Video Brightener — Brighten Dark Video Scenes

Brightens dark, hard-to-see scenes in videos. Works in fullscreen and on DRM-protected streaming, with zero external communication.

■ The problem this solves - Dark scenes in gameplay streams you just can't see - Movie and TV scenes too dark to make out the details - Crushed shadows in horror-game streams — you can't tell what's happening - Turning up your monitor only makes everything else glaring ■ What Video Brightener does - Uses gamma correction to lift only the dark areas - Built-in contrast adjustment prevents a washed-out look - Independent sliders for brightness and contrast - Four one-click presets (Low / Medium / Strong / Max) - Works in fullscreen, where many similar extensions fail - Works on DRM-protected streaming ■ Privacy - No communication with external servers, ever - Never reads the pixel data of your video - Stores only three settings: on/off, brightness, contrast - No analytics, no tracking ■ Limitations - Filters do not apply in Picture-in-Picture mode (a platform limitation) - On some hardware-acceleration setups the filter may not take effect ■ How it works (for the technically curious) A two-stage SVG filter (feComponentTransfer): gamma correction plus linear contrast. It runs on the GPU compositing path, so even 4K60fps video adds virtually no load. It never draws video frames to a canvas, so it works under Widevine and other DRM. ■ Contact Bugs and requests: darumado.inc@gmail.com