WatchTranslate
YouTube · tested 2026-11-09

YouTube auto-translate has no English option. What now?

The video most likely has no caption track yet, and YouTube's Auto-translate can only translate captions that exist. Add WatchTranslate and click WT on the player: it translates the captions if there are any, and listens to the audio if there are none.

Add to Chrome (free)
Watch on your phone

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20 minutes free · no card needed · Chrome / Edge on a computer, the app on a phone
A Spanish TEDx talk on YouTube with English subtitles on top and the Spanish original below
Real screenshot: a Spanish TEDx talk on YouTube, with English appearing as it plays and the Spanish line below.
How it works

Three steps to English subtitles on YouTube

WatchTranslate
Chrome Web Store · Free
Add to Chrome
Step 1

Add the extension or app

On a computer, add the extension to Chrome or Edge in half a minute. On a phone, install the WatchTranslate app.

Step 2

Open the video on YouTube

Play the foreign-language video as usual. No YouTube sign-in needed.

WTA parallel digital world
Step 3

Click WT and start

Click WT on the player, then Start translating. English appears on top and the original line below.

What you get

What foreign-language YouTube looks like with it

Videos with no captions make sense too

No English in Auto-translate usually means the video has no caption track at all. Click WT and it listens to the audio; English follows in a few seconds.

Messy auto-captions get a second listen

When YouTube's auto-generated captions break lines badly or mishear words, switch to audio recognition to transcribe the speech again before translating.

English and the original, one above the other

English on top and the original line below, so names and terms match at a glance — handy for language practice too.

What people watch

What people watch with it on YouTube

  • Foreign vlogs and street interviews

    Street interviews and vlogs from Japan, Korea or Latin America: fast, casual speech that is easiest to follow with the original line alongside.

  • Lectures and open courses

    University lectures and TED talks, with terms shown next to the original so no sentence slips past.

  • News and interview shows

    Foreign news and long-form interviews, understood the day they go up.

  • Anime and series on official free channels

    Episodes streamed free on official channels, even when they have no English subtitles.

  • Gaming streams and replays

    Foreign-language streamers and hours-long replays; skip to the good part and read along.

  • Reviews and tutorials

    Product reviews and step-by-step tutorials from abroad, every setting and every step clear.

Compared with YouTube's own

Is YouTube's own Auto-translate enough?

If the video already has English captions, YouTube's own are all you need. WatchTranslate is for the cases below.

The video you're watchingIn YouTube's playerWith WatchTranslate
Has English captionsPick the English captionsYouTube's own captions are enough
Foreign captions, no EnglishCaptions settings → Auto-translate → English, one language at a timeTranslated to English with the original on screen
Auto-captions full of errorsTranslates the wrong words as they areListens to the speech again, then translates
No captions at allThe CC button is greyed out, no Auto-translateListens to the audio, first line in seconds

What the table shows is YouTube on a computer browser, signed out.

Tested

What we tried on YouTube

On a computer with the latest extension, signed out of YouTube, opening a Spanish talk, clicking WT on the player and choosing audio recognition.

  • Works

    Spanish TEDx talk · first English line in about 7 s

    Audio recognition listened to the Spanish speech; English on top, Spanish below.

Tested 9 Nov 2026 · extension 0.5.737 · Chrome · signed out of YouTube

Add to Chrome (free)
Watch on your phone

Scan to get the app

Android
iPhone
Get the app (free)

Then go back to the video: click WT on a computer, or tap Translate in the app.

In detail

Which to choose

What to do for each kind of video

The videoWhat to doWorth knowing
Has captions uploaded by the creatorSet Subtitle source to the video's own captions and translate them to EnglishTiming and line breaks follow the original track, closest to what the creator meant
Only YouTube's auto-captionsTranslate them first; switch to audio recognition if the lines are messyAuto-captions are machine-made, and their mistakes carry into the translation
No captions at allSet Subtitle source to audio recognition; the first line appears seconds after you press playWorks best where the voice is clear and the music is quiet
Why

Why Auto-translate shows no English

YouTube's Auto-translate is machine translation of captions the video already has. A caption track must exist first, uploaded by the creator or generated by YouTube, before Auto-translate appears in the captions menu. When a video has no track at all, the CC button is greyed out and there is nothing to translate. Fresh uploads, live replays and premieres often have no auto-generated captions yet, and YouTube players embedded on other sites can show fewer menu items.

