Chrome extension for YouTube

Watch vlogsseriesmusicgameplayK-popinterviewslessonsmusic videoschallenges
in another language. And get every word.

Telidioma puts subtitles in the language you are learning and in your own language on YouTube videos. Click a word or phrase and see the translation right away, without leaving the video.

Free to try Works on any video with subtitles 1,800+ people already use it
youtube.com/watchTelidioma
MrBeast video on YouTube with Telidioma dual subtitlesYouTube vlog with Telidioma dual subtitlesSeries scene on YouTube with Telidioma dual subtitles Dual subtitles, synced with the speech
enorme
huge, enormous
Very big. Stronger than “grande”: una casa enorme.
+ Save word
Esto va a ser enorme. This is gonna be huge.
Word savedgoes to your vocabulary
Hear the pronunciationat any speed you like
Why it works

The language in videos is not the language in textbooks.

People talk fast, blend words together and use slang. With Telidioma you learn from the real lines in the videos you already watch, not from made-up textbook sentences.

Before

You understand half the video and get lost when they talk fast.

With Telidioma: both languages on screen and the translation of any word in one click.
Before

You learn a word today and forget it tomorrow.

With Telidioma: the words you save become flashcards and come back for review at the right time.
Before

You start a course full of energy and quit in the second week.

With Telidioma: you learn from the videos you already watch every day, with no extra time needed.
How it works

Three steps and you are already learning.

1

Install the extension

One click on the Chrome Web Store. Free to start, no card needed.

2

Open a video

Any YouTube video with subtitles becomes study material: music video, series, vlog, interview.

3

Click and learn

Click the words you do not know. The translation shows up right away and the word is saved for review.

Features

Way more than translation.

Understand, remember and improve, while you watch what you love.

Dual subtitles

Both languages on the same screen, synced with the speech.

Click and understand

Click a word and see the translation, the meaning and an example right away.

Whole phrases

Not just single words: select the whole phrase and see what it means.

False friend alert

Warns you when a word is a trap, like “éxito”, which means success and not exit.

My vocabulary

The words you save become flashcards with spaced repetition.

Pronunciation

Hear every word at the speed you prefer.

The science behind it

A word only sticks if it comes back at the right time.

Without review, we forget almost everything within a few days. Telidioma brings each word back just before you would forget it, and every review keeps it in your memory for longer.

100%50%0%day 1day 3day 7day 30
No reviewWith Telidioma reviewsEach review

Illustration of the Ebbinghaus forgetting curve. Not Telidioma data.

Your way

Works with what you already love.

Any YouTube video with subtitles becomes a lesson: music videos, series, vlogs, interviews, gameplay and much more.

K-pop and BTSK-dramas and KoreaMusic and music videosTravelRoutine and studySeries and moviesCelebrities
Who uses it

More and more people understanding what they watch.

+1,800people with a Telidioma account
+20KYouTube videos watched with Telidioma subtitles
+7Mlines translated as the video plays

Telidioma numbers since August 2026.

Pricing

Less than R$ 0.50 a day
to understand what you watch.

Try it free and subscribe when you want it without limits.

BEST VALUE · SAVE 40%

Telidioma complete

Everything unlocked, on every YouTube video

US$ 3.74 /mo

US$ 44.90 once, with Pix or card. No automatic renewal.

You save R$ 120 a year
  • Unlimited translations on every YouTube video
  • Dual subtitles and whole phrase selection
  • My vocabulary with flashcards and review
  • Pronunciation with adjustable speed
Get the yearly plan
FAQ

Frequently asked questions

Did not find your question? Talk to us through support.

What is Telidioma?+

A Google Chrome extension that adds subtitles in the language you are learning and in your own language to YouTube and Netflix. You click a word or phrase and see the translation, the meaning and an example, without leaving the video.

Which languages can I learn?+

English, Spanish, French, German, Italian, Japanese and Korean. The translations and explanations show up in your own language, and you can switch both in the extension settings.

Which videos does it work on?+

Any YouTube video that has subtitles in the language you are studying, plus movies and series on Netflix with your own account: music videos, series, vlogs, interviews, lessons and gameplay.

Is it good for beginners?+

Yes. With your own language on screen you understand the video from day one, and the explanations adapt to your level. More advanced learners use it only for the hard words.

How do I install it?+

Click Install free, add it on the Chrome Web Store and you are done: open a YouTube video and the Telidioma subtitles show up. It works in Chrome on a computer.

What can I do for free?+

You install it with no card and use dual subtitles with a few translations a day. The subscription unlocks everything without limits.

How do I cancel?+

The yearly plan is a single charge with no automatic renewal. You can cancel the monthly one anytime from your account, and access continues until the end of the month you paid for. You also have 7 days to change your mind and get your money back.

Is my data safe?+

We do not sell your data and we do not show ads. Payment is handled by Stripe, and your card number never goes through our servers. The details are in the privacy policy.

Your next video can be your next lesson.

Install Telidioma and start truly understanding what you watch. It takes a minute and needs no card.

Start free todayNo card to try it Install free