Is your current plagiarism 检查器 too costly?
Does it miss the newest types of AI-generated content?
That is a real problem today for students, 教师, and writers.
You need a reliable tool to keep your work honest.
The good news is that there are many out there.
We will show you the 9 best 复制泄漏 Alternatives for 2025.
This list includes both free and paid checkers.
You will find the perfect plagiarism checker that meets all your needs.
What is the Best Copyleaks Alternative?
You need a new tool that is both strong at detecting plagiarism and at spotting AI-generated writing.
Finding the right checker is key to keeping your work honest.
Don’t worry about wasting time and money.
We have checked all the top options for you.
The list below breaks down the nine best programs you can start using today.
1. GPTZero (⭐4.8)
This is a top tool for checking if Es ist für eine persönliche Wissensdatenbank konzipiert. Ihre Notizen werden als einfache is AI-written.
It is super accurate. Teachers and writers really trust it.
It shows you the text’s originality score.
主要优点
- 准确性： Offers 99% accuracy for AI detection.
- 误报： Claims a very low false positive rate (less than 1%).
- 保修单： Comes with a 30-day money-back guarantee.
- 特征： Focuses on perplexity and burstiness, user-friendly interface, supports multiple file uploads, offers batch processing for many documents, integrates with learning platforms.
定价
Il dispose même d'un convertisseur d'image IA qui essaie de rendre vos images plus grandes plus belles. 每年计费。
- 自由的： 每月 0 美元。
- Remaker AI contre Picsart : 每月 8.33 美元。
- 优质的： 每月 12.99 美元。
- 专业的: $24.99/month.
Você pode ter mais de um espaço de trabalho.
缺点
2. Originality AI (⭐4.5)
Do you need to check for both AI writing and copied text?
This tool does both very well. It is popular with bloggers and businesses.
It gives you a fast and clear report.
我们的观点
Ready to ensure your content is 100% human-generated? Originality AI boasts a 94% accuracy rate in detecting AI-written text. Don’t risk your reputation – Go for Originality AI today!
主要优点
- 准确性： Boasts 98-100% accuracy.
- 误报： Has a very low false positive rate, around 2%.
- 保修单： Provides a 7-day satisfaction guarantee.
- 特征： Detects AI-generated and AI-edited content, includes a powerful plagiarism checker, scans entire websites, supports detection in multiple languages, offers an API for custom integrations.
定价
- 优点： 每月 12.95 美元。
- 即用即付： $30 (One time on demand pricing).
- Remaker AI contre Gemini : $136.58/month.
Você pode ter mais de um espaço de trabalho.
缺点
3. QuillBot (⭐4.0)
Most people know QuillBot for paraphrasing.
But it also has a good plagiarism checker.
It is simple to use and finds standard copied text easily.
It is a solid choice for students.
我们的观点
准备好改变你的写作风格了吗？超过 5000 万用户已经体验过 Quillbot 强大的释义功能。立即探索！
主要优点
- 准确性： 通用AI检测准确率达到90%左右。
- 误报： 以合理的误报率而闻名，通常低于 5%。
- 保修单： 为高级计划提供 3 天退款保证。
- 特征： 区分 AI 生成的文本和 AI 辅助的人类文本，集成释义和语法工具，为较短的文本提供免费扫描，提供详细的分析报告，界面易于使用。
定价
Il dispose même d'un convertisseur d'image IA qui essaie de rendre vos images plus grandes plus belles. 每年计费。
- 自由的： 每月 0 美元。
- 优质的： 每月 4.17 美元。
- 团队计划： 根据您的需求定制价格。
Você pode ter mais de um espaço de trabalho.
缺点
4. Winston (⭐3.8)
Winston is a great AI detection tool.
It focuses on finding AI content with high accuracy.
It also has an AI image 偵測器. It’s a nice all-in-one check for content creators.
主要优点
- 准确性： Claims an impressive 99.98% accuracy.
- 误报： Reports a near-zero false positive rate.
- 保修单： Includes a 14-day refund policy.
