AI video dubbing. You direct the final cut.
Dub your videos into dozens of languages, with regional voices and subtitles. Fine-tune each line’s wording, voice and timing, hear your edits for free, and publish a version you’re proud to share.
80 languages, with regional variants listed separately. Available regional voices are shown in the studio.
What it is
does4dub is a web app that dubs narrated video. You upload a video you own or have the rights to, choose supported source and target languages, and 4dub transcribes the speech, translates it, and speaks the translation in a synthetic voice timed to each line. You review and edit the lines, then download the dubbed video with subtitles.
Google sign-in is optional and is used only to create your 4dub account and sign you in. 4dub receives your name, email address and profile picture, and nothing else: it never reads your Gmail, Drive, YouTube or other Google data, and Google user data is never sold, used for ads or used to train AI models.
4dub works on speech and subtitles only. It does not generate or alter images, faces or bodies, offers no lip sync, face swaps or voice cloning, and uses no Google service for any of this. Sexual or intimate content, including non-consensual intimate imagery, real or AI-generated, is prohibited, and accounts that upload it are closed.
Read the privacy policy and the terms of use for the details.
How it works
Upload your video, choose a target language, and get a dub with subtitles.
Upload your video, select its spoken language and choose a target language or region. See the exact price before you start.
Get a translated voice-over timed to your speakers, plus subtitles in both languages. Your original video stays intact.
Adjust the wording, voice or timing on the timeline. Preview each edit free, then re-render for $0.60 a minute and download the finished video.
Make a phrase sound more natural. Give a speaker a different voice. Leave a little more room for a sentence. Every line is yours to edit, preview and refine on the timeline.
Keep the original words beside the translation.
Edit the translation to fit your audience.
Review the speaker and timing on the timeline.
Preview your edit before applying the render.
Select a translated line and ask for “shorter” or “more conversational.” AI suggests a rewrite and marks the changes. Accept it or keep your current translation.
Play any edited line in its new voice right in the editor. Previews are free; credit is spent only when you re-render.
Each speaker gets their own lane and their own voice. Override a single line when one sentence needs a different read.
Drag a line’s edges to move or stretch it. The fit meter tells you when a translation is too long for the time it has.
Every render is a numbered version. Read two side by side with the changed words marked, and restore an earlier take in one click.
The dubbed mp4 and subtitles in both languages, for every version you keep, plus your original upload.
Made for narrated video
Keep the visuals you worked on. Add a translated voice-over that follows each speaker’s timing, with subtitles your viewers can follow. For courses, walkthroughs, talks and narrated stories.
Reach students in more languages without re-recording a single lesson.
Ship the same walkthrough to audiences around the world.
Narration, interviews and webinars with up to several speakers, each with their own voice.
Pricing
Buy credit when you need it and spend it per run. The exact price is shown before every run, and failed runs are refunded.
Questions
Choose from dozens of languages, including English, Spanish, Portuguese, French, German, Chinese, Japanese, Korean, Hindi and Arabic. The studio lists the supported source languages and the target languages with available voices. Some languages are available as targets only; regional variants are listed separately.
No. 4dub makes a voice-over dub, not lip sync: the picture is untouched, and a new voice speaks the translation over it, timed line by line. That suits courses, screencasts, product demos and narrated video best.
$0.60 per minute of video, however many lines you changed. The editor shows the number of changed lines and the exact price before you confirm, and previewing a line while you edit costs nothing.
You are not charged. Credit is held when a run starts and returned in full if it fails, and your last good version stays playable and downloadable.
By the whole video’s length, rounded up to the next tenth of a minute. A 4:33 video is billed as 4.6 minutes: $13.80 to dub and $2.76 per re-render.
Your uploads, dubs and subtitles are private to your account. There are no public links: playback and downloads use short-lived links issued only to you, and deleting a project deletes its media. The privacy policy lists who processes it on our behalf.
Start with $12.60 of free credit, no card needed.Three minutes of dubbing and two re-renders.
