How to Translate a Video in 2026: Subtitles, Dubs, Both

How to translate a video comes down to two answers: translated subtitles, or a dub that replaces the voice. You often end up using both. Subtitles take minutes and keep the original performance. A dub takes a little longer and is the only option for viewers who listen and do not read your language. This guide covers which to choose, what YouTube and Instagram now do unasked, and how to dub a video yourself when their tools stop short.

Which should you choose, subtitles or a dub?

Subtitle when the video is watched silently or the speaker's face and voice are the point, and dub when the viewer is listening rather than reading. Where the video plays decides most of it:

Situation	Choose	Why
Feed video on TikTok, Instagram or LinkedIn	Subtitles, then a dub if it performs	Feed video often plays muted; captions carry the first seconds
YouTube video over 2 minutes	Dub, with subtitles as a backup	Long viewing happens with sound; reading for ten minutes is work
Ad with a presenter	Dub in the presenter's own voice	The pitch lives in the delivery, not the words
Interview or testimonial	Subtitles	Replacing a real person's voice changes what the clip proves
Tutorial or explainer	Both	The dub carries the lesson, the captions carry the terms

Whichever you pick, translating the words turns out to be the easy half. Voice, timing and on-screen text take longer and go wrong more often. Most of this page is about those three.

How do you translate a video with subtitles?

To translate a video with subtitles, transcribe the audio, translate the transcript, fix the terms, then burn the result in or attach it as a subtitle file. The second step is the only one a machine does well unattended, and even that gets a read in step three.

1. Transcribe. Get a timed transcript in the original language first. Errors here become errors in every language.
2. Translate. Machine translation of a clean transcript is reliable for everyday speech. Product names, jokes and numbers are where it slips.
3. Check the terms. Read the translated file once with the product glossary open. A brand name turned into a common noun is the usual slip.
4. Attach or burn in. YouTube accepts subtitle files in several languages and lets the viewer pick; LinkedIn takes one caption file. For TikTok and Instagram feed video, burn the captions into the picture so they show on mute.

Keep lines to two rows of about 40 characters, and never put them over a face. The subtitle generator returns a timed file from an upload. SocialFaktory's auto-captions burn them in with safe margins in any aspect ratio. The same clip can go out in 9:16 and 1:1 with the text sitting in the right place in both.

What do YouTube and Instagram translate on their own?

Both platforms now dub some videos automatically, so check what they cover before you spend anything. YouTube dubs long videos into a fixed list of languages with a synthetic voice. Instagram dubs Reels between a growing list of languages and can lip-sync them.

YouTube. Auto dubbing is on by default for eligible channels. The auto-dubbing help page lists the pairs. English dubs into 20 languages, including Spanish, French, German, Hindi, Portuguese, Japanese and Korean. Most other source languages dub into English only. Videos over 120 minutes, with little speech or with copyrighted content may not be dubbed. Dubs cannot be edited and the description carries an "auto-dubbed" label. You can set dubs to publish manually so you hear them first. An experimental lip-sync option exists for select channels.

YouTube's May 15, 2026 explainer puts the total at 27 languages across all directions, eight with expressive speech. It also says more than 6 million viewers watched at least ten minutes of auto-dubbed content every day as of December 2025.

Instagram and Facebook. Meta AI translations for Reels began with English and Spanish in 2025 and added Hindi and Portuguese in October 2025. The creators blog lists those four plus Bengali, Tamil, Telugu, Marathi and Kannada, added in January 2026. The newsroom post has grown since: its July 14, 2026 update adds French, German, Italian, Japanese and Korean on Instagram, and a June 4 update promises Arabic, Indonesian, French, Thai and Vietnamese on Facebook. Lip sync is optional, and you can preview a translation before it is shared.

If your audience speaks English and you want Spanish or Hindi, the platforms may well do it for you. From a French original the picture changes: YouTube gives you English only, and Dutch, Polish or Swedish versions are on you. So is wanting a voice you chose, or a dubbed file you can export and post anywhere. In both cases you dub it yourself.

How do you dub a video into another language?

To dub a video, clone the speaker's voice, translate the script, generate the new track, and re-time it so the sentences land where the original ones did. Skip that last step and viewers notice.

1. Clone the voice, or pick a native one. A cloned voice keeps the presenter recognizable across languages; a native voice sounds local. SocialFaktory dubs into 94 languages with voice cloning from the original track. Native voiceover is offered in 10.
2. Translate for the ear. A German sentence usually takes longer to say than its English original, and most languages run longer than English somewhere. Translate for timing: cut filler, split long sentences.
3. Generate and re-time. Each translated sentence is stretched or compressed to fit the original gap. A cut in the picture still lands on a cut in the sound.
4. Mix. Music and effects stay; only the voice changes. If the source has the voice baked into the music, separate them first.
5. Replace the on-screen text. A dub with English captions baked in is half-translated. Re-export captions in the target language.

Watch the result once at normal speed with the original beside it. Wherever the dub runs behind the picture, the translation needs a shorter sentence, not a faster voice. Automating localization for UGC video ads takes the same steps and applies them to whole ad sets.

What are the rules when you use a cloned voice?

Tell viewers when a voice is synthetic, and only clone voices you have permission to clone. Since August 2, 2026, the EU AI Act's Article 50 requires anyone using AI for professional purposes to disclose generated audio or video that could pass for a real person, including in advertising. A dubbed ad with the founder's cloned voice is exactly that. YouTube and Instagram label their own auto-dubs. Each platform also has its own disclosure toggle for content you upload; how to label AI-generated videos lists the toggles per platform.

In practice, a dub of your own presenter, with their consent and labeled as synthetic audio, is what Article 50 asks of you. The platform and ad rules that applied to the original still apply to the dub. A dub of someone else's video in their cloned voice fails on consent, whatever label it carries, unless they agreed to the adaptation and the clone. YouTube's likeness detection, expanded to voice at Made on YouTube on September 23, 2026, gives creators a way to find it.

Which language should you translate into first?

Translate first into the language where your analytics already show viewers you are not speaking to. Open the audience tab on YouTube or TikTok, read the top countries, and check which language the comments from there arrive in. Dub into the first one that is not your own. Give it one video and two weeks, then compare watch time against the original.

Once a language earns its place, make it a lane rather than a one-off. Every new video goes out in both languages on the same day, from the same calendar we used for our seven-platform cross-posting test. Want to hear your own video in a second language? Sign in, upload it, and the dub is back in a few minutes.

In one sentence: To translate a video, subtitle it when it plays on mute and dub it when it plays with sound, let YouTube and Instagram handle the languages they cover, and dub the rest yourself in a cloned or native voice, re-timed to the picture and labeled as synthetic where the law or the platform asks.