vCaptions

Add smart captions lists to any website video. Supports YouTube and Bilibili with translation, chapters and AI summaries. vCaptions is the ultimate AI video assistant and subtitle translator. It transforms how you watch online videos by generating interactive transcripts, providing AI-powered summaries, and enabling dual-language subtitles for effective learning.

Whether you are a researcher, a student learning a new language, or just want to save time, vCaptions helps you digest video content 10x faster on YouTube, Bilibili, and any website with HTML5 video.

⭐ Key Features

• Interactive Video Transcript: View the full subtitle list alongside playback. Click any caption line to instantly jump to that specific timestamp.
• AI Summary & Chat (ChatGPT powered): Don't have time to watch the whole video? Get instant video summaries, key takeaways, and ask the AI questions about the content directly.
• Dual Subtitles & Translation: Break language barriers with real-time subtitle translation. Enable dual captions (native + translated) for seamless language learning and comparison.
• Smart Chapter Extraction: Automatically detect topics and generate video chapters for easy navigation, even if the creator didn't add them.
• Subtitle Downloader: Easily copy captions to your clipboard or export subtitles as .SRT, .VTT, or .TXT files for offline use.
• Flexible Layouts: Choose your preferred viewing mode — Sidebar, Floating Window (Picture-in-Picture style), or Embedded mode. The floating panel is fully resizable and draggable.
• Customizable UI: Full Dark Mode support and font size adjustments for comfortable reading.

🎯 Optimized for Major Platforms

• YouTube: Best-in-class support for YouTube videos, embedded players.
• Bilibili: Optimized experience for Bilibili videos.