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AI video translation into Korean

Korean video translator

Upload a video in any of the other 21 languages. Sonilo translates it into Korean, 한국어, and voices every line again for viewers in South Korea. You can proofread the script before anything renders.

You pick the languages after signing up. Nothing is charged until you start the translation.

Same scene, dubbed by Sonilo. Tap a language to hear it.

24 languagesThe speaker’s own voiceOriginal music and sound effects keptLip sync, on or offProofread before it rendersBring your own .srt or .vtt

Who watches in Korean

Korean is spoken by around eighty million people, in South Korea, in North Korea and in large communities in China, the United States and Japan. South Korea is one of the most connected countries in the world, with very fast internet, near universal smartphone use and an audience that watches video all day.

Korean viewers are discerning. They have a world famous entertainment industry of their own, and content from abroad has to feel natural to compete with it. A video in fluent Korean reaches shoppers, gamers, students and businesses who rarely engage with English video for long.

What Sonilo does in Korean

Korean

Korean is selected when you start from this page. Add any other language in the same job; each is priced on its own.

Lip sync, on or off

On, the speakers' mouths are rendered again to match the Korean lines. Off, your picture stays exactly as it was and only the voice changes.

Proofread the Korean script

Read the transcript beside its Korean translation, line by line, and correct it before anything is voiced. Or upload your own Korean .srt or .vtt and the dub says exactly those lines.

Korean subtitles in the picture

When the dub comes back with its Korean script, style the subtitles and export a copy with them burned in, set in Noto Sans KR unless you pick another font.

Getting Korean right

What to check while you proofread a video going into Korean.

Pick the right speech level

Korean grammar changes with politeness. Most brand videos, tutorials and presenters use the polite haeyo style; formal announcements and corporate content often use the more formal hamnida style; casual speech is reserved for close friends. Decide the level that fits your speaker and keep it consistent through the whole script.

Watch the length of each line

Korean sentences put the verb at the end and often need more syllables than English. A packed English line can come back sounding rushed. While you proofread, simplify the densest lines and drop pronouns that Korean would naturally leave out.

Names and loanwords in Hangul

Foreign names and brands are written in Hangul, and many companies already have an agreed Korean spelling. Check each name in the script, and keep the English loanwords Koreans actually use in tech, beauty and gaming instead of formal alternatives.

Natural beats literal

Korean audiences notice translations that follow English word order. Read the script aloud once; if a line sounds like a textbook, rephrase it the way a Korean presenter would say it. A short, natural line always beats a long, faithful one.

Who translates video into Korean

Beauty, fashion and consumer brands

Korean shoppers compare products closely and watch reviews and demos before buying. Translate the product video, keep the brand and product names exactly as they appear in Korea, and download the Korean cut for each store.

Games and esports

Korea has one of the most devoted gaming audiences in the world. Trailers, patch notes and developer videos in Korean reach players directly, and one upload can also give you Japanese and Chinese.

Software and business content

Korean companies expect demos and webinars in Korean, in a formal register. Translate the English versions and check every product term while you proofread.

Creators and educators

Channels about travel, food, language learning or technology can reach Korean viewers with their existing videos. Lip sync keeps the presenter natural on screen.

You read the script before it is voiced.

Four steps from the video you already have to the same video in Korean.

  1. 01

    Upload your video

    An .mp4, .mov or .m4v up to 5 minutes and 400 MB. Sonilo detects the language that is spoken, so there is nothing to set. Add an .srt or .vtt per language if you already have the lines.

  2. 02

    Pick Korean

    Choose Korean, add more languages if you like, and decide whether lip sync renders the mouths again to match.

  3. 03

    Proofread the Korean script

    Switch on proofreading to read the transcript and the Korean translation line by line, and fix names, product terms and jokes before anything is voiced.

  4. 04

    Watch, then download

    Play every language in the browser. Download the translated videos and their subtitles on any paid plan.

Made for the video you already cut.

The soundtrack stays

Sonilo keeps the original background music and sound effects and replaces only the speech, with lip sync on or off.

The speaker’s own voice

Sonilo keeps the speaker’s own voice in the new language, so the translated speech sounds like the person in your video, not a stock voice. There is no voice to record or set up.

Lip sync, when you want it

On: mouths are re-rendered to match the new language. Off: your original picture stays untouched and only the voice is replaced.

