Urgent: For Computer Science Educators

We tested your colleagues' courses.
Here's what we found.

Our research team conducted a comprehensive study submitting over 8,000 plagiarized programming assignments to computer science courses across the United States.

The Study

We submitted 8,247 plagiarized assignments to computer science programs at institutions that advertise "comprehensive academic integrity checking" in their course syllabi.

Every single submission was 100% copied from easily accessible sources:

ChatGPT
GitHub
Stack Overflow
Chegg
Past Submissions

Results

100%
Went Unpunished
0
Flagged by Tools
0
Used Codequiry

Why Every Single Submission Went Undetected

1

None Used Web-Scanning Technology

Every institution in our study relied on traditional peer-comparison tools like MOSS, JPlag, or SafeAssign. These tools can only compare submissions within your own course section. They cannot scan the internet. Students who copy from GitHub, ChatGPT, or Chegg are completely invisible to these systems.

2

Traditional Tools Have Zero AI Detection

Tools like MOSS were created in the 1990s and early 2000s—decades before ChatGPT existed. They have no capability to detect AI-generated code. Your students know this. They're using ChatGPT extensively because they understand that traditional detection methods are blind to it.

3

Course Syllabi Create False Security

Many syllabi state that submissions will be checked for plagiarism using "comprehensive detection systems" or "advanced integrity tools." However, if Codequiry isn't specifically named, these claims may be misleading. Free, self-hosted tools like MOSS and JPlag have severe limitations that aren't disclosed to students—creating a false sense of deterrence.

4

Codequiry Is The Only Solution That Detects Both

We are the only code plagiarism detection platform on the market that combines web scanning AND AI detection in a single system. While traditional tools only compare student-to-student submissions (peer checking), Codequiry scans against 40+ billion web sources, detects AI-generated patterns, and provides line-by-line evidence—protecting your course from both internal and external plagiarism.

Protect Your Course's Academic Integrity

Your students know which professors use weak detection tools. If you're not using modern web-scanning and AI detection technology, you're 100% vulnerable to external plagiarism.

Free forever for educators • No credit card required

We've caught 963 students cheating.

Detected by Codequiry's advanced Hexagram tokenization engine—next-generation plagiarism detection.

38

Expelled

Expelled from university for violating academic integrity policies.

17

Degrees Revoked

Degrees revoked. Unable to graduate. Years of work erased.

216

Failed Course

Failed entire course. Had to retake or delay graduation.

692

Failed Assignment

Failed assignment, lower GPA, tanked academic standing.

All violations were recorded on permanent academic records. These records follow students throughout their careers, affecting job opportunities, graduate school admissions, and professional licensing.

For Students

Write your code with integrity. Academic violations remain on transcripts permanently and are reviewed by every graduate school, employer, and professional licensing board. One mistake can haunt your career for decades.

For Educators

Every case above was detected by Codequiry's Hexagram engine—violations that traditional tools and manual reviews completely missed. Protect your classroom with next-generation detection technology.

Start detecting plagiarism today

Trusted by educators worldwide

Free plan available • No credit card required

Data scientist working
Plagiarism Detected 3
AI Score
92%
Proven Detection Technology

Why Codequiry Stands Apart

Purpose-built for code detection. Advanced algorithms for programming plagiarism and AI detection.

Advanced Tech

Precision-Grade Detection

Advanced fingerprinting with hexagram tokenization (modern successor to winnowing) and AST/CFG analysis. Detects rewritten, refactored, and obfuscated code while minimizing false positives.

  • Resilient to variable renaming, code re‑ordering, and whitespace changes
  • Superior recall and evidence compared to legacy tools
  • Advanced collusion detection within cohorts
  • Integrated AI‑generated code detection
99.8%
Precision
<1%
False Positives
vs Legacy
200
ZIPs/Run
Lightning Fast

Fast Results & Global Coverage

Get comprehensive results in minutes with unparalleled global coverage. Scans billions of sources across GitHub, Stack Overflow, academic databases, and detects AI-generated patterns worldwide.

  • Comprehensive results delivered within 10-20 minutes
  • 40+ billion lines of indexed code
  • GitHub, StackOverflow, academic databases
  • Real-time web scanning capabilities
10-20
Minutes
190+
Countries
40B+
Sources
24/7
Uptime
Powered by Three Advanced Engines

Multi-Engine Detection System

Codequiry combines three specialized detection engines working seamlessly together to provide comprehensive plagiarism detection. Each engine is purpose-built to catch different forms of academic dishonesty.

Core Engine

Codequiry Hexagram

Advanced Tokenization • Peer Comparison

Our proprietary hexagram tokenization algorithm—next-generation peer comparison with advanced structural analysis. Compares cohorts of submissions against each other using sophisticated peer-to-peer analysis. Processes up to 500 submissions in minutes with multi-threading, achieving fewer false positives and superior detection compared to traditional text-matching approaches.

