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Essay Checker

Fix grammar, spelling & punctuation with clear explanations

Also available as a Chrome extension — 5 tools in your right-click menu. Install Free →

Essay analysis Free, no signup
Input
0 words
Corrected

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Paste text and click Check Essay

Free to try · No signup required

AI
Powered analysis
20K
Chars per check
Free
No signup
Why
Explanations
Process

How It Works

1

Paste your text

Copy and paste any text you want to check — essays, emails, reports, blog posts, or messages. Works with any English text.

2

AI analysis

Our AI scans for grammar, spelling, punctuation issues. Each issue gets a clear explanation of why it was changed.

3

Review & apply

Get corrected text ready to copy, plus detailed issue list with original, correction, and explanation for each.

Use Cases

Use Cases

Students

Students & academics

Polish essays, research papers, and assignments before submission. Catch embarrassing typos and grammatical errors spell checkers miss.

Business

Professional emails

Ensure your business communications are error-free. A single grammar mistake in a client email can undermine your credibility.

Creators

Content creators

Check blog posts, social media copy, and marketing content before publishing. Clean writing builds trust with your audience.

Learners

Non-native speakers

Learn from detailed explanations of each correction. Understand why a change was made to improve your English writing over time.

Features

Students also use

FREE
Free

3/day, 300 words, 5 modes

STARTER
$9.99/mo

30K words, 9 modes, batch

PRO
$19.99/mo

100K words, API access, priority

FAQ

FAQ

What does the Essay Checker check for?
Grammar, spelling, punctuation, sentence structure, and common essay-writing errors like tense inconsistency and subject-verb disagreement. Each issue comes with an explanation.
Is this different from the Grammar Checker?
Same AI engine, optimized for essays. The <a href="/grammar-checker">Grammar Checker</a> works with any text. This page is tailored for students checking essays, with essay-specific use cases and tips.
Can I paste my entire essay?
Yes. Up to 20,000 characters per check. For very long essays, check in sections (introduction, body paragraphs, conclusion) for better feedback.
Does it check essay structure?
It focuses on grammar and language errors, not essay structure (thesis, argument flow, paragraph organization). For structure help, try our <a href="/ai-essay-writer">AI Essay Writer</a> for outlines.
Will it make my essay sound better?
It fixes errors but does not restyle. For tone and style improvement, use the <a href="/ai-rewriter">AI Rewriter</a> after checking grammar. For making AI-generated text more natural, use the <a href="/ai-humanizer">Humanizer</a>.
Is it safe for academic use?
Yes — it only corrects your text, not rewrite it. Each correction is shown with an explanation so you learn from errors. Always review and understand corrections before submitting.
Does it catch plagiarism?
No — it checks grammar only. For plagiarism detection, use our <a href="/plagiarism-checker">Plagiarism Checker</a>.
Is my essay stored?
No. Text is processed in real-time and discarded immediately. Your essay is never stored or shared.
Does it work with non-native English?
Yes. Especially useful for ESL students — each correction includes an explanation so you learn the rule, not just the fix.
What types of essays can I check?
Any type: argumentative, narrative, expository, persuasive, research papers, lab reports, personal statements.
Is it free?
Yes. 3 free checks per day, no signup. Upgrade for unlimited daily checks.
Can I pay with cryptocurrency?
Yes. USDT, USDC, BTC, ETH accepted. Plans from $9.99/month.
Does it work on mobile?
Yes. Paste your essay on any device.
Is there a Chrome extension?
Yes. Our Chrome extension includes Grammar Checker, AI Humanizer, AI Detector, Translator, and Word Counter.
How does this compare to Grammarly?
Both fix grammar. Coda One is free with no signup, accepts crypto, and includes 100+ other tools. Grammarly requires an account and charges $12/month for premium.

Coda One's Essay Checker analyzes your text for grammar, spelling, and punctuation errors using advanced AI models. Get a corrected version of your text along with detailed explanations for each issue found. Works with essays, emails, blog posts, and any English text. Free to try, no signup required.

Features

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