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Learn any language with dual subtitles and an AI tutor

Watch Netflix, YouTube, HBO Max and other platforms and learn any language without effort. Save the words you meet and practise them with fun games and an AI tutor.

Add to Chrome - free
A scene from Spirited Away: a train crossing the sea
Netflix
1:12:04

train

, .

Look, the train runs over the sea.

Sentence actions
Mira, el tren va sobre el mar. Look, the train runs over the sea.

Everything FluentAI does, one step at a time.

  1. Pick your platform

    Open Netflix, YouTube, Prime Video, Disney+, HBO Max, Apple TV or Crunchyroll, whichever one you already watch. FluentAI works on the sites you already use, so there is no new app to learn.

  2. Press play as usual

    Pick any video and press play, just like you always do. There is nothing to upload or copy. Your account, your queue and your favourite shows stay exactly where they are.

  3. Turn it on with one click

    Click the FluentAI logo in the corner of the player to turn it on. Switch it off the same way whenever you just want to watch.

  4. Two subtitles at once

    You now see two subtitles at once: the language you are learning on top and your own language right below it. Read the new language while your own is right there to lean on, line by line.

  5. Hover to understand

    Hover over any word to see what it means, and click the bookmark to save it to your notebook. Meet a new word, see its meaning without leaving the scene, and keep the ones worth remembering.

  6. A full card for every word

    Click a word to open its full card, with its meaning in this scene, a dictionary entry, example sentences and grammar. Everything you need to know about a word sits in one place, so you never open a dictionary tab.

  7. Tools on every line

    Next to every line are small buttons to hear it again, save it, copy it or break it down word by word. Use them to rewatch a tricky sentence, keep it for later or take it apart to see how it works.

  8. Learn at your own pace

    Watch at your own pace: pause after every line, repeat a line in an AI voice, or slow the video down. Choose the mode that fits your level today and change it whenever you like.

Immersion is the key to language mastery.

  1. You pick up words just by watching.

    Peters & Webb, 2018

  2. Subtitles in the language you learn make it work better.

    Montero Perez et al., 2013

  3. Reviewing at the right time makes words stick.

    Cepeda et al., 2006

What learners say

  1. Rated 5/5
    “For the first time in my life, I've encountered such a refined and perfect program. It's the absolute number one among browser extensions. Configurability, interface design, ease of use, and an impressive number of supported languages, everything is top-notch. Try it, and you'll never go back to any other translation program.”

    NeoBojownik · · Chrome Web Store

  2. Rated 5/5
    “A very solid alternative to Lenguage reactor, nice user interface and tons of options. Review exercises are also good and I'm surprised by the good support given by devs”

    Mokame News · · Chrome Web Store

  3. Rated 5/5
    “Great extension to learn languages simplify by consuming content on Youtube or other streaming platforms. I especially love the feature that can generate subtitles for any video.”

    Matthieu Brouillard · · Chrome Web Store

  4. Rated 5/5
    “I have to admit that is the Best ai tool ever the Team is really always there answering and updating they added like 10 New features the last month only”

    Rado elsory · · Chrome Web Store

  5. Rated 5/5
    “Now, I am having fun learning Spanish again. Thanks for your work”

    Abdullah Amer · · Chrome Web Store

  6. Rated 5/5
    “i recommend it for any language learner, contains a lot of features”

    ahmed hassen · · Chrome Web Store

  7. Rated 5/5
    “Simply amazing app! Works very well. The new features are awesome, thanks a lot to the team. I feel like it helped me so much with my learning of Spanish and for that price its really worth it. Looking forward for the upcoming built in games like fllashcards etc! Id also love to have it on mobile app one day..”

    Joseff Cohen · · Chrome Web Store

  8. Rated 5/5
    “Works perfectly with minimal configuration for Netflix. This is the first I've ever written a review for an extension, thank you so much for making this!”

    Ahmed Nasr · · Chrome Web Store

  9. Rated 5/5
    “So far this is the best extension I have ever tried for learning a language when watching my Netflix series or I use it to watch Netflix videos that I struggle to understand when the audio is simply too fast (in english). Also I must admit that the FluentAI Neural Subtitles system on Youtube video is amazing compared to the platform one !! Love that :). In my opinion, this extension is underrated and should be brought up to a broader audience !!”

    Argy Yan · · Chrome Web Store

  10. Rated 5/5
    “The most stylish extension I've ever had. Extremely useful, works great.”

    Vladyslav Haman · · Chrome Web Store

  11. Rated 5/5
    “in just a word, GREAT. the UI is beautiful, it works smooth and explains every word very clearly. just love it.❤️”

    Sepehr Spr · · Chrome Web Store

  12. Rated 5/5
    “I’ve been using this extension for a while now, and it’s amazing how much my language skills have improved just by watching videos. It feels effortless and fun, and I love how it fits into my daily routine. The autodubbing feature in particular is very useful for me.”

    Adir Yaakov · · Chrome Web Store

Frequently asked questions

FluentAI helps you learn a language from the shows you watch. It adds subtitles in two languages at once. Hover a word to see what it means, hear it, and save it. It works in Chrome and Firefox on Netflix, YouTube, Prime Video, Disney+, HBO Max, Apple TV, Hulu, Crunchyroll and LinkedIn Learning.

More than 130. AI subtitles, which FluentAI makes for videos that have none, work in about 99 of them. Translations are best in widely spoken languages.

Play a video. FluentAI shows a translation under each subtitle line. Hover a word to see what it means and hear it. Save it, and it comes back later in your flashcards so you remember it.

Free for everyone: dual subtitles, word translation on hover, pronunciation, saved words, flashcards, Anki export, auto pause and repeat, a full transcript, a book reader and your own videos. Paid plans add a click on any word for its full meaning, examples and word forms, plus sentence breakdown. AI subtitles, for videos that have none, use credits. The free plan gets 4,500 credits a month, about 3 hours of video. The pricing page lists what each plan includes.

Yes, and it never runs out. You get dual subtitles, hover translation, pronunciation, flashcards, the book reader and your own videos. Paid plans are on the pricing page.

You learn from the shows you already watch, on the sites you already use. FluentAI has no video library of its own. Every word you save comes back in your flashcards.

FluentAI works in Chrome and Firefox on a computer. Safari is not supported yet.

Yes, for iPhone. It has the AI tutor, your saved words and your flashcards. Dual subtitles on Netflix and other streaming sites need the browser extension on a computer.

No. The subtitle tools start only on video sites like Netflix and YouTube. On other pages, it only adds a word lookup when you select a word.

Open the pricing page and choose a plan. You can pay monthly or yearly. On iPhone, you can also buy a plan in the app through the App Store.

Yes. Cancel in your account settings on the website. If you paid in the iPhone app, cancel in your Apple subscriptions. Paid features stay on until the period you paid for ends.

Something else on your mind? Talk to us

Your next episode can teach you something.

Add to Chrome - free

Free plan · Two-minute setup · No credit card