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Browser extensions can't run on phones. On iPhone, iPad and Android, dual subtitles on YouTube work in the free Linglass app.
You want to hear Korean and read the same Korean at the same time. It sounds like the most basic request a learner could make, and it is surprisingly hard to satisfy: open a K-drama almost anywhere outside Korea and the subtitle menu offers English, Spanish, Indonesian, Arabic — everything except the language the actors are speaking.
The usual answers are to download a raw episode and hunt for a matching subtitle file, or to sign up for a Korean streaming service you cannot pay for. There are shorter routes, and one of them is probably in a subscription you already have.
Get a Korean line and your own language together — free →
Why this is hard at all
Almost every subtitle track attached to a K-drama abroad is a translation. It exists because an international distributor bought the show for viewers who do not understand Korean, and that is the only audience it was paid for.
A Korean track is a different product with a different reason to exist. It is made for Korean viewers who are deaf or hard of hearing, or for the domestic release. Whether you can see it depends on one question: did whoever licensed the show to your country also license that track?
So it is not a matter of which drama you pick. It is a matter of which platform, and for some platforms, which region.
Netflix: the best legal source
If you want one place to start, start here.
Netflix's own Korean productions almost always carry a Korean subtitle track, and many of the Korean dramas it licenses do too. The menu names it in your interface language, so look for Korean — sometimes listed as Korean [CC]. The CC version is written for deaf and hard-of-hearing viewers, so it also describes sounds in brackets — [웃음], [문 닫히는 소리] — and names off-screen speakers. Either way it is real Korean text, not translation.
What varies is the region. The same title can list Korean in one country and not in another, because tracks are licensed per territory. Before you commit to a sixteen-episode series, open the title, go to Audio & Subtitles, and look for Korean in the subtitle column.
The Netflix track that exists but will not show up
Netflix lists a title's tracks in the menu but does not load a track's text until you select that language once. Until then, any tool reading the page from outside sees a Korean track that exists and is empty, and reports it as missing.
This is the most common reason people are told "this show has no Korean subtitles" when it does. The fix takes ten seconds, once per title:
- Start the episode.
- Open Audio & Subtitles in Netflix's own player.
- Pick Korean (or Korean [CC]) and let it play for a second.
- Switch back to whatever you were using.
Linglass recognises this case and tells you to do exactly that, instead of saying the track does not exist.
YouTube: the widest free source
Korean broadcasters put a great deal of their catalogue on YouTube legally: drama channels upload clips, highlights and sometimes full episodes of older series, and web-drama studios publish entire short series there for free. Add variety shows, interviews and vlogs, and it is the largest pool of Korean video you can watch without a subscription.
Three things to know about the subtitles there:
- Korean auto-captions exist on most speech. YouTube generates Korean captions automatically; open CC or Settings → Subtitles and look for Korean (auto-generated). They arrive as a run-on stream with awkward breaks, which Linglass re-cuts into readable lines.
- Variety-show captions are part of the picture. The big coloured text in Korean variety shows is burned into the video. It is decoration and commentary, not a transcript, and no tool can read it.
- Some videos have no captions at all — older uploads, small channels, music-heavy clips. Here a Korean line can be produced from the audio itself: a transcription of what is actually said, as text you can click. The details are in our guide to videos with no captions.
Viki: great for watching, unreliable for Korean text
Viki has one of the deepest K-drama catalogues anywhere and a subtitle model unlike any other platform: its subtitles are written by volunteers, translating out of the spoken language for people who do not speak it. On a Korean drama, the Korean track is the one nobody had a reason to write.
It does happen — some titles carry one — but treat it as a lucky find, not the norm. Check each title's subtitle list before starting a series. How Viki's tracks work, including how to read their completion before you commit, is in our Viki guide.
Korean and regional services
TVING, Wavve and Coupang Play are where Koreans themselves watch, with the deepest catalogues of all. Outside Korea they are mostly out of reach: they are licensed for viewers in Korea and sign-up typically expects a Korean phone number or payment method. If you live in Korea, they are worth exploring; if you do not, plan around them.
Kocowa (the Americas) and Viu (parts of Asia and the Middle East) carry many K-dramas with subtitles in local languages. They are built for watching in your own language, so check the menu before expecting Korean. Linglass does not run on any of these services, and we would rather say so than pretend a list of sites is a list of solutions.
What the file-hunting answer actually costs
The classic route still works: a raw episode, a Korean subtitle file from a fan archive, a desktop player. But it comes with a bill:
- The timing rarely matches. A file cut for a broadcast version drifts against a streaming version with different ad breaks or a different opening.
