🇺🇸 English
🇺🇸 English 🇷🇺 Русский 🇩🇪 Deutsch
Get early access

Stop to repeatrepeating your mistakes.

YabLab lives in your browser and fixes your English right as you write — then explains every mistake in your language and helps you practice it until it is gone for good.

Get early access — free See it in action ↓
  • Works in Chrome
  • Explanations in your native language
The loop

Your mistakes are the curriculum

  1. 1
    YouTubeRedditGmailDocs…

    Use everything as usual

    Watch YouTube, read articles, write comments and emails. No course, no “study time” — your routine is the input.

  2. 2
    am agree agree

    YabLab turns it into material

    Unknown words become flashcards. Slips get fixed, explained in your language — and filed into your personal error profile.

  3. 3
    Yesterday we agreed on…

    Train precisely on you

    Word flashcards and drill algorithms built from your mistakes help you practice each one until it is gone for good.

Sounds like magic? Watch it run ↓
Live demo

Watch the loop run

One browser, four stages — from subtitles to practice.

⊙ youtube.com/watch?v=budget-review ⏸ paused

Planning a launch budget

▶

We need a thorough review before launch.

Нам нужна тщательная проверка перед запуском.

thorough

тщательный, доскональный

✓ Saved to flashcards

What our budget review taught us

A thorough audit of last quarter helped us negotiate far better terms with every vendor.

negotiate

договариваться

review due tomorrow

thorough

тщательный, доскональный

new word

Join the discussion

I am agreeagree with this.

am agree agree

“Agree” is a verb, not an adjective — “am” doesn’t belong here. I agree, she agrees.

Two days later, in your practice

Yesterday we ___agreed on the plan. (agree)

✓ Closed. It won’t be back.

Simplified for clarity — the real drills are smarter: fix, fill, choose, produce. Still have questions? See the magic live →

You can add an unknown word to flashcards from any site.

Not what you used before

Our goal: for you to outgrow YabLab.

Grammarly

Fixes your text and moves on — it works best when you keep needing the Fix button. We want to make you better and stop the mistakes from coming back.

Duolingo

A game with its own course and its own rules. Your real life is the course: your chats, your emails, your videos — and soon any text around you.

Anki & friends

Powerful, but you maintain it by hand. YabLab’s goal is to kill the busywork and make learning as smooth as it gets.

Preply, italki & co.

Tutors are great, but they can’t be with you 24/7 — YabLab can. It knows every mistake you make and is always ready to help.

Pricing

Free to learn. Pro to never hit a limit.

Free

$0

  • Dictionary, flashcards & spaced repetition
  • 30 AI writing checks with explanations a day (alpha allowance)
  • Fixes as you write
  • Word highlighting on sites
  • Paired YouTube subtitles
  • Personal error profile
Start free
−40%

Founding Member

$9/month $15

For the alpha cohort: all of Pro, the founder badge, and this price — yours for as long as you stay subscribed.

Become a founder

Pro

$15/month

or $90/year — $7.50/month

  • Everything in Free
  • Checks & explanations — no daily caps
  • Advanced error drills
  • Priority support
Go Pro

Payments are handled by Paddle. Cancel in two clicks, 14-day money-back guarantee. Pro has no daily caps — only a fair-use ceiling against abuse.

Roadmap

Where we are — and where this goes

Live today
  • The writing checker with explanations in your language
  • Hover dictionary & one-click flashcards
  • Words you are learning highlighted on any site
  • Paired YouTube subtitles
  • Error profile & smart drills
  • Spaced repetition
  • Russian and English support
  • Google Chrome extension
  • Ask YabLab — your AI language assistant
  • Text adapted to your level
In progress
  • Alpha polish & onboarding
  • Full German support
  • macOS app
  • iOS app
  • Spanish support
  • French support
  • Italian support
Next
  • More languages
  • Windows app
  • Android app
  • Firefox extension
  • Google Docs & fancy editors
  • Group rooms for speaking practice
  • An AI partner for speaking practice
Later
  • Branching into other areas of education?
  • Whatever the founding cohort asks for loudest

No dates — we are tiny and fast. Tell us what’s missing: when we are this small, a single message carries real weight.

FAQ

Fair questions

Does YabLab read everything I type?

No. Checking is off until you explicitly turn it on, and you can pause it or disable it per site in one click. Text is sent for checking only while it is on, and is never sold or used for advertising.

What is free — and will it stay free?

The dictionary, flashcards, spaced repetition and your error profile are free for good. Daily AI allowances (30 checks today) may be tuned during the alpha as we learn real usage — but a useful free tier is part of the model.

Which languages can I learn?

English is first-class today, and Russian pairs with it — learn English with Russian explanations, or the other way around. German is close behind; Spanish, French and Italian follow.

What happens when I stop making a mistake?

Exactly what should: it leaves your drills. That is the point — we would rather you outgrow the corrections than depend on them.

Can I get a refund?

Yes — within 14 days. Payments run through Paddle, our merchant of record, so refunds are handled reliably.

Where does it work?

Chrome (and Chromium browsers) today, Firefox next. The web app works everywhere, including your phone.