ReadFast powered by Spritz is a Chrome extension that helps users read faster. It utilizes the official Spritz technology to improve reading speed. The extension works on any page with text content and allows users to simply double-click on the text they want to read to start Spritzing. Alternatively, they can select the text and use the context menu to start Spritzing. If no text is selected, the entire page will be Spritzed.

One of the key features of ReadFast is its configurable reading speed. Users can adjust the speed via a slider to suit their preferences. The extension also offers a pause feature, which can be triggered by a click anywhere in the popup or by pressing the CTRL key. Users can also rewind one sentence using the LEFT arrow key.

ReadFast can be easily customized to meet individual needs. Users have the option to change most of the colors, add a progress bar, configure font size, hide the background, and adjust the vertical position. The extension also provides an options menu to configure keyboard shortcuts and other settings.

Overall, ReadFast powered by Spritz is a useful tool for anyone looking to improve their reading speed. It offers a seamless reading experience and can be easily customized to suit individual preferences.