YouTube Resizer is a free Chrome add-on developed by Jaemin Jo that allows users to resize and move YouTube videos to fit their screens. Say goodbye to annoying margins and enjoy a customized viewing experience!

This extension focuses on resizing the video itself, not the player frame. To get started, simply navigate to a video page on YouTube and click on the app icon. From there, you can toggle the Resizing switch to "on" and configure the settings to your liking. The values can be adjusted using your mouse wheel.

Once you've set your preferences, the settings will automatically be applied to the next video you watch. If you ever want to disable the resizing feature, simply toggle the Resizing switch to "off".

With YouTube Resizer, you can finally say goodbye to those pesky margins and enjoy your favorite videos in a customized format that suits your screen perfectly.