SweetieCinema for YouTube

SweetieCinema for YouTube makes watching videos feel more like the cinema, with soft ambient light around the player, an IMAX-style glowing wall, and sound modes such as Cinema, Vocal, 3D Surround and Nightcore. It is designed to be simple: pick a display mode and a sound mode, adjust to your taste, and your settings are remembered. Everything runs locally in your browser, with no accounts, tracking or ads.