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Grammar & Style Checker

Paste a draft and see the five things that quietly weaken writing light up as you type: stiff formal words, filler intensifiers, passive voice, quotation-mark slips and modifiers that dangle. It runs entirely in your browser, so nothing you paste is ever sent anywhere.

Everything runs in your browser. Nothing is sent anywhere, and nothing is stored.

Everything runs in your browser. Nothing is sent anywhere, and nothing is stored.

What the colours mean

How to use it

This checker is deliberately conservative. Every flag is a prompt to look again, not an order to change something. Formal words are fine in the right register, the passive voice has its uses, and not every long paragraph is wrong. The point is to make the patterns visible so you decide, sentence by sentence. For a full grammar engine that also fixes as you write across email, docs and the browser, Grammarly is the tool most writers reach for.

The five checks, briefly

Stiff words make prose sound like a contract. Filler intensifiers pad without adding meaning. Passive voice hides who did what. Quotation punctuation trips up almost everyone: in US style, commas and periods sit inside the closing quote. Opening modifiers are the classic dangling-participle trap, where the phrase before the comma attaches to the wrong subject.

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