Scan to install on ChromeScan to install on Chrome

Multiple subtitles at once on Netflix.
Learn a language while you watch.

Lexisub overlays your native language and the one you're learning on the same screen — perfectly synced. Click any word to save it, then review your phrases later. Every show becomes a lesson.

Chrome extension · Interface in 12 languages · 14-day full free trial · Cancel anytime

What is Lexisub?

Lexisub is a Chrome extension that shows two or more subtitles at the same time on Netflix — for example, the language you're learning above one you already read — synced to Netflix's official subtitle tracks. Save any line with one key, review your saved phrases in study mode with segment loops, and export them to Anki. It's built for language learners, especially Gen Z viewers who learn while they stream.

  • Works on: Netflix in Google Chrome (Prime Video, Disney+ and Max in beta)
  • Subtitles: official Netflix tracks, your own .srt/.vtt files, or AI subtitles with your own translation key
  • Learning tools: one-key phrase saving, study mode with A–B loops, export to CSV (Anki), Markdown and PDF
  • Price: 14-day free trial with every feature, then Pro from €2.08/month billed yearly (€24.99/year) or €2.49/month — launch prices
  • Interface: 12 languages, including English, Korean, Spanish, Japanese and Chinese
Lexisub on Netflix: multiple synced subtitle lines over the player, with the control panel for picking languages

🎬 Multiple languages, one screen

Your native language and the one you're learning, overlaid on the Netflix player and perfectly synced. Click any word to save the whole line for later.

Get Lexisub

Across languages

How learners use Lexisub

Study scenarios with dual subtitles — from your first episode to fluent, in the language you're already watching.

Dos líneas en pantalla y por fin dejé de pausar en cada frase.
Aprendiendo español con telenovelas
気になった言葉をクリック、意味はその場で。だから記憶に残る。
アニメで日本語を勉強中
K-드라마가 배경 소음에서 매일의 수업이 됐어요.
한국어 학습 중
Enregistrer une phrase, c'est une seule touche. Ma liste de vocabulaire a enfin tenu un mois.
J'apprends le français
Installiert, auf Play gedrückt – läuft. Kein Handbuch, kein Setup.
Ich lerne Deutsch
上面中文,下面我已经会的语言。再也不用对着汉字发懵。
学习中文
Séries brasileiras em velocidade real, com uma rede de segurança. Exatamente o que eu precisava.
Aprendendo português
Due clic e le due lingue erano sullo schermo. Tutta qui la curva di apprendimento.
Sto imparando l'italiano
Официальные дорожки идеально синхронны. Ничего не плывёт — я перестал бороться с инструментом.
Учу русский
अंग्रेज़ी मैं पहले से तेज़ पढ़ता हूँ, तो हिंदी के साथ जोड़ना बढ़िया चलता है।
हिंदी सीख रहा हूँ
سطران، ضغطة واحدة للحفظ، وتصدير إلى Anki. الدورة كاملة في مكان واحد.
أتعلّم العربية
Tôi ra nước ngoài chỉ với tiếng Anh. Giờ phim dạy tôi cách người ta nói thật sự.
Học ngôn ngữ bản địa
Hesap yok, öğretici yok — on saniyede anladım.
Türkçe öğreniyorum
Episode pendek, tonton ulang, simpan frasa yang berulang. Sederhana, dan berhasil.
Belajar bahasa Indonesia
Mijn eigen ondertitels laden lokaal — er wordt niets geüpload. Dat vond ik belangrijk.
Ik leer Nederlands
Det håller sig ur vägen. Verktyget försvinner och serien får undervisa.
Jag lär mig svenska
Własny klucz API — za napisy z AI zapłaciłem grosze, bez narzutu.
Uczę się polskiego
หน้าจอเป็นภาษาผม แทบไม่ต้องตั้งค่าอะไร เริ่มเรียนได้ในหนึ่งนาที
กำลังเรียนภาษาไทย
English audio with English subtitles — I finally catch every word. Huge for listening.
Improving English
Bor i Norge med bare engelsk. Norsk TV pluss engelske undertekster er kveldsøvelsen min.
Jeg lærer norsk
Dos líneas en pantalla y por fin dejé de pausar en cada frase.
Aprendiendo español con telenovelas
気になった言葉をクリック、意味はその場で。だから記憶に残る。
アニメで日本語を勉強中
K-드라마가 배경 소음에서 매일의 수업이 됐어요.
한국어 학습 중

Made for Gen Z

For a generation that learns while it streams

For a lot of Gen Z learners there is no separate "study time" — the language comes from the K-dramas, anime and international series they already watch. Lexisub is built around that habit: no textbook, no streak to protect, just tonight's episode with two languages on screen.

📺

The episode is the lesson

Nothing extra to schedule. Put the language you're learning above one you already read and keep watching — the meaning lands in the same second as the line.

💬

How people actually talk

Slang, jokes, interruptions and fast comebacks — the real speech textbooks skip, straight from the shows everyone is talking about.

⚡

Save with one key, review anywhere

One key saves the whole line with its scene. Pro syncs your phrases to every device and exports them to Anki, Markdown or PDF.

Built for language learners

Not just multiple subtitles — a study tool wrapped around the shows you already watch.

🎬

Multiple subtitles

Show multiple languages at once on Netflix, using official subtitle tracks or your own .srt / .vtt files.

🎯

Perfectly synced

Subtitles track playback frame-by-frame. Nudge timing if a file is off — no buffering, no re-encoding.

💾

Save & review phrases

Click a word or hit a shortcut to save the whole line in every language. Sign in and your phrases sync to the cloud — reach them on any device. Export to CSV (Anki), Markdown, or PDF.