- 特征： Detects AI content from various models like GPT-4o and Gemini, includes an optical character recognition (OCR) feature, offers AI image detection, provides batch processing for bulk checks, has a clean, intuitive design.
定价
- 自由的： 每月 0 美元。
- Remaker AI contre Picsart : 每月 10 美元。
- 先进的: $16/month.
- Elite: $26/month.
Você pode ter mais de um espaço de trabalho.
缺点
5. Phrasly AI (⭐3.5)
This tool is made to “humanize” AI-written text.
It also has an AI detector built right in.
它可以帮助你 制作 sure your content sounds natural. You can use it to avoid AI flags.
主要优点
- 准确性： Provides around 88-90% accuracy for AI detection.
- 误报： Reports a moderate false positive rate, around 6%.
- 保修单： Not explicitly stated; service is subscription-based.
- 特征： Specializes in making AI content undetectable, offers an AI rewriter, provides readability scores, quick and easy to use, aims to help content rank better.
定价
- 自由的： 每月 0 美元。
- 无限： 每月 12.99 美元。
Você pode ter mais de um espaço de trabalho.
缺点
6. Quetext (⭐3.3)
Quetext uses something called DeepSearch™ Technology.
This helps it find more complex matches. It goes beyond simple word checks.
The color-coded reports are easy to read.
主要优点
- 准确性： Delivers approximately 92% accuracy in AI detection.
- 误报： Maintains a low false positive rate, around 4%.
- 保修单： No explicit warranty; focuses on subscription service.
- 特征： Uses “DeepSearch” technology for thorough analysis, highlights both AI and plagiarized content, offers a clear, color-coded report, provides a citation assistant, good for academic and journalistic integrity.
定价
所有计划都将 每年计费。
- 自由的： 每月 0 美元。
- 企业：每月 11.99 美元。
- Remaker AI contre Picsart : $13.99/month.
Você pode ter mais de um espaço de trabalho.
缺点
7. Undetectable (⭐3.2)
The name says it all, right?
This tool tries to make AI text pass human checks.
It is primarily a content rewriter.
It is a good choice if your main goal is to bypass detectors.
我们的观点
Give Undetectable AI a try! It bypasses 98% of AI content detectors, ensuring your AI-generated text goes undetected. Explore it today!
主要优点
- 准确性： Offers up to 90% accuracy in detecting AI.
- 误报： Claims a low false positive rate, about 5%.
- 保修单： No specific warranty; subscription-based.
- 特征： Focuses on humanizing AI-generated content, checks against various AI detectors, aims to bypass common AI filters, useful for SEO and content marketing, simple and straightforward interface.
定价
- 每年一次 每月 5 美元。
- 每月： $19.00/month.
- For É onde todos os seus projetos e tarefas são organizados.：根据您的需求定制价格。
Você pode ter mais de um espaço de trabalho.
缺点
8. Smodin (⭐3.0)
Smodin is a large writing platform.
It has an AI 作家 and a plagiarism checker.
It checks your text against many sources.
It’s a multi-tool for many writing needs.
主要优点
- 准确性： Provides around 95% accuracy for AI content.
- 误报： Has a low false positive rate, typically 3-4%.
- 保修单： No specific warranty mentioned; relies on subscription terms.
- 特征： Combines AI detection with plagiarism checking, supports multiple languages, offers a content rewriter tool, includes a citation generator, good for academic and research papers.
定价
Il dispose même d'un convertisseur d'image IA qui essaie de rendre vos images plus grandes plus belles. 每年计费。
- 写作： 每月 9 美元。
- Reviewing: 每月 15 美元。
- 最终的: $18/month.
Você pode ter mais de um espaço de trabalho.
缺点
9. Grammarly (⭐2.8)
Grammarly is famous for fixing grammar.
The Premium version also has a plagiarism check.
It is very easy to use since you might already use it.
It is great for basic checks.
