AI Detector & Plagiarism Checker

Instantly Verify
your Content Originality

Analyze and verify any text for originality with 99.7% accuracy. Detect AI-generated writing (ChatGPT, Claude, Gemini) and uncover plagiarism across billions of sources. Fast, private, and trusted by professionals worldwide.

How It Works
— No Credit Card Required
99.7% Accurate
Secure & Private
Origin Checker
Origin Checker LogoOrigin Checker
Text Analysis
Paste your text here to analyze
AI Detection
12% probability
Plagiarism Check
Original content
Source Verification
Verified sources: 3
AI Detection
Plagiarism Check
Source Verification
5M+
Texts Analyzed
99.7%
Accuracy
100%
Secure & Private
Real-Time
Results
All-in-One Solution

All-in-One AI Content Detection and Plagiarism Checking

Our comprehensive platform ensures your content is authentic, original, and trustworthy.

AI Content Detection

Identify AI-written content from models like ChatGPT, Gemini, Claude, and Bard with industry-leading accuracy.

Plagiarism Detection

Scan against billions of web pages, academic papers, and journals to catch copied content.

Source Verification

Instantly retrieve matching sources for any plagiarized content.

Batch Document Analysis

Upload and check multiple documents simultaneously – perfect for teams, agencies, and schools.

Real-time Results

Get your analysis in seconds, no matter the document length.

Privacy Focused

Your content stays private — encrypted, secure, and never stored or shared.

And Many More

Our feature set is constantly expanding to meet the evolving needs of content creators, educators, and businesses.

How OriginChecker Works

Verify content authenticity in three simple steps

Paste or Upload Your Text

Upload documents or paste content directly.

Analyze Content

Our AI instantly detects originality, plagiarism, and AI content probability.

Review Detailed Results

View plagiarism matches, AI scores, and source verification reports.

Why Choose Origin Checker Over Other Tools

FeatureOrigin CheckerTurnitinGrammarly
AI Content DetectionLimited
Plagiarism Detection
Real-Time Results
Privacy First
Batch Processing
No credit card required

What our users say

Trusted by students, professionals, and organizations worldwide

Jason P.
Jason P.- Final-Year Student, University of Sydney
As a student, I love how Origin Checker helps me stay confident that my work is original
The reports are detailed and fast.

Simple, transparent pricing

Choose the perfect plan for your content verification needs

Free

Basic access for individuals to try our tools

$0/month
  • 5 AI Detection/month
  • 5 Plagiarism Checks/month
  • 3 AI Article Generation/month
  • 500 Word/AI article
  • Standard analysis speed
  • Standard Support
MOST POPULAR

Pro

Perfect for students and professionals who need regular content verification

$9.99/month

Billed annually

  • 50 AI Detection/month
  • 30 Plagiarism Checks/month
  • 15 AI Article generation/month
  • 1000 words/ AI article
  • Enhanced Plagiarism Checks
  • PDF & Word Document analysis
  • Priority analysis speed
  • Priority Email Support

Business

For organisations, agencies or educators with high-volume needs

$19.99/month

Billed annually

  • Unlimited AI Detections
  • 100 Plagiarism Checks/month
  • 50 AI Article Generations/month
  • 2000 words/AI article generations
  • Advanced Plagiarism Checks
  • All file types supported
  • Fastest analysis priority
  • Team management
  • $5/m per additional members
  • Dedicated Support

Have a promo code? You can apply it during checkout.

All plans include secure processing, GDPR compliance, and confidential handling of your data. Need a custom plan for your enterprise? Contact our sales team.

Trusted by thousands of users

Ready to verify your content's authenticity?

Start scanning with our AI Detector and Plagiarism Checker today. Fast, private, and reliable.

No credit card required
14-day free trial
Cancel anytime
From the Blog

Latest Insights

Explore our latest articles on AI detection, content verification, and digital authenticity.

How to Detect AI-Generated Text in 2025 (Even from ChatGPT & Claude)
AI Content Detection

How to Detect AI-Generated Text in 2025 (Even from ChatGPT & Claude)

Learn the latest techniques and tools to detect AI-generated text, including content from ChatGPT, Claude, and more. Stay ahead in 2025 with the most accurate AI content detection strategies.

Priya Sharma

Priya Sharma

January 20, 2025

Read More
ChatGPT Detector Tools Compared: Which One Is the Most Accurate?
AI Content Detection

ChatGPT Detector Tools Compared: Which One Is the Most Accurate?

We compare the top ChatGPT detector tools for 2025 to help you find the most reliable solution for identifying AI-written content.

Alex Kim

Alex Kim

June 28, 2024

Read More
Can Google Detect AI Content? What You Need to Know for SEO
AI Content Detection

Can Google Detect AI Content? What You Need to Know for SEO

Discover how Google approaches AI content detection, what it means for your SEO, and how to avoid penalties in 2024 and beyond.

Samantha Lee

Samantha Lee

June 10, 2024

Read More

Frequently Asked Questions

Everything you need to know about OriginChecker

OriginChecker's AI detection algorithm achieves an accuracy rate of 99.7% for identifying content generated by leading AI models like ChatGPT, Claude, Bard, and others. Our system is regularly updated to stay current with new AI language models and evolving text generation techniques.
Our plagiarism detection system compares your text against billions of web pages, academic papers, books, and other published content. When matches are found, we provide source links and similarity scores, allowing you to identify potential plagiarism and properly cite sources.
Yes, your privacy is our priority. All content submitted to OriginChecker is processed securely with encryption both in transit and at rest. We do not store your content after analysis is complete, and your submissions are never used to train our models or shared with third parties.
The Free plan supports direct text input. Pro plans support .txt, .doc, .docx, and .pdf files. Business plans support additional formats including .rtf, .odt, .ppt, .pptx, and more. All plans also support direct text pasting into our editor.
The Free plan allows checks for up to 1,000 words per submission. Pro plan increases this to 5,000 words, while Business plan supports up to 25,000 words per check. For larger documents, you can split them into multiple checks or contact us for custom enterprise solutions.
Absolutely! OriginChecker is designed to help students, researchers, and academic institutions verify the originality of their work. Our system can detect both AI-generated content and traditional plagiarism, making it perfect for academic integrity checks.
Yes, API access is available on our Business plan and custom Enterprise solutions. This allows you to integrate OriginChecker's powerful detection capabilities directly into your own applications, learning management systems, or content management platforms.
Our web content database is updated continuously, with millions of new web pages indexed daily. Our academic database is updated monthly with new publications. Our AI detection models are regularly trained on the latest AI-generated content to maintain high accuracy.

Can't find what you're looking for?

Contact our support team