Speeding - Video Speed Controller

Adjust video speed from 0.5× to 16× on any site. Works on YouTube, Bilibili, Netflix, Udemy, and more.

remembers your preferred speed for every website — binge a 40-episode drama in half the time, breeze through online lectures, or slow down tricky tutorials, all without chipmunk voices. Set it once and it just works. Unlike other speed controllers that forget your settings or distort audio, Speeding uses per-site memory and always-on pitch preservation so your content always plays the way you want. Scene presets make the first run effortless: 16x for course study, 1.25x for series bingeing, 0.75x for foreign listening. Popular platforms — Bilibili, Netflix, Coursera, YouTube, and 40+ more — are pre-matched to a scene. Every preset is editable, and custom scenes are easy to add. Key Features: - Per-site speed memory — each website remembers its own speed automatically - Scene presets — 16x course study, 1.25x series bingeing, 0.75x foreign listening, each fully customizable - Pre-matched sites — Bilibili, Netflix, Coursera, YouTube, and 40+ more auto-select a scene - "This site", "Scenes", or "All sites" mode — per-domain, per-scene, or global speed - Pitch-preserving audio — voices and music stay natural at any speed - Ultra-wide range — from 0.5x slow-mo to 16x hyper-speed - Works everywhere — Bilibili, YouTube, Netflix, Vimeo, Coursera, and any site with `<video>` elements - Privacy-first — no tracking, no telemetry, data stored locally only - One-click popup — no signup, no configuration