UltraWideo – Remove Black Bars & Fit Any Video to Your Screen

Remove black bars from any video. Fit any video to your entire screen on any video platform — automatically.

UltraWideo is the cross-browser extension that manipulates video aspect ratio to fill your screen. Whether you own an ultrawide monitor (21:9, 32:9), a standard 16:9 display watching 4:3 videos, or anything in between — UltraWideo eliminates black bars and gives you a true full-screen experience.

Why UltraWideo over other extensions?

Unlike alternatives that break on certain platforms or stop detecting videos, UltraWideo is proven to work on all major video streaming platforms, including embedded videos across the web. No "video not detected" errors. No broken layouts on non-video pages. It only activates when there's a video to work with.

▸ Works everywhere — any streaming service, any site with embedded video, any platform. Not limited to a single site.

▸ Blazingly fast — written in plain JavaScript with a tiny footprint. No memory leaks, no background processes draining your battery, no performance degradation over time.