VideoAce — Universal Video Controller, Speed, Boost, Screenshot

About

Take control of any HTML5 video on any website.

VideoAce gives you a single, minimal floating HUD that appears on
every video — YouTube, Coursera, Twitch, Vimeo, MOOCs, your local
mp4 file, anywhere. Eleven professional features. Zero clutter on
sites that don't need it. 100% local.

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THE 11 FEATURES

⚡  SPEED — 0.07× to 16× in fine 0.1 steps. Eight preset speeds one
    tap away (0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 3, 4, 8). Click the
    speed badge to cycle. Press 0/1/2/3/4 for direct preset jumps.

📷  SCREENSHOT — capture the current frame as PNG. Saved straight
    to your Downloads. (DRM-protected players block this — VideoAce
    gracefully tells you instead of failing silently.)

🎞️  FRAME STEP — paused-video frame-by-frame in both directions.
    Useful for screenshots of specific moments, tutorials, or
    inspecting motion.

🔁  A-B LOOP — set point A, set point B, video loops between them
    automatically. Indispensable for music practice, language
    immersion, or re-watching tricky lecture moments.

🪟  PICTURE-IN-PICTURE — float the video on top of every other
    window. One key (P).

🥷  BOSS KEY — instantly hides every video behind a plain "Loading…"
    page. Pauses them so audio stops too. Press again to come back.

⏭️  SKIP 10 SECONDS — the universal ad-skip shortcut. Built in.

⭐  BOOKMARKS — flag interesting moments. Recall them with a keystroke.

🎛️  PER-SITE MEMORY — your preferred playback speed sticks per
    website. Watch lectures at 1.5× and short clips at normal,
    automatically.

🎨  FLOATING HUD — a small, draggable, scale-able heads-up display.
    Shadow-DOM isolated so the host site's CSS can't break it.
    Auto-hides on toggle (V). Only ONE HUD ever visible — the active
    video's — even on sites with multiple <video> elements.

⌨️  FULLY REBINDABLE — every keyboard shortcut can be customised in
    the options page. Including modifiers.

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KEYBOARD SHORTCUTS

  S / D    Slower / faster (0.1 step)
  R        Reset to 1×
  G        Custom speed prompt
  0–4      Direct preset (0.5× / 1× / 2× / 3× / 4×)
  , / .    Previous / next frame (when paused)
  A / B    Set loop start / end
  C        Clear A-B loop
  X        Screenshot frame
  P        Picture-in-Picture
  Z        Skip 10 seconds
  M        Bookmark current time
  V        Show / hide HUD
  \        Boss key (instant hide all videos)

All rebindable in the options page.

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WHY PEOPLE LOVE IT

🔐  100% local. No analytics, no telemetry, no account, no server.
    Verify in chrome://extensions → Inspect — zero fetch() calls in
    our code.

🎯  Works EVERYWHERE there's a <video> tag. We detect SPA navigation,
    dynamic player swaps (YouTube quality change), and even videos
    inside same-origin iframes (Coursera, Khan Academy).

⚡  Zero performance penalty. The HUD is plain CSS in a shadow root.
    Idle CPU: 0%.

🎨  Modern UI. Cyan-purple gradient. Drag the HUD anywhere — its
    position is remembered per site.

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QUICK START

1. Install
2. Open any video site (YouTube, Coursera, Twitch, anything with a
   <video> tag)
3. The HUD appears on the player. Press V to hide / show.
4. Speed up with D, slow down with S. Try 0/1/2/3/4 for instant
   preset speeds.

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LANGUAGES

English · Türkçe · Deutsch (auto-selected by browser locale)

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PART OF AION EXTENSIONS

VideoAce is part of the AION Extensions family — 22 premium browser
tools, all privacy-first, ad-free, account-free:

• PDFTouch — edit, sign, OCR, merge PDFs entirely in-browser
• CaptureKit — screenshots + screen recorder + GIF export
• LinguaLens — learn languages from Netflix / YouTube subtitles
• AION Ad Blocker — EasyList + AdGuard, 300k+ rules
• ClipFlow — P2P clipboard between desktop & phone
• NoiseSquelch — AI mic noise suppression
• …and 16 more at aionextensions.pages.dev