Free tool
Korean subtitle generator
This Korean subtitle generator writes Hangul subtitles for a video spoken in Korean: the language is set to Korean, every line is kept short for quick reading, and the subtitles download as SRT or VTT, timed to the speech.
- Free
- Set to Korean
- Nothing is stored
Drop your Korean video here, or Choose your Korean video
MP4, MOV, MKV or WebM video, or MP3, M4A or WAV audio. Up to 30 minutes of each file, 3 free files a day. Spoken language: Korean.
Subtitling Korean videos every week? NoteOwl transcribes Korean recordings on your Mac with unlimited transcription and saves SRT subtitles that name each speaker.
How it works
How do you make Korean subtitles for a video?
Drop the video here. Its sound is transcribed as Korean in short pieces, then set out as subtitles of one or two short Hangul lines that follow the speaker. Read them in the preview, then download SRT or VTT.
- 1
Add the video
A vlog, a lecture, a drama clip or an interview: MP4, MOV, MKV or WebM, or just its audio.
- 2
Hangul, line by line
Every piece of speech is written in Korean. The first 30 minutes of each video get subtitles.
- 3
Save the file
SRT for YouTube and editing apps, VTT for a web player, or plain text.
Why are Korean subtitle lines so short?
Because each Hangul character is a whole syllable. A line holds at most 16 characters, spaces included, where alphabetic languages get 42, and each subtitle stays up long enough to read about 12 characters a second.
In our Korean test, 40 read-aloud sentences became 103 subtitles. A typical line held about a dozen characters, and a long sentence ran across several subtitles rather than squeezing into one.
- A year and a month
- Its two lines통행금지는 2017년 / 3월까지이다.
- Latin letters inside
- Its two lines연예뉴스 웹사이트인 TMZ는 / 사진사가 세풀베다대로 맞은편에
- Two short lines
- Its two lines호주의 미첼 / 골리는 남자 스탠딩
| Subtitle | Its two lines |
|---|---|
| A year and a month | 통행금지는 2017년 / 3월까지이다. |
| Latin letters inside | 연예뉴스 웹사이트인 TMZ는 / 사진사가 세풀베다대로 맞은편에 |
| Two short lines | 호주의 미첼 / 골리는 남자 스탠딩 |
Where do Korean subtitle lines break?
At the spaces between words. Korean writes each particle joined to its word, so a break never cuts 는, 를 or 에서 away from the noun before it, and a number keeps its counter, as in 2011년 or 16위로.
Commas are rare in the subtitles, so a spoken list can run on without them: three languages named in a row came back as “스페인어 영어 프랑스어”. Add the commas in the SRT if your style uses them.
Why set the subtitle language to Korean?
So that every subtitle comes out in Hangul. When the language is guessed, a short or quiet Korean phrase can be taken for another language, and that stretch of subtitles is written wrongly. Set to Korean, nothing is left to a guess.
For a video that moves between Korean and English, use the main subtitle generator instead: it works out the language of each short stretch by itself.
What should you check in Korean subtitles before publishing?
Names, figures and anything read out letter by letter. Names are written in Hangul by their sound, so compare them with the video. Most numbers come back as digits, but codes and full dates can come back spelled out.
Read-out codes
A Wi-Fi standard, 802.11, came back as 팔공 이 점 일 일 and filled most of three subtitles. Type the digits back in.
Full dates
A date said in full came back in Korean number words instead of 1940년 8월 15일. Years and months alone came back as digits.
Loanwords
Borrowed words can be spelled another way: 어드밴티지 came back as 어드벤티즈. Fix them before you upload.
Can a Mac add speaker names to Korean subtitles?
Yes, with NoteOwl, which understands Korean on your Mac. It transcribes Korean recordings there with unlimited transcription, tells the speakers apart and saves SRT subtitles with each name in place. For a Korean transcript rather than subtitles, use Korean audio to text.
FAQ
Questions about Korean subtitles
Is the Korean subtitle generator free?
Yes. Subtitle 3 Korean videos a day, the first 30 minutes of each, without an account or a watermark. SRT, VTT and text are all included.
Can it put English subtitles on a Korean video?
No. It writes down the Korean that is spoken and doesn’t translate. If you need English, translate the text of the finished SRT and leave every subtitle’s number and times unchanged.
Will the Hangul display correctly in other apps?
The SRT and VTT files are saved as UTF-8 text, so the Hangul survives being opened, edited and uploaded. When you edit a file in a text editor, save it as UTF-8 again.
Does my video leave my device?
The video itself doesn’t. Your browser opens it and takes out the sound; short pieces of that sound travel over a secure connection to a cloud AI transcription service, which transcribes and discards each one. NoteOwl keeps no copy of the video or the subtitles.
Can it burn the Korean subtitles into the picture?
No, it makes a subtitle file. Upload the file alongside the video, or import it into a video editor that burns subtitles in when it exports.
Do the subtitles say who is speaking?
No, the web generator writes only the words. NoteOwl on a Mac adds each speaker’s name to the subtitles it saves.
Keep exploring
More subtitle generator tools
- Subtitle generatorA free AI subtitle generator: drop in a video or recording and download SRT or VTT subtitles timed to the speech, two short lines per cue; only the sound is sent, nothing is stored
- Romanian subtitle generatorMake Romanian subtitles from a video or recording free in your browser, with the language set to Romanian; SRT, VTT or text; nothing is stored
- Bulgarian subtitle generatorMake Bulgarian subtitles from a video or recording free in your browser, with the language set to Bulgarian; SRT, VTT or text; nothing is stored
- Chinese subtitle generatorMake Chinese subtitles from a video or recording free in your browser, with the language set to Chinese; SRT, VTT or text; nothing is stored
- Hungarian subtitle generatorMake Hungarian subtitles from a video or recording free in your browser, with the language set to Hungarian; SRT, VTT or text; nothing is stored
The same in other tools
Korean recordings, subtitled and searchable on your Mac
Free to download. Runs entirely on your Mac.
macOS 26 or later · Apple Silicon (M1 or newer) · 16 GB memory minimum, 24 GB recommended
About NoteOwl
NoteOwl is private AI meeting notes and memory for the Mac. It captures meetings without a bot joining the call, labels every speaker, writes summaries and action items, and builds a memory of every conversation that you can chat with — fully offline, because the speech recognition and the AI run on the Mac itself. Dictation into any app is free; Pro is a one-time purchase.
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