TrangoPlayer

TrangoPlayer is a desktop video player built for learning a language by watching videos with subtitles.

You open a video together with a subtitle file, and TrangoPlayer can play it in two ways:

• Normal mode — a regular video player: continuous playback with a scrub bar, like any other video app.
• Sentence-by-sentence mode — built specifically for language learners. The video is driven by the subtitle timing instead of the clock: one key jumps to the next line, another replays the line you're on as many times as you want, and a toggle reveals a translated line underneath the original so you can check your understanding without leaving the video.

If a video doesn't have a subtitle file yet, TrangoPlayer can generate one automatically (using speech recognition that runs entirely on your own computer), and it can look up a word-by-word translation and pronunciation guide for whichever sentence is currently on screen.

Where to go next

• Getting Started — install TrangoPlayer and open your first video.
• Using TrangoPlayer — the features above, one page each: playback modes, keyboard shortcuts, subtitles, automatic subtitle generation, word-by-word analysis, and settings.
• Developer Guide — for anyone working on TrangoPlayer's own code: architecture, design decisions, and the third-party libraries it's built on.

Everything runs on your computer

TrangoPlayer doesn't send your videos, subtitles, or viewing activity anywhere. Subtitle generation and word analysis both use software that runs locally — nothing is uploaded to a cloud service. See Generating subtitles automatically and Word-by-word analysis for what that software is and how to install it.