Grammar Checker · Real-time, free

Free Grammar Checker

Fix grammar, spelling, and punctuation mistakes in seconds. Paste your essay, email, or article into the grammar checker and get clear, one-click suggestions to clean up every line. The checker explains the rule behind each fix so you learn as you edit. Free, no signup, works on any device.

Free grammar checker
Real-time
Filter
Due to the fact that mechanization was rapid, employment patterns shifted within a single generation. The new factories were literally transforming entire towns, and it can be observed that wages rose by a really significant amount. Their many workers who left the countryside but a fewer of them returned. The Industrial Revolution it changed everything.
Checking…
Active suggestion · 1 of 7
Grammar · Subject-verb / article
Use fewer of them instead of a fewer of them
Why? “Fewer” is a quantifier — don't combine it with the indefinite article “a”. Use “fewer” alone for countable nouns.
Up next
"Their" → "There"
Pronoun "it" already implied
Replace "literally"
0 / 1,000 words—Sign up free for unlimited
Your text stays private. We never store, share, or train AI on what you write.
Real-time, as-you-type·Grammar, spelling, punctuation·US, UK, AU, CA English·No signup needed
How it works

How the Grammar Checker works

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Step 1

Paste or type your text

Drop in your essay, email, article, or report. The grammar checker scans your writing in real time, so suggestions appear as you type. You can also paste a finished draft for a one-shot review.

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Step 2

Review color-coded suggestions

Errors are highlighted by category: grammar in red, spelling in orange, punctuation in blue, style in purple. Hover any underline to see the suggestion and the rule behind it. Filter by category if you only want to focus on one type of issue at a time.

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Step 3

Accept or dismiss each fix

Click any suggestion to apply it. Dismiss it if you want to keep your original wording. Use Accept All to apply every safe fix in one click. Your text updates in place so you keep your flow.

Why it matters

Why grammar errors cost you more than you think

Most grammar mistakes are not catastrophic on their own. The damage adds up. A few comma splices in a cover letter. A missing apostrophe in an email. A run-on sentence in the first paragraph of your essay. Each one chips away at how seriously your reader takes you.

Job applications get filtered out for typos

Hiring managers and ATS scanners both penalize resumes and cover letters with grammar errors. A clean draft is the bare minimum to get past the first screen.

Essays lose marks for the same mistakes over and over

Professors mark down for sentence fragments, comma splices, and subject-verb agreement issues every term. These are the lowest-effort points to recover. Run your draft through the grammar checker before you submit and you get them all back — Purdue OWL's grammar resources are a good reference if you want to study the rules behind each fix.

Emails get ignored when they look careless

A typo-heavy email signals you did not take the time to write it well. Recipients respond slower, or not at all. A 30-second grammar check fixes it before you hit Send.

AI-generated text has its own grammar issues

ChatGPT and other language models occasionally produce awkward sentence structures, missing articles, and inconsistent tenses, especially in long outputs. Run AI drafts through the grammar checker before you publish, and pair it with our AI detector if you also want to know how AI-like the text reads.
What we check

What the grammar checker catches

Grammar is more than spelling. The checker catches eight categories of issues across your writing, color-coded so you can see at a glance what needs attention.

Grammar errors

Subject-verb agreement, verb tense consistency, pronoun reference, article use, preposition choice, and modifier placement.

"The team are winning" → "The team is winning"

Spelling errors

Typos, misused homophones (their, there, they're), regional spelling variants, and words spelled correctly but used in the wrong place.

"Their going to the store" → "They're going to the store"

Punctuation

Missing commas, comma splices, run-on sentences, apostrophe placement, semicolon use, quotation mark consistency, and the Oxford comma based on your style preference.

"It was cold I wore a coat." → "It was cold, so I wore a coat."

Sentence structure

Sentence fragments, run-on sentences, missing words, awkward word order, and parallelism issues in lists.

"Running, swimming, and to cycle." → "Running, swimming, and cycling."

Capitalization

Proper nouns, titles, sentence starts, and headline case. The checker also handles edge cases like brand names and acronyms.

"i live in london." → "I live in London."

Word choice

Repeated words, weak verbs, vague nouns, and common confusables like 'affect' vs 'effect' or 'fewer' vs 'less'.

