YouTube Custom Playback is a Chrome extension that enhances the YouTube video player by adding custom playback speeds ranging from 2.25x up to 16x. The extension unlocks granular speed controls that go beyond YouTube's default options, allowing users to watch content at much faster or slower speeds than normally available.

The extension features an extended speed menu with speeds including 2.25x, 2.5x, 2.75x, 3x, 3.25x, 3.5x, 4.75x, 5x, 5.25x, 5.5x, 6x, 7x, 8x, 12x, and 16x. It provides native integration using the original YouTube design without overlays or floating buttons. Users can quickly toggle the custom features with a single switch via the extension icon, and a subtle "Max" badge indicates when pro speeds are active.

The extension works by integrating seamlessly into the native YouTube player settings, making it feel like a native feature rather than an add-on. It runs locally on the browser and is lightweight at less than 1MB in size with zero impact on page load performance.

Benefits include saving time by watching podcasts, vlogs, and news at accelerated speeds, studying smarter by slowing down fast-talking instructors, analyzing details in sports replays or gaming highlights at slower speeds, and skipping filler content at ultra-fast speeds. The extension helps users consume content more efficiently based on their specific needs.

The extension targets power-learners who need to watch lots of lectures, analysts who require frame-by-frame precision, and anyone wanting more granular control over YouTube playback speeds. It's designed as a Chrome extension that integrates directly with YouTube's platform.