Free Tool

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.

Use cases

Built for every team

Each clip carries its own language switch. Same performance, every market.

Company announcements
Reach every office with the same message on the same day, in its own language.
Podcasts
One long-form conversation, an episode every market can actually follow.
Healthcare
Roll out the same compliant protocol to every site, in each team's own language.
Product walkthroughs
Ship product knowledge to every market on launch day, not weeks later.
Manufacturing
Standardize safety and machine training across plants without flying in trainers.
Webinars
Turn one live session into on-demand training for every region, no re-recording.
Conferences
Give a flagship talk a second life in every language, with all its original energy.
Company announcements
Reach every office with the same message on the same day, in its own language.
Podcasts
One long-form conversation, an episode every market can actually follow.
Healthcare
Roll out the same compliant protocol to every site, in each team's own language.
Product walkthroughs
Ship product knowledge to every market on launch day, not weeks later.
Manufacturing
Standardize safety and machine training across plants without flying in trainers.
Webinars
Turn one live session into on-demand training for every region, no re-recording.
Conferences
Give a flagship talk a second life in every language, with all its original energy.
Company announcements
Reach every office with the same message on the same day, in its own language.
Podcasts
One long-form conversation, an episode every market can actually follow.
Healthcare
Roll out the same compliant protocol to every site, in each team's own language.
Product walkthroughs
Ship product knowledge to every market on launch day, not weeks later.
Manufacturing
Standardize safety and machine training across plants without flying in trainers.
Webinars
Turn one live session into on-demand training for every region, no re-recording.
Conferences
Give a flagship talk a second life in every language, with all its original energy.
From one clip to your whole library

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
A training video playing on a desktop screen with a language menu open on English, Spanish, French, Hindi, and Chinese
Languages 100+

Languages and accents you can dub into

Sonesta Hotels 80%

Reduction in video production costs

State of New Mexico 70%

Cost reduction on localized training content

Reference

AI Dubbing vs Subtitling vs Traditional Dubbing

How AI video dubbing compares to the other ways to localize spoken video.

ApproachHow it worksSpeedCostLip-syncBest for
AI video dubbing AI replaces the spoken audio in a new language and re-renders the lips to matchMinutesLowYes Scaling video to many languages
Subtitling Translated text captions run over the original audioFastLowNot applicable Keeping the original voice
Traditional dubbing Human voice actors re-record the audio in a studioWeeksHighApproximate Film and premium TV
Voiceover A translated voice plays over the lowered original audioFastLow to mediumNo News and interviews
How It Works

Dub a Video in 3 Steps

The dubbing tool with a training video dropped in and Spanish picked as the target language
Customer Stories

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

Magesh Sarma
Magesh Sarma Chief Information Officer

“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

Carmine Valente
Carmine Valente VP of Information Security, Paramount

“Colossyan’s technology and its translation capabilities have revolutionized our training processes, especially in a multi-lingual environment like ours.” Read Sonesta case study

Kristin Broadhead
Kristin Broadhead Director of Learning & Development
Enterprise Ready

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.

SOC2 Type II certifiedGDPR compliantSAML SSO

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.

FAQ

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.

Ready to Localize

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.