Video Speed & Playback Control — Tach

About

Watch everything at your speed.

Tach sets your preferred playback speed automatically on every site that uses HTML5 video — no more reaching for the player menu on each new tab. When you want to adjust on the fly, a clean popup gives you a slider, +/- buttons, one-click presets, and keyboard shortcuts. Go from a frame-by-frame 0.01× crawl all the way up to a 4.0× sprint.

FEATURES

• Default speed on every site — pick it once, it applies everywhere.
• Quick manual control — drag the slider (snaps to 0.25), nudge by 0.05 with +/-, or tap a preset (0.5×–2×, fully editable).
• Keyboard shortcuts — speed up, slow down, or reset without opening the popup.
• Per-site memory — remember a different speed for, say, YouTube vs. your lecture site; it sticks for that domain.
• Frame-by-frame slow motion — drop all the way to 0.01× to crawl through the exact moment you need (a sports replay, a tutorial step, a tricky dance move), then back up to 4.0× to power through the slow parts.
• YouTube cleanup (optional) — hide Shorts, hide comments/live chat, keep chat out of fullscreen, and skip ads by seeking past them.
• Copy Transcript — grab a YouTube video's transcript to your clipboard in one click (with optional timestamps).
• Looks the way you like — light/dark/auto theme and a custom accent color.

PRIVATE BY DESIGN

Tach has no analytics, no tracking, and makes no external network requests. Your settings live in your browser and sync through your own account — they are never sent to us. Read the full policy: https://domdhi.github.io/Domdhi.Tach/

Free, open source (MIT), and open about exactly what it does.