🔁

Study mode

Loop any saved segment to shadow and repeat. Your phrase cards on one side, the player on the other.

🌍

Your own AI translation

No track in your language? Generate one with your own DeepL, OpenAI, or Google Translate API key.

🔒

Private by design

Your saved phrases stay on your device. No ads, no trackers, no selling your data.

Lexisub study mode: saved phrase list on the left, Netflix player with an A–B segment loop on the right

🔁 Study mode

Loop any saved segment to shadow and repeat. Your phrase cards on one side, the player on the other.

Get Lexisub

Speaks your language — and theirs

Lexisub's whole interface is localized, and it pairs subtitles in any language Netflix carries.

English한국어中文日本語हिन्दीEspañolFrançaisالعربيةবাংলাPortuguêsРусскийBahasa Indonesia
🗣️

Interface in 12 languages

Menus, panels, and tips display in your language — switch instantly from the popup. Right-to-left scripts like Arabic render correctly.

🌐

Pair any subtitle languages

Stack your native language with the one you're studying using Netflix's official tracks — dozens of languages per title. No track for a pair? Generate one with your own translation key.

Lexisub settings: subtitle size, position and colour controls, preferred languages, 12-language interface, and an AI translation key field

🎚️ Make it yours

Set subtitle size, position, and colours, pick your preferred languages, and plug in your own AI translation key. The interface itself speaks 12 languages — and every change applies instantly.

Get Lexisub

How it works

Three steps from install to your first saved phrase.

Install the extension

Add Lexisub to Chrome and open any title on Netflix. A control panel appears on the player.

Pick your languages

Choose the subtitle languages you want on screen. Lexisub overlays them, synced to playback.

Save & review

Click words to save phrases, then study them later with export, loops, and side-by-side review.

Why learners go Pro

The trial unlocks everything for 14 days. After that, the free plan keeps one subtitle line on screen — Pro keeps the whole learning loop: watch, save, review, remember.

FeatureFree (after trial)Pro
Subtitle lines on screen at once1Unlimited
Save lines while you watch✓✓
Review saved phrases in study mode, with segment loops—✓
Export to Anki (CSV), Markdown and PDF—✓
Cloud sync across devices—✓
Start the 14-day free trial

No card needed for the trial. Pro from €2.08/month on the yearly plan (launch price).

Pricing

Start with a 14-day full free trial. After that, keep a single subtitle layer for free, or go Pro for unlimited.

Free 14 days
Free / 14 days
Full Pro — no card needed
  • Unlimited subtitle layers
  • Save, export & study phrases
  • Study mode & segment loops
  • Bring-your-own-key AI translation
Start free trial
Launch promo
€3.49€2.49 / month
Limited promo — €3.49/mo after it ends
  • Everything in Free
  • Cloud sync — saved phrases on any device
  • Cancel anytime
BEST · 5 months free
€29.99€24.99 / year
€2.08 / month — save 40%
  • Everything in Free
  • Cloud sync — saved phrases on any device
  • Cancel anytime

Frequently asked questions

What is Lexisub?

Lexisub is a Chrome extension for language learners that shows two or more subtitles at once on Netflix, synced to the official subtitle tracks. You can save any line with one key, review saved phrases in study mode, and export them to Anki.

Who is Lexisub for?

Language learners who would rather study with real shows than with drills — especially Gen Z viewers who already watch K-dramas, anime and international series and want to pick up the language along the way. Beginners use the second line to follow native content; intermediate learners use it as listening practice with a safety net.

Is Lexisub free?

Every new install gets a 14-day free trial with every feature and no card required. After the trial you can keep using one subtitle line for free. Pro adds unlimited subtitle lines, phrase review, study mode, exports and cloud sync for €24.99 per year (about €2.08 per month) or €2.49 per month at the current launch price.

Which streaming services does Lexisub work on?

Netflix is fully supported in Google Chrome. Prime Video, Disney+ and Max are available in beta, using the subtitles already shown on screen. You can also load your own .srt or .vtt subtitle files.

How is Lexisub different from other dual-subtitle extensions?

Lexisub reads Netflix's official subtitle tracks, so timing stays in sync. It can show more than two languages at once, saves a whole line with one key press, and includes a study mode with segment loops and Anki export. AI subtitles use your own translation key, so you pay the provider directly with no markup.

Is Lexisub affiliated with Netflix?

No. Lexisub is an independent browser extension and is not affiliated with, endorsed by, or sponsored by Netflix or any other streaming service. All trademarks belong to their respective owners.

How am I billed?

Payments are handled by Paddle, our Merchant of Record. Paddle processes your payment, issues your receipt, and handles applicable taxes. We never see or store your card details.

Can I cancel or get a refund?

You get a 14-day free trial to evaluate everything before you pay, so you only subscribe once you know it works for you. You can cancel anytime and keep Pro until the end of your paid period; we don't pro-rate unused time. Paid periods are non-refundable except where required by law or granted at our discretion. See our Terms for details.

What languages does Lexisub support?

The interface is available in 12 languages — English, Korean, Chinese, Japanese, Hindi, Spanish, French, Arabic, Bengali, Portuguese, Russian, and Indonesian — switchable instantly from the popup. For subtitles themselves, you can pair any of the official languages a Netflix title carries, load your own .srt/.vtt files, or generate a missing track with your own translation key.

Do I need an API key?

Only for AI translation of languages Netflix doesn't provide. Multiple subtitles from official tracks or your own files work without any key.

What data do you collect?

An email address to link your subscription, and that's it on our servers. Your saved phrases and settings live in your own browser. See our Privacy Policy for details.