LLPlayer is an open-source media player designed specifically for language learning through video content. Unlike traditional media players, the application focuses on advanced subtitle-related features that help learners understand and interact with foreign language media more effectively. The player supports dual subtitles so users can simultaneously view text in both the original language and their native language while watching videos. It can also automatically generate subtitles in real time using speech-to-text systems such as Whisper, allowing subtitles to be created even when none are available. Real-time translation capabilities enable subtitles to be translated using multiple translation engines and language models. Additional tools such as instant word lookup, contextual translation, and subtitle search allow learners to interact with the text while watching videos.

Features

  • Dual subtitle display supporting multiple subtitle formats
  • Real-time AI subtitle generation using speech-to-text models
  • Live subtitle translation using multiple translation engines
  • Word lookup and dictionary search directly from subtitle text
  • Optical character recognition for extracting subtitles from images
  • Integration with online video sources using yt-dlp

Project Samples

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License

GNU General Public License version 3.0 (GPLv3)

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Additional Project Details

Programming Language

C#

Related Categories

C# Large Language Models (LLM)

Registered

2026-03-05