Group Similarity Multi-Threaded Rename-Proof Order-Agnostic
500 Submissions <2 Min Results Fewer False Positives
Codequiry Hexagram The core foundation powering cohort-based similarity detection
External Scanner

Web Check Engine

External Detection • Database History

Scans trillions of sources across the web to detect external code plagiarism. Efficiently compares submissions against GitHub, Stack Overflow, Chegg, public repositories, and more using our hexagram comparison technology. Includes database and historical analysis to detect resubmissions and evolving patterns over time.

GitHub Repos Stack Overflow Database History Indexed Web
Trillions of Sources Past Submissions <30 Min Scan
Web Check Catches code copied from external sources with exceptional precision
Always Improving

AI Detection Engine

ML Classification • Pattern Analysis

Identifies when students use ChatGPT, GitHub Copilot, or other AI models to generate code. Combines machine learning classification with proprietary heuristics and pattern detection that continuously evolves to stay ahead of emerging AI models. Our adaptive system maintains accuracy as AI technology advances.

ML Classification Pattern Detection Ever-Updating ChatGPT Detection
Proprietary Tech New Feature Always Learning
AI Detection Stay ahead of AI-generated code with adaptive detection
All three engines work seamlessly together to provide the most comprehensive plagiarism detection available
Try All Three Engines Free Learn More
Global Coverage

The most comprehensive
code plagiarism detection
on the planet

40+ billion sources. Real-time monitoring. Zero blind spots.

40B+
Sources Monitored
12
Active Channels
24/7
Live Scanning
Coverage Depth
1

Global Web Search

Comprehensive coverage of all sites containing similar code. Advanced algorithms analyze patterns across trillions of web pages, combining real-time search with our proprietary index of previously discovered sources.

Trillions of Pages
Real-Time + Index
Live + Indexed
2

Public Git Repositories

Comprehensive scanning of all public GitHub, GitLab, Bitbucket repositories, and Gists. Monitors over 100+ million repositories and billions of code files with continuous updates.

100M+ Repos
Billions of Files
Repos + Gists
3

Stack Overflow

Real-time search of all Stack Overflow questions, answers, and code snippets. Monitors over 23+ million questions and millions of code solutions for pattern matching.

23M+ Questions
Millions of Answers
Live Platform Monitoring
4

Underground Cheating

Underground cheating websites. Over 100 million source code files from contract cheating services and hidden paywall platforms. Access to thousands of underground sites and millions of contract cheating submissions.

100M+ Files
Contract Cheating
Black Box • Course Hero • Chegg
5

Academic & Code Archives

Over 2 terabytes of code from legacy archives including Google Code, SourceForge, and global Internet repositories. Contains tens of millions of archived code files spanning decades.

2+ TB Archive
Tens of Millions
Google Code • Global Archives
6

Historical Comparison

Compare against previous semesters and submissions when enabled. Track patterns across unlimited historical submissions to identify repeat patterns and evolving strategies.

Unlimited History
Pattern Tracking
Optional Feature

Codequiry Database

Our proprietary database built over years of academic collections. Contains hundreds of millions of code submissions from institutions worldwide. Exclusive pattern recognition capabilities.

Years of Collections
Hundreds of Millions
Proprietary

Partner Networks

Strategic partnerships with major institutions and repositories provide access to exclusive code collections that exist beyond public reach. Millions of private submissions accessible only through Codequiry.

Global Partnerships
Millions of Files
Exclusive
9

Code Snippet Platforms

Monitoring of popular code sharing platforms, pastebins, and developer communities. Tracking millions of code snippets across platforms like Pastebin, CodePen, JSFiddle, and more.

Millions of Snippets
Multiple Platforms
Developer Communities
10

Open Source Repositories

Comprehensive indexing of open source libraries, packages, and frameworks. Tracking millions of packages across npm, PyPI, Maven, and other registries with smart filtering.

Millions of Packages
All Major Registries
Smart Filtering
11

Tutorial & Educational Sites

Scanning of coding tutorials, educational platforms, and learning resources. Monitoring thousands of tutorial sites and millions of code examples from platforms like Udemy, Coursera, and more.

Thousands of Sites
Millions of Examples
Educational Content
12

Reddit & Community Forums

Monitoring Reddit Q&A in computer science communities and programming forums. Tracking millions of posts across major CS subreddits and developer communities where code is shared.

Millions of Posts
CS Communities
Community Monitoring

Complete Coverage. Zero Blind Spots.

Our multi-source approach ensures the highest detection rates in the industry, making code plagiarism virtually impossible to hide.

Start Detecting Now
Trusted by 5,000+ Institutions

Loved by Leading Educators

Join thousands of professors protecting academic integrity with industry-leading detection technology

"The results UI is beautiful and super easy to use. The result driller makes it incredibly easy to check through even over 100 students' submissions. Unlike anything we've ever used—it doesn't compare to other tools available."

