Speedio is a free Chrome extension developed by Cosmocal. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory. Speedio allows users to control video playback speed with convenient keyboard shortcuts.

With Speedio, users can easily adjust the playback speed of HTML5 videos. By pressing "Alt + <" on the keyboard, users can slow down the video, while pressing "Alt + >" will speed it up. This handy feature makes it effortless to find the perfect playback speed for any video.

The extension is compatible with all HTML5 video elements, ensuring that users can use it on various websites. Whether you want to watch videos in slow motion at 0.25x speed or speed them up to 16x the original speed, Speedio provides the flexibility to do so.

With its simple and intuitive functionality, Speedio is a valuable tool for anyone who wants more control over their video watching experience.