我们的观点
想要专家级写作？Grammarly Premium 的抄袭检查功能扫描超过 160 亿个网页，确保原创性。立即探索！
主要优点
- 准确性： 提供强大的 AI 检测，通常在 90-92% 左右。
- 误报： 保持较低的误报率，一般低于5％。
- 保修单： 适用标准订阅条款，无特定保证。
- 特征： 将 AI 检测与语法和拼写检查相结合，提供抄袭检测，提供实时反馈，可作为浏览器扩展使用，有助于提高整体写作质量。
定价
Il dispose même d'un convertisseur d'image IA qui essaie de rendre vos images plus grandes plus belles. 每年计费。
- 自由的： 每月 0 美元。
- 优点： 每月 12 美元
- Remaker AI contre Gemini : 根据您的需求定制价格。
Você pode ter mais de um espaço de trabalho.
缺点
買家指南
During our research to find the go-to solution for Copyleaks Alternatives, we determined the best choices based on a few critical factors.
We did not just paste text into plagiarism tools and call it a day.
Instead, we focused on what truly matters to professional writers, content marketers, and educational institutions in 2025.
This involved deep diving into the capabilities of each plagiarism detection software.
It ensures we are recommending the best fit for ensuring content originality and content authenticity.
在研究寻找最佳产品时，我们根据以下因素进行确定：
- AI Content Detection Accuracy: This was the most important factor. How well did the software detect AI-generated text and AI-written content versus human-written content? We checked for false positives—when original human-written text is wrongly flagged as AI—and looked at the ability to detect content from the latest AI models. We gave extra points for high AI score reliability.
- Plagiarism Detection Capability: We looked at the core function: How well did the tool find plagiarism? We checked whether it could identify instances of plagiarized content and self-plagiarism, and compare them against multiple documents or just the web. We also checked the clarity of the plagiarism score and how easy it was to get a detailed analysis or a PDF report.
- 定价和可访问性: We analyzed the subscription plan and paid plans, focusing on any credit-based system. Did they offer a limited free version or free access? Was there a reliable free version or free plan for individual users? We prioritized accessible tools for new users and noted how limited free access was.
- Target Audience and Specific Features: Was the tool specifically designed for academic integrity in academic papers or for professional settings, like content verification for online content? We looked for features like LMS integration, the ability to upload documents, and how easy the simple interface made it to run drafts. We also checked if they offered a solution like Copyleaks, but better.
- Versatility and Performance: Could the software check multiple languages or only English? We looked for support for other languages and different languages. How fast did it process large volumes of text? Did it compare well to other tools and popular tools? Finally, we noted the frequency of false alarms and the overall user experience.
总结
We have reviewed the nine best alternatives to Copyleaks.
The main goal was to help you find a tool that excels at plagiarism detection and new 人工智能工具.
We looked at all the key factors like accuracy and cost.
Remember, top choices like GPTZero offer a great free tools experience.
Others, like Originality AI, focus on a powerful premium plan for professionals.
Finding the right software is about choosing features that matter most to you.
This list of great tools lets users check for both copying and the latest Copyleaks AI detector challenges.
Pick the one that fits your budget and needs today!
常见问题
What are the main differences between Plagiarism and AI detection?
Plagiarism checks for similar text against existing sources, ensuring originality. AI detection analyzes writing patterns to predict if a machine wrote the content. Both are needed to ensure content originality in today’s world.
Do I need a single platform for both Plagiarism and AI checking?
Yes, for efficiency, finding one platform that handles both is best. This saves you time and money, giving you both a plagiarism score and an AI score in one go. Many users prefer this simple, consolidated approach.
What is the most critical feature for professional use?
For professional use, the ability to generate detailed reports is key. These reports break down exactly where copied or AI-generated text was found, allowing users to make precise edits quickly and maintain high standards.
Can AI-written content pass a traditional plagiarism checker?
Often, yes. AI generates new text sequences that do not match existing sources, so they contain no similar text. That is why a dedicated AI detector is necessary alongside traditional plagiarism tools to verify authenticity.
Why should I choose a premium plan alternative over the free tools?
Premium plan alternatives often offer unlimited scans, better support, and higher accuracy for professional use. While free tools are great for basic checks, paid options give you the high-level security and detailed reports needed for commercial work.
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