In May 2026, there are 61 AI Plagiarism Checker tools listed. Grammarly ranks #1 with 58.3M monthly visits. ACE ESSAY is the fastest growing tool with 102.3% growth.
In May 2026, there are 61 AI Plagiarism Checker tools listed. Grammarly ranks #1 with 58.3M monthly visits. ACE ESSAY is the fastest growing tool with 102.3% growth.
Rank | Tool | Monthly Visits | Growth | Growth Rate | Category | Description | |
|---|---|---|---|---|---|---|---|
🥇 | Grammarly grammarly.com | 58.3M | -5.3M | -8.3% | AI Grammar Checker | Grammarly is a powerful AI writing assistant that helps you write better, faster, and more confidently. Whether for work, school, or personal projects, Grammarly ensures your writing is clear, professional, and mistake-free. | |
🥈 |  Quillbot quillbot.com | 48.1M | -1.5M | -3.1% | AI Writing Assistants | QuillBot is an AI-powered writing assistant that helps you write better, faster, and with confidence. Perfect for students, professionals, and content creators. | |
🥉 |  Zero GPT zerogpt.com | 28.2M | -885.3K | -3.0% | AI Content Detector | ZeroGPT is a versatile tool for detecting AI content, checking plagiarism, summarizing text, and more. It’s free, accurate, and easy to use. | |
4 |  GPTZero gptzero.me | 19.1M | +565.3K | 3.0% | AI Detection | GPTZero is the most reliable AI detection tool for identifying AI-generated text, trusted by educators, writers, and professionals worldwide. | |
5 |  Turnitin turnitin.com | 18.9M | +2.2M | 13.3% | AI Plagiarism Checker | Turnitin ensures academic integrity by detecting plagiarism and AI writing, helping students and educators maintain originality. | |
6 |  Scribbr scribbr.com | 9.0M | -871.3K | -8.8% | AI Plagiarism Checker | Scribbr is your all-in-one tool for academic success, offering proofreading, plagiarism checks, citation generation, and AI detection to help you submit flawless work. | |
7 |  Stealthwriter stealthwriter.ai | 4.2M | +19.9K | 0.5% | AI Text Humanizer | StealthWriter transforms AI-generated content into human-like, undetectable text, ensuring originality and quality while bypassing AI detectors. | |
8 |  Copyleaks copyleaks.com | 3.6M | +44.3K | 1.2% | AI Plagiarism Checker | Copyleaks is your go-to platform for plagiarism detection, AI content verification, and writing assistance, ensuring originality and compliance in every step. | |
9 |  Originality.AI originality.ai | 2.5M | -123.6K | -4.6% | AI Detection | Originality.ai is the ultimate tool for content creators, offering AI detection, plagiarism checking, and fact verification to ensure your work is original and trustworthy. | |
10 |  Walter Writes AI walterwrites.ai | 2.0M | +347.1K | 21.0% | AI Text Humanizer | Walter Writes AI helps you create undetectable, human-like content fast. Perfect for students, writers, and professionals. | |
11 |  Paperpal paperpal.com | 1.4M | +65.1K | 5.0% | AI Writing Assistants | Paperpal is a powerful AI academic writing tool that helps you write, edit, and perfect your manuscripts with ease. From grammar checks to plagiarism detection, it’s your all-in-one solution for academic writing. | |
12 |  Prepostseo prepostseo.com | 1.2M | +86.5K | 7.6% | AI Plagiarism Checker | Prepostseo packs 150+ free tools for writing, SEO, and coding—ideal for quick fixes or deep analysis. No fluff, just results. | |
13 |  SideKicker AI sidekicker.ai | 902.7K | -256.9K | -22.1% | AI Text Humanizer | Sidekicker transforms AI-generated text into natural, human-sounding writing, enhancing clarity, trust, and engagement in your content. | |
14 |  Winston gowinston.ai | 859.7K | +31.9K | 3.9% | AI Detector | Winston AI is the leading AI detection tool with unmatched accuracy, plagiarism checking, and multi-language support. It’s essential for maintaining content integrity in education, SEO, and writing. | |
15 |  ACE ESSAY aceessay.ai | 799.9K | +404.5K | 102.3% | AI Text Humanizer | Ace Essay helps students and professionals create original, natural-sounding essays, check for plagiarism, and pass AI detection—all with privacy and ease. | |
16 |  Researcher.Life researcher.life | 795.7K | -61.2K | -7.2% | AI Research Tool | Researcher.Life combines AI tools + expert help to streamline research, writing, and publishing—trusted by 5M+ researchers worldwide. | |
17 |  Grubby AI grubby.ai | 733.2K | +164.8K | 29.0% | AI Text Humanizer | GrubbyAI is the ultimate AI detection remover, helping students and content creators humanize AI-generated text, bypass AI detectors, and pass plagiarism checks with ease. | |
18 |  Paraphraser.io paraphraser.io | 710.3K | +26.0K | 3.8% | AI Paraphraser | Paraphraser.io is a versatile, AI-driven tool that helps you rewrite text quickly and accurately, making it ideal for students, professionals, and writers. | |
19 |  Smodin smodin.io | 688.3K | -232.6K | -25.3% | AI Writing Assistants | Smodin is the ultimate AI writing assistant for students, teachers, and professionals. It offers tools for AI detection, plagiarism checking, homework help, and more, making writing faster and easier. | |
20 |  Packback packback.co | 651.8K | -13.4K | -2.0% | AI Education Tools | Packback combines AI and pedagogy to make learning more engaging, ethical, and effective for students and teachers alike. |
Tools are assigned to categories based on their primary functionality and use case. Many tools appear in multiple categories if they serve multiple purposes.
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