SubFlex - Smart Subtitle Controller & Sync

Control video subtitles with dynamic multi-point sync for cut scenes, speed adjustment, and floating dialogue scrubber.

SubFlex is the smart subtitle controller, synchronization tool, and streaming companion for your browser. Tired of subtitles drifting out of sync, or videos where trimmed scenes break the timing? SubFlex fixes subtitle timing with 1-click visual tools and translates speech in real time. ✨ KEY FEATURES: ⚡ Cut-Scene Sync Anchors Traditional subtitle tools only allow a single global delay. If a video cuts a song or scene, subtitles break. With SubFlex, click "Sync Here" at any cut to lock dialogue to that exact scene! 📜 Visual Dialogue Scrubber Search spoken dialogue in an interactive transcript drawer, see active lines highlighted, and click any sentence to snap playback into instant sync. 🌐 Zero-Lag Live Dialogue & Translation Enjoy real-time captions and on-the-fly speech translation into 19 global languages. 100% private — zero microphone or audio access required. 🎬 Where to Watch Streaming Finder Watch trailers or clips and instantly discover where the full movie is available across licensed streaming platforms and free-to-watch services. 📁 16M+ Online Subtitles & Drag-and-Drop Drag and drop any local .SRT or .VTT file onto the video, or search millions of subtitles online with 1-click loading. 🎛️ Floating Cinema HUD Control subtitle offset, speed drift, font size, and colors directly on the video player without leaving fullscreen. 🔒 100% Private & Safe Runs entirely in your browser memory. No audio recording, no tracking, and zero personal data collection.