Aspect Ratio & Volume Booster for YouTube™

Aspect ratio, screen resizer & 2x/3x volume booster for YouTube. Crop black bars, zoom, stretch, and boost quiet video audio.

Resize YouTube videos your way and make quiet audio easier to hear. Aspect Ratio & Volume Booster for YouTube™ adds simple in-player controls for video aspect ratio, fit modes, zoom, stretch, pan, and audio boost. Choose from common aspect ratios including 16:9, 16:10, 18:9, 21:9 ultrawide, 32:9 super ultrawide, 4:3, 1:1, and 9:16. Use Fit to preserve the original view, Fill/Crop to reduce black bars, or Stretch to fill the player. Fine-tune the result with zoom, horizontal and vertical stretch, and vertical-position controls. For quiet videos, podcasts, tutorials, and dialogue, select 1x, 2x, or 3x volume boost. The extension uses a dynamics compressor to help manage louder peaks while boosting audio. Controls are available from the YouTube player and the extension popup. Your preferences are saved locally and can be retained across videos. Use Cmd/Ctrl + Shift + A to cycle aspect-ratio presets quickly. Features: • Aspect-ratio presets for standard, vertical, ultrawide, and classic video formats • Fit, Fill/Crop, and Stretch viewing modes • Zoom, stretch, and vertical-pan adjustments • Up to 3x audio boost for quiet YouTube videos • In-player controls, popup controls, and keyboard shortcut • Local-only preference storage