products
Vue.js - Reactive Components for Modern Web Interfaces
FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.
Polymer - Polymer is a library that uses the latest web technologies to let you create custom HTML elements.
Beyond Compare - Beyond Compare allows you to compare files and folders.
Aurelia - Next gen JS framework written with ES6 and ES7. Integrates with Web Components. No external dependencies except polyfills.
PuTTY - Popular free terminal application. Mostly used as an SSH client.