Finish
Chrome extension · 105 languages

Browse the web in Español

Lua quietly swaps the words on the pages you read into the language you are learning, easiest first. Show it you know them and it moves on to phrases. Sentences and whole pages are next.

Add to Chrome — Free See how it grows ↓

Free to start · No account needed · For Chrome

yourfavoriteblog.com/sunday-market

Sunday market

On Sunday my friend and I walk to the market. The family is always here, with music in the street. Of course, I think it is a good day.

Try the levels and hover a swapped word to peek at the original. This is only an example, shown in Spanish.

How it grows
  1. 00
    Plain English

    Where everyone starts.

    Start
  2. 01
    Everyday words

    The most common nouns, greetings and connectors.

    Live
  3. 02
    Connectors & time

    Always, never, today, here. The glue of a sentence.

    Live
  4. 03
    Topics

    Family, market, music, street. Words from real articles.

    Live
  5. 04
    Phrases

    "Of course", "I think". Chunks, not just words.

    Live
  6. 05
    Whole sentences

    Whole sentences switch once you can read every word inside them.

    Building
  7. 06
    Whole pages

    No English left. Just reading.

    Planned
preview · levels 5 and 6 are concept mockups

Sunday market

On Sunday my friend and I walk to the market.The family is always here, with music in the street.Of course, I think it is a good day.

level up ↑
6levels, from single words to whole pages
4levels working today
105languages to learn and look up
1click to pause Lua on any site

Textbooks teach you a language. Reading teaches you to live in it. Lua turns the pages you already read into the lesson.

Your pace

Prove it.
Then it moves on.

A

Peek

Hover a swapped word and the original appears. Curious, not committed.

mercadomarket
B

Say so

Already know it? One click on "I know this" and the word fades into the background.

familiaI know this
C

Just read

Keep seeing a word without ever peeking? Lua takes the hint and counts it as known.

siemprecalleclaro
Try it

Hover a word.Then prove it.

A sample page with Lua switched on. Hover or tap a green word to open its card, then answer the quick check. It is a static example in Spanish, and nothing here is sent anywhere.

yourfavoriteblog.com/city-mornings

City mornings

Every the city wakes up early. My and I walk down the to the , where there is .

Hover or tap a green word. The switch turns Lua off and on.

Quick check · Spanish

What does mercado mean?

“My amigo and I walk to the mercado.”

Now and then Lua asks a quick check like this about a word you met on a page. Press 1 to 4 to answer. In the real card, the meaning and example come from a word lookup, which needs a free account.

What you get

Built forreal reading

Reads like the web, not a worksheet

Lua swaps words inside the pages you already read: news, blogs, docs, forums. No flashcards to schedule, no app to open.

Easiest first

Everyday words come first, then connectors, topics and phrases. Nothing shows up before you are ready for it.

You earn each level

A level unlocks once you know most of the one before. Mark the words you know, or just keep reading.

Look up anything

Select any word or short phrase and press Look up. You get the translation, how to say it, what it means and an example, in any of 105 languages.

Pause any site

Banking, work tools, anything you want left alone. One click in the popup, per site.

Private by design

What you read stays in your browser. Only a word you choose to look up is ever sent for translation, and never the page around it.

Roadmap

What is live,what is next

  1. Live
    Words and phrases in place

    Four levels, hover to peek, mark what you know, pause any site.

  2. Building
    Look up any word

    Select a word on any page and get the translation, meaning and an example in 105 languages. Arriving with the next extension release.

  3. Building
    Guided levels for every language

    Every language has word lookups. Guided levels, where words are swapped in place, are ready for Spanish. Each other language gets its own once its word list is written word by word, so the grammar stays right.

  4. Building
    Whole sentences

    Level 5: sentences you can already mostly read switch over in full.

  5. Planned
    Whole pages

    Level 6: entire pages with no English left.

  6. Planned
    Web app, desktop and mobile

    Saved words, review and progress, plus lookups anywhere on your computer.

Languages

Any language.Pick yours.

Choose any of the 105 languages to build your plan. Every language has AI word lookups. Languages marked guided also have levels that swap words in place: Spanish right now.