You approve the words

The translation is a script you can read and correct first. A product name, a joke, a line of dialogue: fix it before it is spoken.

Your subtitles, spoken

Upload an .srt or .vtt for a language and the dub says exactly those lines, instead of a machine translation of them.

Music for the new cut

Sonilo also adds music to video. If a translated version needs its own soundtrack, add music to it in the same account.

Translate into Korean from any language.

Sonilo detects the language spoken in your video, so any of these 21 works as the source. Each pair has its own page.

Other languages Sonilo dubs into

Browse every language pair, or go back to the video translator.

Priced by the second, per language.

One language costs 50 credits per second of video, and two languages cost twice that. Every clip is billed at least 750 credits per language.

What a clip costs, one language

What a clip costs, one language
ClipCredits
15 seconds750
30 seconds1,500
60 seconds3,000

What each plan includes, per month

What each plan includes, per month
PlanTranslationMonthly
Pro800 s per language$14.99
Premium2,000 s per language$29.99

Downloading translated videos and subtitles is included with every paid plan. See all plans.

Before you upload

What people ask before they translate their first video.

Will the Korean be formal or casual?

That depends on the translated script, which you can read and change before anything is voiced. Choose the speech level that fits your speaker, haeyo for most content, and make every line agree.

Can I keep English words in the Korean version?

Yes. While you proofread, keep the English terms your Korean viewers actually use. They are spoken by the Korean voice, so listen to them once in the result.

Can I translate a Korean video into English?

Yes. Upload the video spoken in Korean and pick English, or any other language Sonilo dubs. The spoken language is detected for you.

Can I translate into Korean, Japanese and Chinese at once?

Yes. Pick all three in one job and get a version in each from a single upload. Each language is priced on its own.

Can I put Korean subtitles on the video?

Yes, when the dub comes back with its Korean script: proofread it first, or upload your own .srt or .vtt. On a computer you can then style the subtitles and export a copy of the video with them burned in, set in Noto Sans KR unless you pick another font.

Which languages can I translate into Korean from?

Any of the other 21 languages Sonilo works with. You do not pick the source: Sonilo detects the language spoken in your video when it transcribes it, then translates that transcript into Korean.

Which languages can I translate into?

English, German, Spanish (Latin America), Spanish, Hindi, Indonesian, Arabic, French, Chinese (Mandarin), Japanese, Portuguese (Brazil), Portuguese, Vietnamese, Korean, Italian, Russian, Tamil, Turkish, Kannada, Thai, Gujarati, Malayalam, Punjabi (India), Sindhi (India). Pick any number in one job.

How long can my video be?

Up to 5 minutes and 400 MB, as .mp4, .mov or .m4v. For something longer, split it and translate the parts.

Can I edit the translation?

Yes. You read and correct the translated script before the video is rendered, so names and phrasing come out the way you want.

What does lip sync change?

With lip sync on, the speakers' mouths are rendered again to match the new language. With it off, your picture is left exactly as it was and only the voice changes, so mouths still move to the original language.

Does Sonilo keep the background music and sound effects?

Yes. Sonilo keeps your video's original background music and sound effects and replaces only the speech, so the translated version plays over the same soundtrack, with lip sync on or off.

Does Sonilo clone the speaker's voice?

Yes. Sonilo keeps the speaker's own voice in the new language: the translated speech sounds like the person in your video, not a stock voice, and when several people speak, each keeps their own. There is no voice to record or set up first.

I already have subtitles. Can I use them?

Yes. Upload an .srt or .vtt for a language and the dub says exactly those lines.

How does Sonilo compare with HeyGen, ElevenLabs and Rask?

Sonilo suits short creator clips that also need music or sound effects: 24 languages, videos up to 5 minutes, lip sync on Pro and Premium, plus one free trial on Free and Creator. HeyGen lists more languages, and ElevenLabs Dubbing is the cheapest way in. We make Sonilo, and our comparison of eight AI video translators, limits included, is at https://sonilo.com/compare/best-ai-video-translators.

Can I translate a video for free?

The free plan comes with 2,000 credits every two weeks, which covers about 40 seconds of video in one language. You can watch the result in the browser. Downloading it takes any paid plan.

Your next audience speaks Korean.