Simplify Twitter Web UI is a free Chrome add-on developed by lukeed. As the name suggests, this add-on aims to simplify the new Twitter Web UI by making some changes to the layout and hiding certain elements.

The add-on addresses the issue of the 3-column layout, which some users find too busy. By applying this add-on, the layout becomes cleaner and less cluttered, allowing for a more focused and streamlined user experience.

Another feature of Simplify Twitter Web UI is the ability to hide the "Trending For you" section, which is usually located in the right sidebar. This can be useful for users who are not interested in trending topics and prefer to have a cleaner interface without this distracting element.

Additionally, the add-on attempts to hide "Promoted Tweets", although it is worth noting that this feature may not always be effective.

For more information and to download Simplify Twitter Web UI, please visit the developer's website.