Upload Files

Drop ZIP files here

or click to browse

Language

Auto-detect works for most languages

Detection Engine

The most popular engine highly balanced. Scans 400B+ code sources (Web, GitHub, StackOverflow, cheating sites) plus peer comparison. Balanced speed and accuracy for everyday use. ~20 min runtime.

Email for results *

Required for web checks to receive results

Files selected 0

Total FREE

Need more checks? Start a free trial — plans from $79/mo

Quick Code Plagiarism Check

Check source code for plagiarism across 1T+ sources — including GitHub, Stack Overflow, Chegg and more. One-off, no account required.

Used at 500+ universities

3 Free Peer-Only Checks This Week

Upload 2+ ZIP files to compare peers. 3/3 free remaining. Web + AI checks: $59/check

~2 min

Average scan time

Web sources

GitHub, Chegg, SO

AI Detection

ChatGPT, Copilot

One-off scans only. For bulk scans, rollover credits and class management, see the full platform.

Analyzing Code Running

Upload Complete

Files uploaded to engine

Queued for Processing

Waiting for engine...

Analyzing Submissions

Pending

Comparing Against Sources

Pending

Generating Results

Pending

Processing... 0%

This can take up to 15 minutes

If you provided your email, we'll send results when ready. Otherwise, keep this page open.

Do not close or refresh this page while your check is running.

High Similarity Detected 78%

main.py 84% match

utils.py 62% match

helpers.js 51% match

AI-Generated Code Detected

2 files flagged as potentially AI-generated (ChatGPT/Copilot)

3 Web Sources Matched

Code matched against GitHub, StackOverflow & other sources

Your Results Are Ready

We found potential plagiarism in your code.

Unlock full results to see exact matches, sources, and AI detection details.

Exact source URLs & matched code

Side-by-side highlighted diffs

AI-generated code analysis

Downloadable PDF report

Secure payment via Stripe. One-time charge, no subscription.

Quick Code Plagiarism Check

Your Results Are Ready

Plagiarism Analysis Complete