Best 72 ai plagiarism checker Tools in 2025

Robust, real-time communication assistance
Generative AI for writing, rewriting, and getting ideas
Writing enhancements for grammar, tone, clarity, and team consistency
Writing assistance on desktop apps, websites, mobile apps, emails, and social media

premium Grammarly Premium offers advanced writing suggestions and checks for more in-depth writing improvement.
business Grammarly Business provides tailored solutions for teams and businesses, including centralized billing, team management, and enhanced security.
education Grammarly for Education offers writing improvement tools and resources for students and institutions.

To use Grammarly, users can download the app or browser extension on their Windows or Mac devices. Additionally, Grammarly integrates with popular apps and sites like Word, Gmail, Google Docs, LinkedIn, and more. Once installed, Grammarly provides suggestions and corrections in real-time as users write across different platforms. Users can rely on Grammarly's AI-powered writing tools to generate cover letters, emails, and other documents, maintaining their unique voice and style. With Grammarly's comprehensive writing assistance, users can write confidently and effectively.

AI-based content detection
Verification of human or AI-generated content
Plagiarism detection
API integration for seamless implementation
LMS integration for easy usage within learning platforms
Gen AI Governance for preventing data leaks
AI Grader for efficient assessment of standardized tests

To use Copyleaks, simply create an account and log in. Depending on your needs, you can choose between different products such as AI Content Detector, Plagiarism Detector, Gen AI Governance, and AI Grader. These products provide features like detecting AI-generated content, verifying originality, preventing data leaks, and assessing standardized tests. Copyleaks offers options for API integration, LMS integration, and a Chrome extension for easy access and integration into existing workflows.

Smodin offers several core features to aid the writing process. These include: 1. Text Rewriter: Allows users to rewrite their text to improve clarity and originality. 2. Plagiarism Checker: Helps identify any instances of plagiarism in written content. 3. AI Writer: Generates high-quality, structured text complete with references. 4. Citation Machine: Automatically generates references in MLA and APA formats. 5. Multi-lingual Translator: Provides translation services for multiple languages to facilitate writing in different languages.

professional_plan $X per month

To use Smodin, sign up with a Google account or email address. Once logged in, users can access various tools such as the text rewriter, plagiarism checker, AI writer, citation machine, and translator. Simply input your text or document into the desired tool and follow the prompts to obtain the desired results. Smodin also offers an AI writing companion called CHATin, which allows users to generate content by asking questions and combines the power of Smodin, Google, and ChatGPT.

Originality.AI offers several core features that make it a powerful AI content checker and plagiarism detection tool: 1. Accurate AI Detection: Originality.AI has the most accurate AI content detection, with 99% accuracy for GPT-4 and 83% accuracy for ChatGPT. It can detect AI-generated content and distinguish it from human-written content. 2. Plagiarism Checking: The tool includes a best-in-class plagiarism checking feature, allowing you to identify if content has been copied from other sources. It can even detect paraphrase plagiarism when paraphrasing tools are used. 3. Readability Score: Originality.AI provides a readability score for your content, helping you understand its readability level. It uses reliable readability tests and target ranges that align with Google's requirements for content ranking. 4. Team Management: You can add and remove team members, manage their access levels, and track their activity. This feature is particularly useful for content marketing agencies and publishers. 5. Shareable Reports: You can easily share the results of AI detection, plagiarism checking, and readability scoring by generating shareable reports. This allows you to demonstrate the originality, quality, and compliance of your content. 6. AI Content Detector API: Originality.AI offers a well-documented API that allows you to integrate its AI content detection capabilities into your existing tools or workflow. These core features make Originality.AI a comprehensive content creation quality control tool, helping you protect your reputation and improve your content's originality and readability.

Using Originality.AI is simple and straightforward. Here's how you can use it: 1. Sign up on the Originality.AI website and create an account. 2. Choose a pricing plan that suits your needs. 3. Access the user dashboard and start using the AI content detection and plagiarism checking features. 4. To check content, either paste the text directly, upload a file, or provide a URL. 5. Originality.AI will analyze the content using its advanced AI algorithms and provide you with accurate results. 6. Check the detected AI content, plagiarism score, and readability score. 7. Use the Share Scan link to share the results or generate a detailed report. 8. Explore additional features like team management, API integration, and bulk site scan to enhance your content quality control process. With Originality.AI, you can ensure the originality and quality of your content with ease.

Bypass AI detection
Create undetectable AI content
Plagiarism-free rewrites
Completely error-free
High-ranking content
Authentic and creative content
Bypass spam filters

BypassGPT can create 100% undetectable AI text that mimics a human touch in three easy steps. Copy your original, AI-generated content into our portal. Click the button to start the BypassGPT process. Moments later, receive your rewritten text and use it however you like!

AI content detection
Plagiarism checker
Labeling feature
OCR technology

Free $0/month Up to 2,000 words scan
Essential $12/month Up to 80,000 words scan
Advanced $19/month Up to 200,000 words scan

1. Create your account for free to begin checking for AI content. 2. Enter the text you want to check for AI. 3. Get your results in seconds.

DeepSearch™ technology for accurate plagiarism detection
Contextual analysis and word placement
Lightspeed recognition for fast results
Privacy protection
Comprehensive plagiarism score backed by billions of internet sources

Free Plagiarism checks on 500 words (1 page). ColorGrade™ feedback. Contextual analysis. Fuzzy matching. Conditional scoring
Premium $8.25 per month 100,000 words (200 pages) for plagiarism checks. DeepSearch™ Extended. Citation Assistant. Downloadable originality report. Custom URL exclusion. Interactive snippet text. Premium support

Quetext's plagiarism checker analyzes your text to identify plagiarism, resolve other writing issues, and build citations with ease.

AI content detection for ChatGPT and other AI-generated content
Percentage score indicating the likelihood of AI-generated content
Word counting functionality
Easy-to-use interface
Free to use

To use ContentDetector.AI, simply copy and paste the AI-generated or ChatGPT content into the text field on the website. Click on the 'analyze' button, and the tool will deliver an estimated percentage score indicating the likelihood that the content was generated by AI. The tool also counts the number of words in the text.

Guided Essays
Audio Summaries
Plagiarism Free
In-Text Citations
Related Videos
Interest Based Learning

Free Plan $0 /month 1,000 words, up to 1,000 word essays, video learning materials, in-text citations, key point highlights, authentic sources, start for free
High School $11 /month 15,000 words per month, up to 15,000 word essays, bypass all AI detectors, video learning materials, in-text citations, key point highlights, authentic sources, plagiarism checker
University $16 /month 90,000 words per month, up to 60,000 word essays, bypass all AI detectors, video learning materials, in-text citations, key point highlights, authentic sources, plagiarism checker, priority support
Academic $24 /month 250,000 words per month, up to 60,000 word essays, bypass all AI detectors, video learning materials, in-text citations, key point highlights, authentic sources, plagiarism checker, priority support

Sign up for an account on Samwell.ai. Enter your essay title and provide any instructions. Use the AI-powered features to write, cite, and learn. Review and edit your essay as needed. Download or share your final essay.

Instantly convert AI text to human text
Bypass AI detection with authentic human-like content
Supports over 50+ native languages
Retains original meaning and quality

Copy the AI-written content and paste it into our intuitive AI to human text converter. Click on the 'Humanize' button. We will rewrite the AI content and make it sound more human-like. Feel free to use the 100% humanized text however you want with zero risk of AI detection.