Dual Subtitle Player

The problem

You’re watching content in a foreign language and want to compare different subtitle versions (original vs. translated) without constantly switching video tracks or opening multiple players. Also, maybe you want a lightweight solution that works offline and respects your privacy by keeping everything local.

Setup

Simply download the HTML file and open it in your browser OR visit the website: Link:

• Load your video file using the “Open Video” button
• Add your first subtitle file (.srt format) using the “Open SRT” button under “Subtitle 1”
• Add your second subtitle file using the “Open SRT” button under “Subtitle 2”
• Use the ‘S’ key or the toggle button to switch between subtitle files while watching

Functionality

• Press ‘S’ key to instantly toggle between both subtitle files
• Click the “Switch Subtitle” button for the same effect
• Enter fullscreen mode while keeping subtitle switching capabilities
• Works with standard SRT subtitle files and common video formats
• Everything runs locally in your browser — no data sent to any servers… nice
• No installation or dependencies required

Where to access it

Project available on GitHub: https://github.com/KyattPL/dual-subtitle-player Website available at: Link

Download the HTML file and open it directly in any modern browser. No server required!

Use cases

• Language learners: Toggle between native language and target language subtitles
• Film students: Compare different translations or subtitle versions
• Accessibility: Choose the most helpful subtitle version for your needs
• Translation study: See how the same content is translated differently

Technical details

Built with pure HTML5, CSS3, and JavaScript for maximum compatibility. The player parses SRT files into time-indexed objects and synchronizes display with video playback, allowing seamless switching between subtitle arrays based on user input.

Simple, lightweight, and privacy-focused!