UnmarkAIunmarkai
AI video translator

AI Video Translator Online

Translate your video with AI dubbing and subtitles. Download the finished video, subtitle files, and voiceover audio.

Choose your languages · check the cost before starting

  • 10 free points on sign-up
  • No credit card required
  • Up to 2 GB per file
  • 69 language options
Preview a translated videoChoose a language to compare the voiceover and subtitles in this product video.
Translated output: English
Translated transcript

with this lightweight vitamin C serum.

Choose your languages · check the cost before startingSee how it works
Video translation

What does an AI video translator do?

An AI video translator turns speech in a video into another language, then generates dubbing and subtitles. UnmarkAI lets you download the translated video and keep the subtitle and audio files for further editing.

Upload a video from your device and choose your target languages. You can add translated captions to the picture, or download the SRT files to use in your player or editing software.

Downloads

Your translated video, subtitles and audio

Use the MP4 to publish a video, the SRT files to add captions, or the MP3 to keep editing the audio.

MP4

Dubbed video

A translated video with the generated target-language voice track.

SRT · Source

Original subtitle file

The detected source transcript with subtitle timing for reference and review.

SRT · Target

Translated subtitle file

Timed subtitles in the selected target language for players and publishing platforms.

MP3

Voiceover audio

The generated target-language speech track as a separate audio file.

How it works

Translate a video online in four steps

Choose the languages and subtitle settings before starting. Listen to the result and check the text before you publish.

  1. 01

    Upload a video

    Choose an MP4, MOV or WebM file up to 2 GB.

  2. 02

    Choose your languages

    Confirm the original language and choose a target language. Add more target languages if needed; the estimate updates with your choices.

  3. 03

    Set subtitles and audio

    Choose whether to show translated captions and preserve background audio. Subtitle cleanup and manual review depend on your plan.

  4. 04

    Check and download

    Listen for names and pronunciation, then download the video, subtitles and audio.

Start video translation
69 target languages69116 source languages · 69 target languages

Choose the languages you need

Use automatic source-language detection or select it yourself. Add target languages for each version you need; some languages also have regional options.

English to Spanish

Create Spanish voiceover, subtitles, and a dubbed video from an English source.

English to Chinese

Translate English videos for Simplified or Traditional Chinese audiences.

Spanish to English

Prepare an English-dubbed MP4 and English SRT from a Spanish source.

Japanese to English

Translate Japanese speech into an English video and supporting subtitle files.

Translation options

Adjust subtitles, sound and review settings

Turn on the options your video needs. The workbench shows which features your plan includes and the estimated point cost.

Translation options

Included with a translation task

  • Translated captionsShow translated subtitles in the video, or keep them as a separate SRT file.
  • Background soundKeep music and ambient sound underneath the new voiceover. Listen to the mix before publishing.
Available on eligible plans

Available on eligible plans

Availability is shown in the workbench before you create the task.

  • Remove old subtitlesClean subtitles embedded in the picture before adding the translation. Check moving or detailed backgrounds afterwards.
  • Review the textPause to correct the transcript and translation before continuing. Manual review is available on eligible plans.
  • Advanced qualityUse the advanced processing and voice options available with your plan.
Direct YouTube URL import is not available. Upload a local file only when you own the video or have permission to translate it.
Use cases

From tutorials to product videos

Different videos need different checks. Start with the details your viewers need to understand.

Creators

YouTube and social video

Upload your original file, translate it, then add the dubbed video or translated SRT to your channel.

Learning

Courses and tutorials

Check technical terms, measurements and step numbers so viewers can follow the instructions.

E-commerce

Product demos and e-commerce videos

Translate product explanations for your store or listing. Check product names, model numbers, sizes and prices against the original; these details need a human check in each language.

Interviews

Interviews and webinars

Check who is speaking, how names are pronounced, and whether the translated lines fit the pauses.

Related tools

More ways to translate your videos

Need English output, voice dubbing, or help with a short drama? Find the details here.

English target

Translate video to English

Create English-dubbed video and downloadable English subtitles from major source languages.

Open English workflowVoice workflow

AI video dubbing

Explore a workflow centered on translated voice delivery and dubbing review.

Explore AI dubbingE-commerce

Product video translation

Check model numbers, product names and specifications in each translated version.

See product video tipsEntertainment

Short drama translation

Prepare episodic vertical drama for a selected target-language audience.

Open drama workflow
Optional visual cleanup

Replace subtitles that are already in the picture

Some subtitles are part of the video image and cannot be switched off. If they overlap the translation, subtitle cleanup can remove them before new captions are added. This option requires an eligible plan.

Old captions remain in the pixelsNew target-language subtitles may overlap text that cannot be switched off in a player.
More room for translated captionsReview the cleaned area carefully before adding or burning in the new subtitles.
Explore subtitle cleanup
The same video frame after hardcoded caption cleanup
Authorized source video with hardcoded captions before optional cleanup
Before publishing

Check the translation before publishing

Listen to the video while reading the subtitles. Pay particular attention to names, numbers and lines spoken over background noise.

  • Names, numbers, and termsCompare people, brands, product names, figures, and specialist vocabulary with the source.
  • Pronunciation and speaker changesListen for proper names and make sure changes between speakers remain understandable.
  • Timing and audio balanceCheck pauses, scene cuts, line endings, and any preserved background sound.
  • Subtitle placementKeep captions clear of faces, important visuals, and platform controls.
Free to try

Start with 10 free points

Create an account without a credit card. The workbench shows the estimated point cost before you start the task.

10

New accounts receive 10 free points. The free plan processes the first 30 seconds; selected options affect the point cost.

View pricing
Frequently asked questions

AI video translation questions

Can I translate a video for free?

New accounts receive 10 free points, with no credit card required. The free plan processes the first 30 seconds of a video. Check the point estimate before starting; extra options can cost more.

What files will I get?

You can download the dubbed MP4, original-language SRT, translated SRT and voiceover MP3. You can also choose to show translated subtitles in the video.

Which formats and file sizes are supported?

Upload an MP4, MOV or WebM video up to 2 GB from your device.

Can I translate the same video into several languages?

Yes. Choose a target language and add more in the workbench. There are 116 source languages and 69 target languages. Each added language increases the estimated point cost.

Can I paste a YouTube link?

Direct YouTube link import is not available. Upload a local copy of a video you own or have permission to translate, then add the result to your channel.

What if the video already has subtitles?

Subtitles embedded in the picture cannot be turned off. Eligible plans offer subtitle cleanup before new captions are added. Check the cleaned area, especially during movement.

Can I correct the words before dubbing?

Eligible plans let you pause for manual review of the transcript and translation before continuing. This is useful for names, product terms and unclear speech.

10 free points on sign-up

Translate your video for a new audience

Upload a video and choose your languages to get started.

No credit card required · MP4, MOV, or WebM · up to 2 GB