PP
Priya Patel
Professor of Computer Science

"We use Codequiry to ensure every submission is written authentically by hand by all students in our class. Codequiry makes this an absolute breeze—we just export from our LMS and drop them straight into the platform for analysis."

JR
Prof. John Rapoport
Professor of Computer Science

"Codequiry's database catches so much from past submissions and retains a global matching database. This is something we don't have access to with other tools—we get inter-university matches if there was collaboration, and matches from all over the web. The AI detection is next level; it alerts us whether there's clearly a discrepancy in submissions."

NN
Dr. Nagayan Nuin
Associate Professor of CS
4.9
Average Rating
5,000+
Institutions
147
Reviews
98%
Would Recommend

Global Code Database with Universal Language Support

Traditional text plagiarism scanners can't interpret source code or uncover structural matches. Codequiry's Hexagram engine identifies similar submissions across 50+ languages and 40+ billion sources.

Massive Global Database

We maintain comprehensive global and academic code databases to detect plagiarism across universities, past submissions, and web sources worldwide.

98.7%
Detection Rate
40B+
Web Sources
10min
Avg Report
50+
Languages
Create Free Account

50+ Programming Languages

Universal native parsing for all major programming languages. Our engine understands syntax, structure, and semantics across languages.

Python JavaScript Java C++ C# PHP C TypeScript Swift Kotlin Rust Go Ruby SQL R MATLAB Haskell Scala Dart Elixir Assembly Objective-C Julia Groovy +24 more

Auto-detects language • Native AST parsing • Framework-aware

Detection Rate
0%
Typical on standard university datasets
Web Scale
0+
search depth
Turnaround
0 min
avg report

Stop copy‑paste coding and AI‑assisted shortcuts without slowing your course. Codequiry analyzes structure and logic—not just tokens—to surface defensible, line‑level evidence your faculty can act on in minutes.

Massive Database
Check against over 25 billion lines of public code

Comprehensive database scanning with the world's largest code repository index for maximum coverage and superior detection accuracy

Universal Sources
Matches from GitHub, StackOverflow, academic databases and millions more sites

Multi-source detection across the entire web, including private repositories and educational platforms

Smart Analysis
Measure software similarity (Superior MOSS alternative)

Advanced similarity algorithms with machine learning for precise detection and minimal false positives

Visual Intelligence
Interactive 2D diagrams of submission similarity by distance

Find clusters of cheating within a classroom or group with stunning visual analytics and clustering

Detailed View
Matched code snippets with advanced detailed viewer

Side-by-side line-by-line comparison with syntax highlighting and similarity scoring

Rich Insights
Dynamic pie charts showing all sources used in code

Crystal clear breakdown of code origins and sources with interactive visualizations and metrics

AI-Powered
Automatically recognizes and filters base code templates

Smart AI detection of common code patterns, libraries, and boilerplate to focus on original content

Global Reach
See highlighted matches from billions of sources across the web

Worldwide web scanning with real-time access to the latest code repositories and online sources

Trust Score
Intelligent confidence scoring of overall submission originality

Reliable AI-calculated confidence scoring with detailed explanations for informed decision making

Industry Leader
Superior detection accuracy compared to other tools

Industry-leading accuracy with comprehensive analysis trusted by 1,000+ universities worldwide

Lightning Speed
Lightning-fast results delivered within 10 minutes

Get comprehensive results quickly without waiting hours. Advanced cloud processing at search depth of 500+ million files

Enterprise Security
Bank-level secure and private code analysis

Your code is encrypted with enterprise-grade security, never stored permanently, and never shared with third parties

Faculty verification is required to access .edu benefits

Built for every code integrity need

From universities to enterprises, Codequiry ensures code originality across every environment.

Universities & Colleges

Ensure academic integrity by verifying that students submit original work. Detect plagiarism across assignments, projects, and exams in real-time.

Classroom-scale analysis up to 500 submissions
Peer comparison and web detection
Detailed reports for academic records

Tech Companies

Protect intellectual property and ensure employees follow licensing requirements. Verify that code contributions are original and not copied from external sources.

Repository scanning across GitHub and internal repos
License compliance verification
Continuous monitoring and alerts

Coding Bootcamps

Maintain program quality by ensuring all student projects and assignments are originally written. Build trust with hiring partners through verified graduate portfolios.

Batch processing for cohort-based programs
Portfolio verification for hiring partners
Fast turnaround for fast-paced curricula
How It Works

We make code plagiarism checking as easy as it should be

01

Upload

Drag and drop your code submissions. Auto-detects 50+ languages.

02

Configure

Choose detection scope: peer matching, web scanning, AI detection.

03

Analyze

Advanced algorithms detect similarity through AST and token analysis.

04

Review

Get comprehensive reports with side-by-side diffs and evidence.

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