YouTube Auto-Resolution & Repeater


YouTube Auto-Resolution & Repeater
A lightweight Chrome extension (Manifest V3) that cuts bandwidth by dynamically switching YouTube resolution based on tab focus, with an A-B section repeater.
- Instant Focus-Based Quality Switch: Drops resolution to 144p when backgrounded to save data, and instantly restores up to 4K/8K on focus
- MSE Buffer Flush: Immediate seek-flushing eliminates YouTube's 30–40s pre-buffer delay for real-time quality changes
- A-B Song Section Repeater: Loop specific choruses or segments with live repeat counters and infinite loop support
- Custom Playback Speed Engine: Enforces custom speeds (0.25x – 3.0x) with zero interference with YouTube's native menu
- Smart Fallback: Automatically selects the closest resolution if the requested quality is unavailable
- Chrome Extension API
- Manifest V3
- JavaScript
- HTML5 Video API