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

Vietnamese captions as a Vietnamese video plays

Recorded in Wuai on Windows with Plus, the free speech model, not sped up: Vietnamese speech with Vietnamese captions, such as “là mang động cơ chính trị.”, and no translation. Each line comes a moment after it is said; turn on Wait for captions and the video waits for it. Video: Tân Thủ tướng Malaysia sẵn sàng ân xá lãnh tụ đối lập (VOA) by VOA Tiếng Việt, Public domain, on Wikimedia Commons.

A Vietnamese video with English captions

Wuai on Windows: a Vietnamese video with English captions, “The allegations are condemned by” over “Những cáo buộc bị dư luận lên”.
Windows: Những cáo buộc bị dư luận lên → The allegations are condemned by

Video: Tân Thủ tướng Malaysia sẵn sàng ân xá lãnh tụ đối lập (VOA) by VOA Tiếng Việt, Public domain, on Wikimedia Commons.

An English video with Vietnamese captions

Wuai on Windows: a English video with Vietnamese captions, “Tôi là Catherine Trautmann.” over “I am Catherine Trautmann.”.
Windows: I am Catherine Trautmann. → Tôi là Catherine Trautmann.
Wuai on Android: a English video with Vietnamese captions, “Tôi là Catherine Trautmann.” over “I am Catherine Trautmann.”.
Android: I am Catherine Trautmann. → Tôi là 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 Vietnamese 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 Vietnamese on Windows and Android, and makes captions from Vietnamese 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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