Guides for ultrawide monitors

A 21:9 or 32:9 monitor is great for games and work, and then a movie starts with black bars on every side. These guides explain where the bars come from on each service and how to fill the screen in Chrome with UltraFill, including what works differently on protected players.

Streaming services

• Netflix on a 21:9 monitorWhy Netflix leaves bars on all four sides and how to fill the screen.
• Prime Video on an ultrawidePick the format once, keep it per title, and get the sound tools working.
• HBO Max on 21:9 and 32:9Series in wide formats on an ultrawide monitor, without the bars.
• Disney+ on a 32:9 monitorThe hardest case: wide movies on a super ultrawide screen.
• Apple TV+ on an ultrawideWide original series and films on 21:9 and 32:9, on Windows or Mac.
• Paramount+ on 21:9 and 32:9New films, 1.85 catalogue titles and old 4:3 shows on a wide screen.
• Canal+ on a 21:9 monitorLive channels, sport and films from Canal+ on an ultrawide, without the bars.
• SkyShowtime on a 21:9 monitorSeries and films on 2560×1080 and other ultrawide screens in Europe.
• Hulu on an ultrawide monitorCurrent series, wide films and older 4:3 shows on 21:9 and 32:9.
• Peacock on 21:9 and 32:9Live sport with score graphics and wide films, each filled the right way.
• Crunchyroll anime on 21:9Most anime is 16:9. Honest options for filling a wider screen.

Video platforms

• YouTube on a 21:9 monitorAutomatic bar detection, zoom and elastic stretch for YouTube videos.
• YouTube full screen on 32:9A 16:9 video uses half of a super ultrawide. How to use the rest.
• Twitch streams on 21:9 and 32:9Live 16:9 streams, game HUDs and the full toolbox without DRM.

General guides

• Fix black bars on 21:9Every common movie format on a 21:9 screen, and how to remove the bars.
• Crop, stretch or elasticWhich fill mode looks best for movies, series, sport and old 4:3 shows.
• Aspect ratio changer for ChromeChange the format, zoom, framing and rotation of any video in Chrome.

Where to start

New to ultrawide? Read how to fix black bars on 21:9 first. It covers every common movie format and why a 16:9 stream leaves so much of the screen empty. If you are deciding between cutting and stretching the picture, the crop, stretch or elastic guide compares the three. For a quick feel without installing anything, open the live demo or check your own monitor in the black bar calculator.

UltraFill is an independent extension and is not affiliated with Netflix, YouTube, Disney+, Prime Video, HBO Max, Apple TV+, Paramount+, Canal+, SkyShowtime, Hulu, Peacock, Crunchyroll, Twitch or any other service mentioned in these guides. Service names are used only to describe compatibility.