LoopIt – スマートビデオルーパー

正確なA-Bリピートで任意の動画セグメントをループ。YouTube、Shorts、Facebook Reelsなど。無料、軽量、プライベート。

🎯 Loop Any Video Segment — A-B Repeat & Video Looper for YouTube, HTML5 & More LoopIt is a powerful yet lightweight video looper that lets you loop any part of an HTML5 video with precise A-B repeat control. Set a custom start and end time, press Start, and instantly repeat a video segment as many times as you need. Whether you're using it as a language learning tool, study aid, music practice tool, or movement analysis helper — LoopIt gives you full control over video playback. Perfect for: 🎸 Guitar & instrument practice 🗣 Pronunciation practice & language learning 🎓 Online courses & lecture review 💃 Dance choreography breakdown 🧠 Focused study sessions 🎬 Frame-by-frame video analysis If you're looking for a YouTube looper, A-B repeat extension, or a simple way to loop video segments on any website — LoopIt is built for you. ───────────────────────────────── ⚡ Core Features — Precision Video Looping ▸ A-B Repeat (A-B Loop) Set exact start and end points and repeat a video segment continuously until stopped. ▸ Loop Counter Repeat a section a specific number of times or loop infinitely. ▸ Favorites Save frequently used loops and replay them instantly. ▸ Watch History Track recently looped videos with play-count statistics. ▸ Shareable Loop Links Generate a link that auto-starts your loop for anyone. ▸ Export / Import (JSON Backup) Transfer saved loops between devices. ▸ Previous / Next Navigation Move through Favorites or History without losing context. ───────────────────────────────── 🎨 Clean, Minimal Interface ▸ Draggable Control Panel Move it anywhere on screen. Position is remembered. ▸ Minimized Mode Compact preview with thumbnail, loop range, and controls. ▸ Pin / Unpin Panel Control whether the extension auto-opens on video pages. ▸ 3 Themes Dark · Light · Blue. ▸ System Dark Mode Support Auto-syncs with your OS preference. ▸ 16 Languages English, Polish, Bengali, French, Spanish, Portuguese (Brazil), Russian, Hindi, German, Japanese, Indonesian, Korean, Turkish, Italian, Dutch, Arabic (auto-detected). ───────────────────────────────── ⌨️ Keyboard Shortcuts Ctrl + Shift + S — Start A-B loop Ctrl + Shift + X — Stop loop Ctrl + Shift + L — Toggle control panel ───────────────────────────────── 🌍 Works On YouTube YouTube Shorts Vimeo Facebook Reels Any website using an HTML5 video player LoopIt works as a universal HTML5 video loop extension — not limited to one platform. ───────────────────────────────── 🔒 100% Privacy-First No data collection. No analytics. No tracking. No remote servers. Everything stays in your browser. Open-source and fully auditable. ───────────────────────────────── 🪶 Lightweight & Fast Under 50 KB. No background processes. Activates only when a video is detected. A fast, distraction-free video repeat tool built for performance. ───────────────────────────────── ✨ What's New — v1.7.1 🔧 Speed Control — Polished & Predictable • Pin-aware speed persistence — speed persists when panel is pinned, resets to 1.0× when unpinned • Manual speed changes (slider, buttons, presets) are saved immediately — your last choice always wins • Navigation and page reload correctly reset speed when panel is not pinned • Speed state no longer leaks between sessions ⌨️ Keyboard Shortcuts Redesigned • Changed to Ctrl+Shift+S/X/L to avoid conflicts with diacritical characters (ł, ś, etc.) • Shortcuts now skip input fields — no more accidental triggers while typing 🌍 16 Languages Supported • English, Polish, Bengali, French, Spanish, Portuguese (BR), Russian, Hindi, German, Japanese, Indonesian, Korean, Turkish, Italian, Dutch, Arabic ✨ What's New — v1.6.0 🌍 Localized Error Messages • Validation errors now display in your language (EN/PL) 🔒 Smarter Input Validation • "Start Loop" disabled until both times are valid 🖼️ Clickable Mini Thumbnail • Thumbnail in compact mode links to the video 🔧 Previous Fixes (v1.5.0) • Pin/UnPin — correct auto-open behavior