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Chinese (Simplified) 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 Chinese speech into English captions and English speech into Chinese (Simplified) captions, on Windows and on Android.

Chinese (Simplified) captions as a Chinese video plays

Recorded in Wuai on Windows with the Pro speech model, not sped up: Chinese speech with Chinese (Simplified) captions, such as “见证了中国铁路的快速发展”, and no translation. Each line comes a moment after it is said; turn on Wait for captions and the video waits for it. Video: 20260702 告别绿皮车！青海西宁首次开行直达北京动集卧铺动车组列车 by 中国新闻社, CC BY 4.0, on Wikimedia Commons.

A Chinese video with English captions

Wuai on Windows: a Chinese video with English captions, “It is also our fleet's benchmark train for serving the people.” over “也是我们车队服务群众的标杆列车”.
Windows: 也是我们车队服务群众的标杆列车 → It is also our fleet's benchmark train for serving the people.

Video: 20260702 告别绿皮车！青海西宁首次开行直达北京动集卧铺动车组列车 by 中国新闻社, CC BY 4.0, on Wikimedia Commons.

An English video with Chinese (Simplified) captions

Wuai on Windows: a English video with Chinese (Simplified) captions, “我是凯瑟琳·陶特曼。” over “I am Catherine Trautmann.”.
Windows: I am Catherine Trautmann. → 我是凯瑟琳·陶特曼。
Wuai on Android: a English video with Chinese (Simplified) captions, “和民主党的社会主义和成员。” over “SND group Socialists and Democrats.”.
Android: SND group Socialists and Democrats. → 和民主党的社会主义和成员。

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 Chinese (Simplified) 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 Chinese (Simplified) on Windows and Android, and makes captions from Chinese 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.

More languages

Cebuano · Chinese (Traditional) · Every language · Captions in your language · Two captions at once