AI code detector · batch review · reports

AI code detection for batch review, not instant verdicts

Check one file free, or upload a class set to get per-file scores, highlighted snippets, and a report you can use to decide where a closer look is worth your time.

This tool detects AI-generated code — it does not check for bugs. 区隔句 · PRD §3.1 · 待墨笔冻结

Paste code · auto-detects language F1 · 免注册 · 3 次/日 IP 限流

Run a free code check Free single-file check. Batch upload and report export require an account. 0 / 25,000

Screening signal only. Review flagged code before you act on it.

I'm a Teacher →

Scan a whole class set and get a report you can archive.

Reviewing candidates →

Screen take-home submissions before the follow-up interview.

AI detectors are easy to oversell. We would rather show you the limits.

Built for code, not pasted essays Per-file scores with highlighted snippets Reports made for human review

Read how we think about accuracy and limits →

The problem

Checking 40 files before Tuesday is not manageable

If you grade programming assignments, you already know the awkward part. Some submissions look too clean, too fast, or too unlike the student's usual work. Checking one file is manageable. Checking 40 files before Tuesday is not.

An AI code detector should help you sort the pile, not decide the outcome.

I want to be pretty sure when I accuse someone.

r/Professors · a professor discussing AI detection reliability · context, not endorsement

Start a batch review

How it works

Scan the pile, then spend your time where it matters

Upload files or a ZIP from one assignment.
Get a per-file score and highlighted snippets.
Open the report, compare patterns, and choose what to review.

Run a free code check

The report

A report that helps you ask better questions

Each report is built to move you from suspicion to review. See which files need attention, which snippets drove the score, and what to ask next. Export a PDF or CSV when you need a record of the screening step.

Get the report template

report · assignment-04PDF · CSV

AI-likelihood score

14def calculate_grade(scores):

15 total = sum(scores)

Per-file scoreHighlighted snippetsReview notesExport as PDF or CSV

Privacy by default

Your code stays yours

No training on your code

Uploaded code is never used to train AI models.

⌁

Encrypted in transit

Every upload travels over TLS.

⇥

Never shared

Your code is not sold or shared with third parties.

Delete anytime

Remove any upload or report yourself, whenever you want.

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Auto-expiring history

Free history lasts 7 days. Pro reports are kept 12 months, then removed.

A-6 隐私五卡 · 措辞待墨盾裁决后冻结 · 与 C3/C4 实现口径一致

Pricing

Start free. Upgrade when batch review becomes part of grading.

Use the free check for quick one-off reviews. The self-serve plan is $9/month for batch scans and report exports. Exact scan limits and report quotas are being finalized.

See pricing

Questions

Fair questions, straight answers

Can I use the result to accuse a student?

No. Use the result as a screening signal, then review the flagged snippets and talk to the student. A detector score should not be the basis for an accusation or grade penalty.

Will this catch every AI-generated submission?

No. No automated detector can promise that. Code can be edited, rewritten, or mixed with human work, so the report is a way to prioritize review, not a final answer.

What languages does it support?

The first version supports Python, JavaScript, Java, and C++. Those languages cover many intro and intermediate programming courses.

Do students see the report?

That depends on your course policy. If you use a screening tool, tell students how you review flagged work and give them a chance to explain their code.

Do you store uploaded code?

The retention and deletion policy is being finalized with compliance review. Do not upload code you are not allowed to share until those terms are live.

Is this a plagiarism checker?

No. Plagiarism detection compares code against other sources. This tool looks for signals associated with AI-generated code and produces a review report.