Nobody reads subtitles. If you want to sell abroad, you need a video in your customers' language. Until now that meant hiring an agency, booking voice actors and waiting. A 10-minute product video costs €390 to €590 at a traditional agency and takes two to three weeks. And in the end, a stranger's voice speaks for your brand.
K4 VideoLingua translates your video into one of 27 languages. For a 10-minute video, that takes less than 15 minutes on average. The person speaking in the original keeps speaking in the translation: the AI picks up the spoken text, translates it and carries the pitch and intonation of the original voice over into the target language. Your customer in Tokyo hears the same person as your customer in Hamburg, and has the same reason to trust them.
How it works
1. Paste the video URL: a YouTube link or a direct link to the video file. The video has to be publicly accessible.
2. Choose the source language, the target language and the number of speakers in the video.
3. The translated video arrives by email, as a file or a link.
You don't need a recording studio for this, and you don't need an agency.
Who VideoLingua is for
- Online shops that want to use their product videos in new markets
- Manufacturers who export and need to explain their products abroad
- Marketing agencies running campaigns across several countries
- YouTubers who want to reach viewers in other languages
It works best for screencasts, explainer videos, product presentations and voice-over videos. Typical uses are product videos and ads, internal communication for international teams, employee training videos and content for social media and YouTube. If someone speaks facing the camera for the whole video, run a test first.
Languages
You can choose from 27 languages, including English, Spanish, French, Italian, Portuguese, Dutch, Polish, Turkish, Russian, Arabic, Chinese, Japanese and Korean. There is no limit on how many videos you translate or into how many languages.
Pricing
Each video costs a flat €99, as long as it is no longer than 15 minutes and no larger than 200 MB. The first 20 seconds are translated for free, so you can hear how your voice sounds in the target language before you pay. Voice cloning works best with clear standard speech. If you speak with a strong accent or dialect, try the free test first. A manual quality check is available as an optional extra, and for large projects there is an enterprise version that lets you review the transcript before the voice-over is produced.
Your data
Product videos often contain confidential information. VideoLingua processes your videos only for the translation and does not use them to train public AI models.
Who is behind it
VideoLingua is a product of KONTOR4 GmbH, a German digital agency. It was founded by Dirk Pache, founder and managing director of KONTOR4. The tool has been online since March 2026, in German and English.
