Create and edit notes, highlights, and bookmarks.Customize your reading experience by choosing font size, text color, background color, number of reading columns, and more.The web app gives you access to all your online Kindle books and offers many settings and features, including: It's officially released as a browser plugin for Google Chrome (this extension, however, doesn't work in the new Edge for whatever reason).

Amazon's Kindle Cloud Reader is, at its heart, a simple web app that accesses your Kindle library.