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German and English captions, translated as the video plays

Wuai is a free app for Windows and Android that captions the videos you watch and translates the captions in real time, on your device. These screenshots show it turning German speech into English captions and English speech into German captions, on Windows and on Android.

German captions as a German video plays

Recorded in Wuai on Windows with Plus, the free speech model, not sped up: German speech with German captions, such as “wie gut kennst du denn Deutschland?”, and no translation. Each line comes a moment after it is said; turn on Wait for captions and the video waits for it. Video: WIKITONGUES- Gereon speaking German by Bogreudell, CC BY-SA 4.0, on Wikimedia Commons.

A German video with English captions

Wuai on Windows: a German video with English captions, “Many might only know Berlin” over “Viele kennen vielleicht nur Berlin”.
Windows: Viele kennen vielleicht nur Berlin → Many might only know Berlin

Video: WIKITONGUES- Gereon speaking German by Bogreudell, CC BY-SA 4.0, on Wikimedia Commons.

An English video with German captions

Wuai on Windows: a English video with German captions, “Ich bin Catherine Trautmann.” over “I am Catherine Trautmann.”.
Windows: I am Catherine Trautmann. → Ich bin Catherine Trautmann.
Wuai on Android: a English video with German captions, “Ich bin Catherine Trautmann.” over “I am Catherine Trautmann.”.
Android: I am Catherine Trautmann. → Ich bin Catherine Trautmann.

Video: Trautmann, Catherine (en) by Manuel Schneider, CC BY 3.0, on Wikimedia Commons.

How to

  1. Open the video in Wuai: go to its website, or paste its link. A video file works too.
  2. Turn on captions: Captions beside the video on Windows, CC on Android.
  3. Under Spoken language, keep Auto-detect or choose the language spoken.
  4. Turn on Translate captions and choose German or English under Translate to.
  5. Under Show, tick Original too to see both lines, as here.

Download free See it work

Where

Wuai translates captions into German on Windows and Android, and makes captions from German speech on both. See every language.

Shot on November 1, 2026 with Wuai Pro switched on, the captions as Wuai made them. Other speech and translation models' captions can differ. Android and Windows translate 30 minutes of video for free; iPhone and Mac require Pro for translation.

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