Last updated 07-24-2026
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AI Essay Checker
AI Essay Checker (EssayCheck) is an online writing tool that scans essays for AI-generated text, grammar errors, and plagiarism in one editor. Paste or type your essay, then run AI detection, grammar checking, or plagiarism scanning separately or together. The AI detector estimates how much of your text may have been written by tools like ChatGPT, Gemini, Claude, or Copilot.
The grammar checker flags spelling mistakes and grammatical issues with real-time suggestions. The plagiarism scanner identifies duplicated or AI-copied content so you can edit before submitting. EssayCheck also includes an Essay Grader for automated scoring and feedback.
The platform supports English plus French, German, Spanish, Italian, Portuguese, Dutch, and Russian. Free accounts include monthly word limits on AI detection and plagiarism checks, with paid Basic and Pro plans for higher volumes.
AI content detector that estimates the probability text was generated by ChatGPT, Gemini, Claude, or Copilot
Built-in grammar and spelling checker with real-time suggestions in the editor
Plagiarism scanner for detecting duplicated or AI-copied content
Essay Grader for automated scoring and writing feedback
Free tier with monthly word limits plus Basic and Pro paid plans
Combines AI detection, grammar checking, plagiarism scanning, and essay grading in one editor.
Free tier covers basic monthly usage without a credit card.
Supports eight languages for international students and educators.
Free plan word limits on AI detection and plagiarism may be too low for longer essays.
Site promotes separate humanizer tools rather than built-in AI rewriting.
What does AI Essay Checker detect?
AI Essay Checker detects AI-generated text, grammar and spelling errors, and plagiarism. You can run each check separately or use all three from the same editor.
Is AI Essay Checker free?
Yes. The Free plan includes 1,000 AI detector words, unlimited grammar checking, 500 plagiarism words, and 1,000 essay grader words per month. Paid Basic ($17/month) and Pro ($29/month) plans offer higher word limits.
What languages does EssayCheck support?
EssayCheck supports English, French, German, Spanish, Italian, Portuguese, Dutch, and Russian through its language selector.
Does EssayCheck offer refunds?
Yes. All paid plans include a 3-day money-back guarantee. You can cancel anytime from account settings with no cancellation fees.
What other tools does EssayCheck offer?
EssayCheck also links to related tools including an Essay Grader, Humanize AI (humanizerpro.ai), and AI Rewriter (rewriterpro.ai) from the main navigation.