UltraBoost
Universal Video Enhancer
Enjoy videos the way they were meant to be seen and heard — on any site.
A floating control panel that adds zoom, speed, volume boost, filters, HD screenshots, and section-loop to any HTML5 video player on the web.
UltraBoost is a universal video enhancer that drops a draggable control panel onto any HTML5 video player — YouTube, Vimeo, news sites, learning platforms, anywhere. No popup, no friction. Just better video, instantly.
Smart zoom & centering
Removes black bars on ultrawide videos. Choose Auto, Fill, or custom zoom. Works on every site with an HTML5 player.
Playback speed
From 0.25× to 5× with one click. Slow down a tutorial. Speed through a lecture. Or push past what the site's own controls allow.
Volume boost
Up to 5× louder than the system maximum. Powered by the Web Audio API for clean, distortion-free amplification on quietly mixed videos.
HD screenshot & loop a section
Capture any frame at the video's full native resolution — saved as a watermark-free PNG with one click. Or set a start and end point and replay any clip on repeat: perfect for language practice, music transcription, or studying technique.
The small touches that add up.
Quality-of-life features that make every video session smoother.
Ad-Speeder
Automatically fast-forwards ads on supported video platforms. Get back to the content quicker.
Video filters
Ready-made presets (Vivid, Film, Noir, Warm, Cool) or fine-tune brightness, contrast, saturation, and more with custom sliders.
Works everywhere
Any site with a standard HTML5 video player. UltraBoost just works — no per-site configuration.
Keyboard shortcuts
Single-key shortcuts that don't fight with the page. Remap any of them at chrome://extensions/shortcuts if they conflict with another extension.
- Toggle UltraBoost on/offV
- Show / hide the panelP
- Cycle zoom modesN
- Toggle ambient lightB
Yours alone.
UltraBoost runs entirely in your browser. No accounts. No tracking. No data leaves your device. Period.