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Portuguese 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 Portuguese speech into English captions and English speech into Portuguese captions, on Windows and on Android.

Portuguese captions as a Portuguese video plays

Recorded in Wuai on Windows with Plus, the free speech model, not sped up: Portuguese speech with Portuguese captions, such as “E o meu contato com eles é em português,”, 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- Freddie speaking Portuguese by Wikitongues, CC BY 3.0, on Wikimedia Commons.

A Portuguese video with English captions

Wuai on Windows: a Portuguese video with English captions, “I was born in São Paulo, grew up in São Paulo,” over “Nasci em São Paulo, cresci em São Paulo,”.
Windows: Nasci em São Paulo, cresci em São Paulo, → I was born in São Paulo, grew up in São Paulo,

Video: WIKITONGUES- Freddie speaking Portuguese by Wikitongues, CC BY 3.0, on Wikimedia Commons.

An English video with Portuguese captions

Wuai on Windows: a English video with Portuguese captions, “Sou Catherine Trautmann.” over “I am Catherine Trautmann.”.
Windows: I am Catherine Trautmann. → Sou Catherine Trautmann.
Wuai on Android: a English video with Portuguese captions, “Eu sou Catherine Trautmann.” over “I am Catherine Trautmann.”.
Android: I am Catherine Trautmann. → Eu sou 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 Portuguese 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 Portuguese on Windows and Android, and makes captions from Portuguese 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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