"It will effect the outcome." → "It will affect the outcome."

Style and clarity

Premium

Sentence-length variety, passive voice, wordiness, and hedging language. Useful for tightening business writing and academic papers.

"Due to the fact that" → "Because"

Tone

Premium

Flags when your tone shifts from formal to casual mid-document, when a sentence sounds harsher than intended, or when an email reads as too aggressive or too passive.

"You need to fix this now." → "Could you take a look when you have time?"
Use cases

Built for the way you write

Students

Submit cleaner essays. Run your draft before you hand it in. The checker catches the same mistakes professors mark down for: comma splices, subject-verb agreement, sentence fragments, and missing apostrophes.

Professionals

Send emails and reports without typos. Edit cover letters and resumes line by line. Catch the small mistakes that quietly damage your credibility.

Writers & bloggers

Self-edit faster. Run your draft through the grammar checker, accept the safe fixes, and focus your manual editing on the harder stuff like flow and structure.

Non-native speakers

Catch errors you would not always spot, with rule explanations for every fix. Improve your written English over time. Switch between American, British, Australian, and Canadian dialects with one click.

SEO & content teams

QA every blog post and landing page before it goes live. Run grammar checks in your CMS using the API or WordPress plugin. Keep editorial standards high without manual review.

The workspace

Inside your writing workspace

Free grammar checker
Real-time
Filter
Due to the fact that mechanization was rapid, employment patterns shifted within a single generation. The new factories were literally transforming entire towns, and it can be observed that wages rose by a really significant amount. Their many workers who left the countryside but a fewer of them returned. The Industrial Revolution it changed everything.
Checking…
Active suggestion · 1 of 7
Grammar · Subject-verb / article
Use fewer of them instead of a fewer of them
Why? “Fewer” is a quantifier — don't combine it with the indefinite article “a”. Use “fewer” alone for countable nouns.
Up next
"Their" → "There"
Pronoun "it" already implied
Replace "literally"
0 / 1,000 words—Sign up free for unlimited
Your text stays private. We never store, share, or train AI on what you write.
Real-time, as-you-type·Grammar, spelling, punctuation·US, UK, AU, CA English·No signup needed

Real-time, as-you-type checking

Suggestions appear as you write. No need to paste, click, and wait. The checker stays out of the way until you want to see what it found.

Color-coded categories

Grammar, spelling, punctuation, and style each get their own color. Filter by category to focus on one type of issue at a time.

Plain-English explanations

Every suggestion comes with a short explanation of the rule. You see why "than" should be "then", not just that it should change.

Accept all, individually, or dismiss

Apply all safe fixes in one click, work through them one at a time, or dismiss the ones you disagree with. Your call.

Dialect switching

Pick American, British, Australian, or Canadian English. The checker adjusts spelling, punctuation, and a few grammar rules to match your dialect.

Built-in editor

Edit, paste, and rewrite directly in the tool. No need to switch back to Word or Google Docs. Your document auto-saves if you are signed in.

Integrations

Use the grammar checker where you write

You should not have to copy your writing into another tab to check it. The grammar checker works inside the tools you already use.

Chrome extension

Get grammar suggestions on Gmail, LinkedIn, Twitter, Slack, Notion, and any other site where you write.

Install the Chrome extension

Google Docs add-on

Check your writing inline inside any doc. Suggestions appear right next to your text. No copy-pasting.

Add to Google Docs
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Microsoft Word add-in

Get grammar suggestions in Word documents. Works on desktop and Word for the Web.

Add to Word
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WordPress plugin

Catch grammar issues in posts and pages before you hit publish. Useful for blogs and content sites.

Get the WordPress plugin

API for teams

Run grammar checks programmatically. Useful for content QA tools, LMS integrations, and editorial workflows.

Read the API docs
Specialized tools

Free grammar tools

The grammar checker is the all-in-one option, but sometimes you only need one specific thing. These dedicated tools focus on a single check.

FAQ

Frequently asked questions

Yes. The free grammar checker handles grammar, spelling, punctuation, capitalization, and sentence structure with no account and no card on file. Premium adds tone analysis, clarity suggestions, conciseness rewrites, and longer document scans.
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