The video has captions: translate them

Open the WatchTranslate panel, set Subtitle source to the video's own captions and Translate to English. Timing and line breaks follow the original track. If the auto-generated captions are messy, switch the source to audio recognition to re-listen to the speech before translating.

The video has no captions: subtitles from the audio

Set Subtitle source to audio recognition. WatchTranslate listens to the speech, writes the original line and translates it, showing both together. After you pause or skip, captions continue from the new position. On a Spanish TEDx talk on YouTube, the first English line appeared about 7 seconds after we clicked Start. For an hour-long video, use the panel's option to prepare the whole video in advance and keep watching while it works.

On a phone

Install the WatchTranslate app, open the YouTube video inside it and tap Translate. Source and language work the same way as on a computer.

How it works

How WatchTranslate does it

Where do the English subtitles come from when there are no captions?

WatchTranslate works through the playing video 30 seconds at a time: it recognizes the speech in that stretch to get the original line, then a large language model translates it to English using the sentences around it. That is why the first line shows up a few seconds after you press play. The current stretch and the next one go first; after you skip, it starts from the stretch you landed in.

Why do English and the original line up?

Each translated line comes from one original line on the same timeline, so English can sit on top with the original below, both at once — or you can show only one of them.

Do I pay for a video someone already translated?

Generated subtitles are kept per video, subtitle source and target language. When you watch YouTube with the extension on a computer, parts someone already translated to English from the same subtitle source can usually be reused: existing subtitles you read while signed in use no credits; only parts that still need generating do.

From YouTube

What YouTube itself says

From the YouTube Help Center, checked signed out of YouTube on .

  • Automatic captions come from speech recognition, and not every video gets them: they may not be created when the video is too long, the language isn't supported, there is a long silence at the start, the sound is poor or several people talk at once.

    support.google.com/youtube/answer/6373554
Best results

Get the most accurate subtitles

  1. Start with a clear voice

    Talks, interviews and vlogs where one person does most of the talking get the fastest and most accurate first line.

  2. Loud music? Read along with the original

    When the music is loud or several people talk at once, show English and the original together and check the original where the audio is unclear.

  3. Prepare long videos in advance

    For an hour-long lecture or course, prepare the whole video first and skip around freely while you watch.

FAQ

About English subtitles on YouTube

How is YouTube Auto-translate different from WatchTranslate?

YouTube's Auto-translate only translates existing captions and shows one language at a time. WatchTranslate translates captions when there are some, creates them from the audio when there are none, and can show English and the original together.

Why do some videos have Auto-translate and others don't?

Auto-translate needs a caption track first. If the creator uploaded none and YouTube has not generated one yet, the option does not appear.

The auto-generated captions are messy. Will the English be messy too?

When the original captions are badly split, switch Subtitle source to audio recognition so the speech is recognised again before translation.

Do I need to sign in to YouTube?

No. We tested signed out; any video that plays normally can get subtitles. WatchTranslate uses its own account to track your free minutes.

Does it work for Korean, Chinese or Spanish videos too?

Yes. Leave the video language on auto-detect or pick it yourself, and set Translate to English.

Can I see only the English line?

Yes. In the panel's Appearance tab, choose to show the translation only.

Can I download the subtitles?

Yes. Export them as SRT or VTT from the panel's Export tab.

Is WatchTranslate made by YouTube?

No. It is an independent browser extension and app that shows subtitles on YouTube's player without changing the video.

What WatchTranslate does

One tool to understand foreign-language videos on many sites

  • Translates as you watch, wherever you are in the video

    Jump anywhere and it translates there — no need to translate the whole video first.

  • Translate videos on YouTube, X, Bilibili and more

    Translate existing subtitles directly, or generate bilingual subtitles when there are none.

  • Better translation quality than traditional machine or real-time translation

    AI language models use context and connect the surrounding dialogue to understand meaning.

  • Export subtitles as SRT / VTT files

    Download generated subtitles as original, translated, or bilingual text and load them in common players.

  • Already translated by someone? Watch it free

    Sign up free to reuse generated subtitles for the same video, subtitle source and languages, even after your credits run out.

  • Bilingual subtitles on your phone

    Play video files on your phone, or open a video site in the app's built-in browser and tap Translate. A native player handles more video formats than the web player.

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