AI Video Dubbing
Dub any video into 100+ languages with lip-synced, natural-sounding voices. Upload a clip, pick a language, and your dubbed video comes back ready to share. Free to use.





Built for every team
Each clip carries its own language switch. Same performance, every market.
Dub a clip here. Localize everything in Colossyan.
This tool dubs a single video. Inside Colossyan, you can dub, translate, and localize your entire training library, then keep every language in sync when the source changes.
- • Dub and translate videos and full courses into 100+ languages
- • Match voices, subtitles, and on-screen text in one workflow
- • Update the source once and refresh every language, without re-recording
Languages and accents you can dub into
Reduction in video production costs
Cost reduction on localized training content
For anything you want to create.
A few of the different ways teams are already using it. Stories, testimonials, documentaries, and everything in between.
AI Dubbing vs Subtitling vs Traditional Dubbing
How AI video dubbing compares to the other ways to localize spoken video.
| Approach | How it works | Speed | Cost | Lip-sync | Best for |
|---|---|---|---|---|---|
| AI video dubbing | AI replaces the spoken audio in a new language and re-renders the lips to match | Minutes | Low | Yes | Scaling video to many languages |
| Subtitling | Translated text captions run over the original audio | Fast | Low | Not applicable | Keeping the original voice |
| Traditional dubbing | Human voice actors re-record the audio in a studio | Weeks | High | Approximate | Film and premium TV |
| Voiceover | A translated voice plays over the lowered original audio | Fast | Low to medium | No | News and interviews |
Dub a Video in 3 Steps
Why Teams Choose Colossyan
“The biggest benefit of Colossyan is being able to have training material that never goes obsolete.” Read AmeriSave Mortgage case study
“We’ve been able to replace an average of 10 hours of walkthrough meetings every month by generating a Colossyan video.” Read Paramount Pictures case study
“Colossyan’s technology and its translation capabilities have revolutionized our training processes, especially in a multi-lingual environment like ours.” Read Sonesta case study
Security that doesn't slow teams down
Creating and scaling knowledge experiences should not trigger months of security reviews, extra vendors, or blocked rollouts. Colossyan is designed to meet enterprise standards without adding friction to how teams work.
Security built into the platform
SOC2 Type II, GDPR and SAML SSO are part of the core product, not enterprise add-ons or custom work.
AI you can explain internally
Clear AI boundaries, transparent data handling, and responsible usage by design. Easy to review. Easy to approve.
Fewer tools means fewer risks
One platform for video, interactivity, localization, and management. Fewer vendors, fewer security gaps.
Ready when legal gets involved
MSAs, DPAs, and security questionnaires handled upfront so projects move forward instead of stalling.
Video Dubbing FAQ
AI video dubbing replaces the spoken audio in a video with a new voice in another language, then matches the speaker's lip movements to the new speech. The result is a video that looks and sounds like it was filmed in the target language, without voice actors or a studio re-recording.
Yes. You can dub a video with Colossyan for free. Upload a clip, pick a language, and get a dubbed, lip-synced result back. To dub your full library and keep every language in sync as your content changes, sign up for a Colossyan plan.
Yes. Colossyan dubbing re-renders the mouth to match the new language, so the lips move in sync with the dubbed audio. It reads the full frame rather than a cropped mouth, which keeps the sync intact on head turns, side angles, and partly covered faces. See the research and side-by-side samples.
Dubbing replaces the spoken audio with a new voice in another language and syncs the lips, so viewers hear the content in their language. Subtitling keeps the original audio and adds translated text captions. Dubbing suits training and marketing video, while subtitles suit content where the original voice matters. Colossyan does both.
Colossyan dubs video into 100+ languages and accents, including regional variants. In the free tool you can dub a single clip into any one of them, and inside Colossyan the same coverage extends to full courses. You choose the target language on upload, then get a lip-synced result back.
You can dub most talking-head video, including webcam recordings, conference talks, interviews, product demos, and training clips. Colossyan handles real-world footage with difficult lighting, motion, and partly covered faces, not just clean studio shots. Upload the file and choose a target language to start.
AI video dubbing works in three steps. The tool detects and transcribes the speech, translates it into the target language, and generates a matching voice. It then re-renders the speaker's mouth so the lips sync to the new audio, and returns a dubbed video ready to share.
Yes. Inside Colossyan you can dub and translate full courses into 100+ languages, keep voices and subtitles aligned, and refresh every language when the source changes, without re-recording. The free tool above handles one clip at a time, while Colossyan localizes your whole library in a single project.
Dub Your Whole Video Library With Colossyan
Dub a clip above, then localize every video and course into 100+ languages inside Colossyan, and keep each language in sync when your content changes.