Youtube duration is a free Chrome extension developed by Sasha. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension provides a convenient way to calculate the total duration of all the videos in a playlist on YouTube.

With Youtube duration, users can easily determine the combined length of multiple videos in a playlist without manually adding up each video's duration. This can be particularly useful for content creators, researchers, or anyone who wants to plan their viewing time efficiently.

The extension seamlessly integrates into the Chrome browser, allowing users to access its functionality with just a few clicks. By simply opening a YouTube playlist and activating the extension, the total duration of all the videos in the playlist is displayed.

Overall, Youtube duration is a handy tool for YouTube users who want to quickly calculate the total time of videos in a playlist. Its straightforward interface and accurate calculations make it a valuable addition to any YouTube enthusiast's toolkit.