Underlay

Make the internet yours. Underlay transforms the way you experience the web. Customize platforms with your style, colors and icons.

Underlay The same pages. Your look. Underlay lets you restyle the sites you already live in, so ChatGPT, Claude, YouTube, Twitch and many more. Feel like they were made for you. Set a background and make it yours. Use a still image, a GIF or a short video. Soften the page with glass and blur, or keep it clean. Change the text, the menus, the buttons and the icons. Pick a font that fits the mood. Hover a title and give it your color. Start from a ready-made template, or build the look from scratch. On YouTube and Twitch, the page can follow the video. Light shifts with the picture, so the room around it feels like part of the film. Underlay does not provide the content on those pages. It only changes how they look in your browser. Your chats, videos and streams stay where they are. The style is yours.