- You end up in a grey zone. Raw episodes come from the same sites as everything else that gets taken down, along with their pop-ups.
- It is a setup per episode. Forty minutes of preparation for a sixty-minute episode is why almost nobody is still doing it a month later.
Getting a Korean line and your own language on screen together
A Korean track is half the job. A line of Hangul you cannot read fast enough is still a wall, and switching it off to check the meaning breaks the scene.
That is what Linglass does on Netflix, YouTube and Viki:
- Korean on top, your language underneath, kept in sync cue by cue. The how-to is in K-dramas with Korean and English subtitles at the same time.
- Click any word for its meaning in context and its pronunciation, without pausing for a dictionary.
- Romanization over the line when you want it, and off when you no longer need it.
- A Korean line from the audio on YouTube when a video has no captions.
- Saving that survives the episode. One click keeps the word with its sentence, and it comes back on a spaced-repetition schedule. Saving is unlimited on the free plan.
The line we refuse to fake
When a title has no track in the language you are learning, a tool can make one by machine-translating a track it does have. We do that for your own language — but never for the language being spoken. On a K-drama, that means we will not manufacture a Korean line out of the English subtitles.
It would look perfect: fluent, correctly timed Korean under Korean speech, saying something slightly different from what the actor just said. You would have no way to tell, and you would learn the wrong words with the confidence of having heard them. So a Korean line from us is always either a real track or a transcription of the actual audio — and where neither exists, we say so instead of guessing.
Honest limits
- A desktop browser is required for Netflix and Viki. Chrome, Edge, Brave, Opera or Yandex Browser. On a phone, the app covers YouTube only — see dual subtitles on a phone or tablet.
- Burned-in text cannot be read by any tool. Variety-show captions are part of the picture.
- AI subtitles have a length limit on the free plan. Premium has none. Episode-length videos are the normal case either way.
- A transcription is not a script. It is usually close, and it is still a machine listening to the audio.
- Some Netflix tracks are images, not text. Netflix draws them; no tool can read them, ours included.
- TVING, Wavve, Coupang Play, Kocowa and Viu are not supported.
Frequently asked questions
Where can I watch K-dramas with Korean subtitles?
Netflix first: its own Korean productions almost always carry a Korean subtitle track, sometimes labelled Korean [CC], and many licensed dramas do too, depending on your region. YouTube is second, with official broadcaster and web-drama channels and Korean auto-captions on most speech. Viki has a huge catalogue, but its subtitles are volunteer translations, so a Korean track there is the exception.
Why does Netflix say there are no Korean subtitles when there are?
Netflix does not load a subtitle track's text until you select that language once in its own player, so tools reading the page see an empty track and call it missing. Pick Korean in Audio & Subtitles, let it play for a second, and switch back.
What is the difference between Korean and Korean [CC] on Netflix?
Both are Korean text. The CC version is written for deaf and hard-of-hearing viewers, so it also describes sounds in brackets and names off-screen speakers. For learning, either works; the plain version is easier to read quickly.
Does Viki have Korean subtitles on Korean dramas?
Rarely. Viki's subtitles are written by volunteers translating out of the spoken language, so on a Korean drama the Korean track is the one nobody needed to write. Some titles have one; check each title's subtitle list before you start a series.
What if a K-drama clip on YouTube has no Korean captions?
First check the CC menu for Korean auto-captions, which YouTube generates for most speech. If there are none, a Korean line can be transcribed from the video's own audio. Linglass does that in the player, so the line is clickable like any other subtitle.
Can I see Korean and English subtitles at the same time?
Not in Netflix's or Viki's own players, which show one track at a time. With a browser extension like Linglass you get the Korean line on top and your own language underneath, in sync, on Netflix, YouTube and Viki — free.
Quick recap
- Most K-drama subtitles abroad are translations; a Korean text track depends on the platform and the region, not the drama.
- Netflix first: its Korean productions almost always carry a Korean track, sometimes as Korean [CC]. If a tool says the track is missing, select Korean once in Netflix's own menu.
- YouTube has the widest free catalogue and Korean auto-captions on most speech; variety-show captions are burned in; where there is no track, the audio can become one.
- Viki is great to watch and unreliable for Korean text.
- TVING, Wavve and Coupang Play are the deepest catalogues and mostly out of reach outside Korea.
- A Korean line worth learning from is a real track or a transcription of the audio — never a translation of the English one.
A Korean line you can click, in sync with your own language
Linglass turns real Korean subtitle tracks on Netflix, YouTube and Viki into clickable words with meaning, pronunciation and romanization, and transcribes a Korean line from the audio when a YouTube video has none. Free.
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