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Free Grammar Checker — Fix Spelling, Punctuation & Style

Paste your text or upload a document and get instant corrections in 50+ languages. Every fix comes with a plain-English explanation, so your writing improves with each check.

50+ languagesNo sign-upInstant resultsExplains every fix
GGrammar Report
92 / 100

The students has submitted their papers on time. Each essay were reviewed by the committee.

2 Grammar1 Spelling1 Style
has submitted→have submitted
Accept
50+ Languages
G
0 / 1,000
What it checks

What our grammar checker fixes

Grammar accuracy score
01Grammar

Subject–verb, tense, articles & more

Catches agreement errors, wrong tense shifts, misused articles, and preposition mistakes — each with a plain-English explanation of the rule so you won't repeat it.

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Spelling verdict
02Spelling

Typos and commonly confused words

Flags every misspelling and their/there, affect/effect mix-ups with the correct word every time — no guessing, no second-checking.

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Paste text to check
03Punctuation

Commas, apostrophes & semicolons

Identifies punctuation errors from missing Oxford commas to misplaced apostrophes — so your text reads exactly as intended.

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Accuracy benchmark
04Clarity

Cut the clutter, keep the point

Rewrites wordy and tangled sentences into clean prose. Your ideas, expressed with more precision and far less noise.

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AI2Human writing features
05Style & Tone

Write for your audience

Flags phrasing that's too informal, vague, or repetitive for your purpose — so every email, essay, or report lands exactly the way you intend.

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Essay checker features
06Essay Checker

A full writing-quality score

Goes beyond spell-check: scores grammar, fluency, clarity, and engagement in a single pass. Built for students and academics who need more than a green underline.

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Why choose this grammar checker

Corrections that teach,
not just patch.

Every fix is explained.

See the rule behind each suggestion — not just the correction. Your writing improves over time, not just this draft.

50+ languages.

Check English, Spanish, French, German, Arabic, Hindi, and dozens more in one free grammar checker.

No account, no cost.

Start checking immediately. No email wall, no trial countdown, no login required.

Built for non-native writers.

Explanations are jargon-free and written for learners — especially useful for ESL grammar check users.

Document upload.

Paste text or drop in a PDF or Word file and review the whole piece in one pass.

Private by default.

Your text is processed securely and not stored after your session ends.

Check my writing
Grammar checker showing corrections with explanations
How to use it

Three steps to cleaner grammar

Paste your text
01Step one

Paste your text or upload a document

Drop in your text, or upload a .docx or PDF. The grammar checker starts scanning instantly — no account, no waiting.

Review grammar suggestions
02Step two

Review highlighted suggestions

Each issue is underlined: red for grammar, blue for spelling, amber for style. Read the rule behind the fix — not just the correction.

Get grammar results
03Step three

Accept fixes and copy your polished text

Accept or dismiss each suggestion with one click. Copy your improved writing when you're done.

Originality & AI detection

Keep your writing original

Check your work for potential plagiarism and AI-generated text, so you can be confident that what you submit is entirely your own.

  • Sentence-level matches against billions of web pages
  • AI-writing detection with a clear originality score
  • One-click citations for every source we find
Check originality
GEconomics PaperPro

Economists disagree about whether or not small businesses are the primary driver of job growth, according to the report.

17% matches 3 external sources
No AI-generated text detected
The Role of Small Businesses
Click to copy reference

The Role of Small Businesses — AI2Human. ai2human.app/sources

Who uses it

For anyone who writes.

Students using grammar checker

Students

Polish essays and assignments before submission. Understand every correction — not just accept it blindly.

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Educators

Educators

Save time on routine corrections. Spot patterns in student writing and teach the rules that matter most.

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Professional writers

Professionals

Turn rough drafts into polished emails, reports, and proposals — faster and with more confidence.

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Non-native English writers using grammar checker

Non-native Writers

Build real grammar fluency. Explanations written in plain English for every language background.

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FAQ

Questions,
answered.

Yes. You can check grammar, spelling, and punctuation without creating an account. The free tier lets you check up to 1,000 characters per request — upgrade to Basic, Pro, or Ultimate for longer texts and advanced style suggestions.

AI-powered tools for your writing needs

One platform. Five powerful tools. Everything you need to humanize, detect, and perfect your writing.

AI Humanizer

AI Humanizer

Transform AI-generated text into undetectable human writing that bypasses every major detector.

99% on Turnitin

Pass Rate

5M+ and growing

Words Processed

40+ supported

Languages

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Free · No signup required

Free grammar checker

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writing for free

Paste your text and watch the grammar checker, spell checker, and AI corrector get to work — in seconds.