UltraWide Fill — Remove Black Bars

About

Fill your ultrawide monitor completely — no more black bars on any video.

UltraWide Fill automatically detects and removes black bars on 21:9 and 32:9 monitors. One click and your screen is fully used on any streaming platform.

FEATURES

Auto black bar detection
Analyses the video frame and calculates the exact zoom needed to fill your screen. No guessing.

Aspect ratio presets
One click to switch between 16:9, 18:9, 21:9, and 32:9. Works for any monitor size.

Custom zoom slider
Drag the slider from 1.0x to 2.5x for precise control when you need something in between.

Keyboard shortcuts
Press Ctrl+Shift+U to cycle through presets. Ctrl+Shift+R to reset. No need to open the popup every time.

Per-site memory
Save your preferred setting for each website. The extension remembers your choice next time you visit.

Fullscreen support
Zoom stays applied when you go fullscreen. No resets, no flickering.

HOW TO USE

1. Install the extension
2. Go to any streaming site
3. Click the UltraWide Fill icon in your toolbar
4. Pick a preset or use the slider
5. Done — black bars are gone

FREQUENTLY ASKED QUESTIONS

Does it work with DRM protected content?
Yes. UltraWide Fill uses CSS zoom rather than reading video frames directly, so it works regardless of content protection.

Is it really free?
Yes, completely free. No premium tier, no trial, no upsells.

Will it slow down my browser?
No. The extension only activates on video pages and uses lightweight CSS transforms. No impact on browsing speed.

Does it work on every video site?
It works on any website that uses a standard HTML5 video player. Some sites with fully custom embedded players may not be supported.

What monitors does it support?
Any ultrawide monitor. Designed for 21:9 and 32:9 displays, but the custom zoom slider works for any aspect ratio.

PRIVACY

UltraWide Fill collects zero data. No analytics, no tracking, no accounts required. Your settings are stored locally on your device using Chrome's built-in storage. Nothing leaves your browser.