Detect, translate, search, customize, and control subtitles while you watch videos across your favorite platforms.
Product Tour
A step-by-step visual look at real features in action.
Automatically detect available subtitle streams on supported video players, or drop your own custom SRT/VTT file. Translate into your language or show dual captions side-by-side.
Take control of every subtitle. Create reusable profiles to replace terms, skip subtitle segments, or mute words instantly while watching videos across YouTube, Crunchyroll, and supported platforms.
Fix out-of-sync subtitles in seconds. Adjust timing with global offset, one-click audio sync, or two-point drift correction across the entire video.
Convert subtitles into real-time audio playback while watching. Choose from supported voice engines, adjust playback speed, and sync voice with video timing.
Search for any keyword, phrase, or dialogue inside the entire video. Jump immediately to exact timestamps with a single click — perfect for tutorials, lectures, and long videos.
Make every video look better. Adjust brightness, contrast, and color saturation in real-time while watching.
Make quiet videos louder. Boost audio volume with a single slider for clear, distortion-free sound.
Compatibility
Compatible with modern HTML5 video players across popular streaming sites.
*File upload mode supported when direct subtitle streams are protected.
Get Started
Install VoxSub on Microsoft Edge and Firefox. Fast, lightweight, and customizable.