English中文हिन्दीEspañolguidedالعربيةFrançaisবাংলাPortuguêsРусскийاردوKiswahiliBahasa IndonesiaਪੰਜਾਬੀDeutsch日本語فارسیमराठीతెలుగుTürkçeதமிழ்Tiếng Việt한국어Basa JawaFilipinoHausaItalianoગુજરાતીไทยپښتوಕನ್ನಡአማርኛBahasa MelayuPolskiYorùbáIgboУкраїнськаမြန်မာമലയാളംଓଡ଼ିଆOʻzbekchaNederlandsनेपालीسنڌيRomânăSoomaaliisiZuluMalagasyҚазақшаසිංහලខ្មែរKurdîAzərbaycanΕλληνικάČeštinaMagyarSvenskachiShonaKinyarwandaChichewaisiXhosaБеларускаяБългарскиСрпскиCatalàShqipՀայերենქართულიעבריתAfrikaansМонголລາວКыргызчаТоҷикӣTürkmenئۇيغۇرچەТатарчаHrvatskiSlovenčinaSlovenščinaLietuviųLatviešuEestiSuomiDanskNorskÍslenskaGaeilgeCymraegGalegoEuskaraMaltiEsperantoLatinaLëtzebuergeschCorsuFryskGàidhligKreyòl ayisyenMāoriGagana SamoaSesothoייִדישBasa SundaBosanskiМакедонски
МакедонскиBosanskiBasa SundaייִדישSesothoGagana SamoaMāoriKreyòl ayisyenGàidhligFryskCorsuLëtzebuergeschLatinaEsperantoMaltiEuskaraGalegoCymraegGaeilgeÍslenskaNorskDanskSuomiEestiLatviešuLietuviųSlovenščinaSlovenčinaHrvatskiТатарчаئۇيغۇرچەTürkmenТоҷикӣКыргызчаລາວМонголAfrikaansעבריתქართულიՀայերենShqipCatalàСрпскиБългарскиБеларускаяisiXhosaChichewaKinyarwandachiShonaSvenskaMagyarČeštinaΕλληνικάAzərbaycanKurdîខ្មែរසිංහලҚазақшаMalagasyisiZuluSoomaaliRomânăسنڌيनेपालीNederlandsOʻzbekchaଓଡ଼ିଆമലയാളംမြန်မာУкраїнськаIgboYorùbáPolskiBahasa Melayuአማርኛಕನ್ನಡپښتوไทยગુજરાતીItalianoHausaFilipinoBasa Jawa한국어Tiếng Việtதமிழ்Türkçeతెలుగుमराठीفارسی日本語DeutschਪੰਜਾਬੀBahasa IndonesiaKiswahiliاردوРусскийPortuguêsবাংলাFrançaisالعربيةEspañolguidedहिन्दी中文English
Pricing

Start free.Go further.

Free · forever

Learner

$0
  • 150 word lookups a day
  • AI page translation, up to 800 paragraphs a day
  • 1,000 characters of natural audio a day, then your browser’s voice
  • Monthly AI allowance: about 1,600 lookups’ worth
  • Every level as it ships
Add to Chrome
Pro · launching soon

Pro

$6/ month

or $49 a year, save 32%

  • 1,000 word lookups a day
  • AI page translation, up to 24,000 paragraphs a day
  • 20,000 characters of natural audio a day
  • Monthly AI allowance: about 10,000 lookups’ worth
  • Everything in Learner
Start free, upgrade later
Lifetime · launching soon

Lifetime

$129once

Pay once, no subscription

  • Pro’s daily limits, for as long as Lua runs
  • Monthly AI allowance: about 6,600 lookups’ worth
  • Every new language and level as it ships
Start free, upgrade later

Pro and Lifetime are planned; prices and limits may change before they launch. Lookups, audio and AI page translation need a free account. Every plan has a monthly AI allowance shared by lookups, page translation and natural audio: words someone already looked up often cost nothing from it, and when it runs out, lookups and page translation pause until the 1st and audio uses your browser’s voice. Daily limits reset at midnight UTC.

Questions

Good to know

Is it free?

Yes. Lua is free to start. The built-in word lists work without an account; lookups, audio and AI page translation need a free account with a confirmed email. Pro (monthly or yearly) and a one-time Lifetime plan for heavy use are planned, and the prices on this page may change before they launch.

Which languages can I learn?

105 and counting, from Japanese to Swahili and Welsh. Every language has word lookups, which work between any pair of them and use AI, so quality is strongest for widely spoken languages and can vary for smaller ones. A language also gets guided levels once its word list is written by hand, so the grammar stays right. Right now that is Spanish.

Does it work on every site?

It works on ordinary web pages. It leaves code blocks, text boxes and browser pages (like the Web Store) alone, and you can pause any site from the popup with one click.

Where is my progress stored?

In your browser, on your computer. If you sign in, your setup and progress are also saved to your account, encrypted, so they follow you to other computers. When you look up a word, that word is sent to be translated (with its sentence, if you turned on AI page translation); with AI page translation on, the paragraphs being translated are sent too. The privacy page has the details.

How does Lua decide I know a word?

You can tell it with "I know this". And if you keep seeing a word without ever hovering to peek at it, Lua takes that as knowing it.

What can it not do yet?

Sentences and whole pages are still being built, and Lua is in an early release. The roadmap shows exactly what is live and what is not.

Read it.Learn it.

Add to Chrome — Free