Use Cases
September 19, 2025
Can I Translate My Entire YouTube Channel Automatically? Step-by-Step Guide

Can You Automatically Translate an Entire YouTube Channel?
Yes – with a combination of the YouTube API and the Dubly.AI API, you can systematically fetch, translate, and re-upload all your videos.
Important notes:
- YouTube currently does not offer high-quality automated dubbing with lip sync.
- With Dubly.AI, you can perform full bulk processing – including glossaries, voice cloning, lip sync, and GDPR compliance.
👉 The full Dubly API documentation is available on request via hello@dubly.ai.
Step-by-Step: Translating Your YouTube Channel with Dubly
1. Set Up Access to the YouTube API
- Create a project in Google Cloud Console
- Enable the YouTube Data API v3
- Get API keys or OAuth credentials
- With the API you can:
- Retrieve all videos from your channel
- Export metadata (titles, descriptions)
- Re-upload translated versions later
- Retrieve all videos from your channel
2. Translate Videos via the Dubly.AI API
- Connect your YouTube video data with the Dubly API
- For each video, configure:
- Target language(s)
- Lip Sync (applied at the very end for maximum quality)
- Voice Cloning (retain the original voice in other languages)
- Glossary & Custom Prompts for brand-specific terminology
- Native Speaker Control (optional) for premium-quality review
- Target language(s)
Dubly also supports multi-speaker videos (e.g., interviews, panel discussions).
3. Quality Assurance & Fine-Tuning
- Automatically check outputs
- Optionally enable Dubly’s Native Speaker Control (NSC) for highly sensitive content (reviewed by certified native speakers within 72h).
4. Re-Upload to YouTube
- Upload translated videos via YouTube API
- Update playlists & subtitles
- Localize channel pages (About, playlists, descriptions)
Why Dubly Is the Best Choice for YouTube Channels
Other tools usually only provide basic audio dubbing. Dubly combines enterprise-grade functionality and precision:
- ✅ Full automation via API
- ✅ Lip sync at the highest quality
- ✅ Original voice cloning in all languages
- ✅ Glossaries & custom prompts for brand terminology
- ✅ Bulk translation for entire channels
- ✅ 100% GDPR-compliant (EU servers, ISO 27001 in preparation)
Leading brands such as BMW, BILD, LIDL, Squat University, and Marius Quast already rely on Dubly to make their content available worldwide.

FAQ
Can I automatically translate my entire YouTube channel?
Yes. With the combination of the YouTube API and the Dubly.AI API, all videos can be automatically fetched, translated, and re-uploaded.
Does Dubly support multi-speaker videos from meetings or interviews?
Yes. Dubly detects different speakers and can translate them using separate voice cloning and lip sync.
Is YouTube’s auto-translation (auto dubbing) good enough?
No. YouTube currently only offers limited audio translation without precise lip sync. The quality cannot be compared to specialized tools like Dubly.
Is Dubly GDPR-compliant?
Yes. Dubly processes data exclusively on European servers, is 100% GDPR-compliant, and never uses customer data for model training.
How long does it take to translate an entire channel?
Depending on the number of videos, whole channels with hundreds of videos can be translated within just a few days – including quality assurance.
Conclusion: YouTube Channel Translation in 2025
Yes – you can automatically translate your entire YouTube channel.
With the combination of the YouTube API and the Dubly.AI API, this process is efficient, scalable, and GDPR-compliant.
👉 For technical implementation, request the complete Dubly API documentation directly at hello@dubly.ai.
What is the difference between Dubbing and Lip Sync?
Dubbing refers to the process of translating a video's speech and re-recording it. Lip Sync (Lip Synchronization) is the visual sub-process where mouth movements are adapted to the new audio to make it appear authentic.
Does AI Lip Sync work with multiple speakers?
Yes, advanced platforms like Dubly.AI feature Multi-Speaker Support. The AI automatically detects different voices in the video and applies Lip Sync and Voice Cloning individually to each speaker.
Is AI Lip Sync safe for corporate data?
That depends on the provider. Many tools use uploaded videos to train their AI models. Dubly.AI, however, is a German company and explicitly does not use client data for training public models.
Can I process long videos with AI Lip Sync?
Unlike many web apps that cut off after a few minutes, Dubly.AI is designed for enterprise requirements and processes even long keynotes, webinars, or e-learning courses exceeding 60 minutes in length.
Does AI Lip Sync alter the speaker's face?
With Visual Dubbing, only the mouth area (and parts of the jawline) is subtly adjusted to form the new sounds. The speaker's identity, facial expressions, and eye area remain completely preserved.
Does the Dubly.AI free trial include the Lipsync feature?
Yes. We believe you need to experience the full technology to understand its value. The free trial includes Generative Lipsync and Voice Cloning, not just simple audio translation.
Is there a difference between a standard "Video translater" and Dubly.AI?
Yes. A standard "Video translater" often only translates text or audio. Dubly.AI is a comprehensive AI solution that adapts the visuals (mouth movements) to the audio, creating a seamless experience.
Can I use Dubly.AI for long-form content?
Yes. While many free tools limit you to 60 seconds, Dubly’s engine is built for scale – from TikTok Shorts to hour-long corporate training modules.
Can I use translate video free tools to internationalize my content?
Yes, absolutely. Using free tools is a great starting point to test new markets without a budget. However, keep in mind that methods like subtitles or basic video translator apps usually only transfer information, not emotion. To truly internationalize your brand's personality and retain viewers, you will eventually need lipsync technology to ensure the audience feels connected to you, not just the text.
Does a free ai video translator work for all types of videos?
It works well for content where the speaker is not visible, such as screen recordings or faceless tutorials. However, for any video featuring a person speaking on camera, a standard tool often falls short. Because it lacks lipsync, the visual mismatch distracts the viewer. For content meant to build trust or emotion, you need a solution that adapts both the voice and the visuals.
Is there a free version of Dubly.AI?
You can translate your first video for free so you can validate the quality with your own files. We believe in letting you prove the value first.
Does this work for any language?
Our AI supports over 30 languages, covering the majority of global markets (English, Spanish, German, French, Japanese, Mandarin, etc.). The Lip Sync works universally across these languages.
How accurate is the translation?
AI translation is very good (95%+), but for critical content, context matters. That is why we offer Native Speaker Control (NSC) as an add-on, where humans review the AI's work. This combines the speed of software with the precision of a native speaker.
Can I automate this process?
Yes. For agencies, media houses, or companies with high volume, we offer an API. This allows you to integrate video translation directly into your content management workflow, removing manual upload steps entirely.
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