Detect Code Plagiarismin Seconds
Upload student code submissions and instantly compare them against GitHub, Stack Overflow, and each other. Get detailed similarity reports with highlighted matches.
Fuzzy Matching
Advanced algorithms detect paraphrased and reformatted code, not just exact copies.
Online Source Scan
Cross-reference submissions against millions of GitHub repos and Stack Overflow answers.
Similarity Reports
Visual reports with side-by-side highlighted matches and percentage scores.
Simple Pricing
Everything you need to keep your class honest.
- ✓Unlimited submissions per month
- ✓GitHub & Stack Overflow scanning
- ✓Student-to-student comparison
- ✓Downloadable PDF reports
- ✓Email support
FAQ
What programming languages are supported?
CodeGuard supports all major languages including Python, JavaScript, Java, C++, C#, Ruby, Go, and more. Language-aware tokenization improves detection accuracy.
How does the online source comparison work?
We use fuzzy matching algorithms to compare tokenized code against indexed GitHub repositories and Stack Overflow answers, flagging structural and semantic similarities even when variable names are changed.
Is student data kept private?
Yes. Submissions are processed securely, never shared with third parties, and automatically deleted after 30 days. You retain full ownership of all uploaded code.