Writing-first grammar tool

Learn English vocabulary & grammar by writing
Free AI-powered English learning tool. We'll spot your grammar mistakes and explain why. We'll build your vocabulary automatically. Practice exercises that adapt to your weak spots.

Free to start. No credit card required.

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Here's how it looks

Your text

Yesterday I didn't saw my friend at the university. I was waiting for him near the library but he came only in the evening. He said he was busy because he готовился for the exam all day.

1 error
1 word to learn

Feedback

Base form after "didn't"

Your version

I didn't saw him yesterday

Corrected

I didn't see him yesterday

готовилсяRU

was preparing / was studying

Added to vocabulary
The usual way

You do everything except actually learn

  • Google the same rule, then hunt for exercises
  • Spend hours building flashcard decks by hand
  • Practice random topics that don't match your gaps
  • Get tired and quit — "I'll do it tomorrow"
How Blindspot works

Mistakes become lessons

  • 1
    Write about any topic — errors and words are caught automatically
  • 2
    Rules and vocabulary are built from your mistakes
  • 3
    Exercises adapt to your weak spots, not a textbook order
  • 4
    Everything in one place — no tabs, no assembling
Chrome Extension

Learn while you browse

Save words

See an unfamiliar word on any website? Select it, click the + button, and it's instantly translated and added to your vocabulary. No copy-pasting, no switching tabs.

  • Works on any website
  • Auto-translates to your native language
  • Syncs with your Blindspot vocabulary
Add to Chrome — it's free

Preview

endeavour

Blindspot

endeavour

стараться, попытка

Saved!
What's inside

Not another grammar quiz app — a real English learning tool

Writing

Write about anything

Pick any topic. Your text gets checked for grammar and vocabulary in one go.

Mix languages freely

Don't know a word? Write it in your language. We'll translate it and add it to your vocabulary.

Vocabulary

Words saved automatically

Unknown words from your text go straight into your personal dictionary. No manual work.

Vocabulary by topic

Generate word packs on any subject — travel, work, exams — and learn what you actually need.

Grammar

Exercises that adapt

Grammar practice adjusts to your level. Get harder tasks as you improve, easier when you struggle.

Think, don't guess

No multiple choice. You analyze sentences, spot errors, and explain why — the way real understanding works.

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