AI Checker for Teachers

Essay doesn’t sound like your student? See which sections look AI-written before you grade.

Double checked by

  • Originality AI Detection
  • Scribbr AI Detection
  • GPTZero AI Detection
  • Copyleaks AI Detection

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How to Check Student Writing for AI

Whether it’s one essay or a full class set, this AI checker for teachers fits right between reading and grading, with no installation needed.

Make your content flow naturally

Add the Submission

Paste the student’s text or upload a PDF, DOCX, or TXT file. There’s no need to copy text out of a document; the whole file is checked.

Spot AI Text, Check the Facts

Run the Scan

Upload student submissions one document at a time (DOC, DOCX, PDF, or TXT files up to 10 MB) and see which drafts need a closer look before you start grading.

Turn AI Text into Authentic Voice

Understand Mixed Authorship

See which passages read as AI-written and which as the student’s own. Compare them with earlier drafts or past work before you decide what to do next.

180 K+

Active Users

900 K+

School Assignments Evaluated

1,200+

Daily New Documents

What Teachers Say About Our AI Checker

AI tools now show up in student writing in many forms: an outline, a reworded paragraph, a complete draft. According to the 2026 Student Generative AI Survey by the Higher Education Policy Institute (HEPI), 95% of UK undergraduates report using AI in at least one way, while 94% have used generative AI to help with assessed work.

Emily C.

Emily C.

High School English Teacher

I knew something had changed in his work. At least now I have another way to check.

Mark D.

Mark D.

University Lecturer

A perfect essay from a student who barely writes a paragraph? Yeah, I wanted a second opinion.

S. Martinez

S. Martinez

ESL Instructor

It's hard these days! Thanks!

James K.

James K.

Academic Coordinator

Honestly, pretty useful!

Rachel

Rachel

Teaching Assistant

Makes my job easier!

Daniel Brooks

Daniel Brooks

College Professor

Some papers sound almost too natural now. It's tricky. This helps a bit, though.

A. Thompson

A. Thompson

Curriculum Designer

I have 80 students this semester. So yeah, every minute counts. This saves me some hassle.

Priya S.

Priya S.

Graduate Instructor

Big relief!

Lucas F.

Lucas F.

High School Teacher

The report helps, sure. But I still talk to students. That part matters most.

Noah Williams

Noah Williams

Education Consultant

I already check for plagiarism. This is another step. Honestly, I find it useful.

Megan L.

Megan L.

Online Course Instructor

I use it with my usual checks - nothing complicated. That's why I like it.

David Romero

David Romero

Communications Lecturer

Yeah, I know detectors miss things. But I'd rather have another clue than none.

Grade With Clearer Evidence

When a submission feels off, you get a quick check and something concrete to discuss:

Reduce the Risk of False Accusations

Wrongly flagging a student is a real risk. A false-positive rate of under 1% keeps that risk low, so your conversations start from evidence.

Understand How Students Use AI

A mostly original essay can still contain AI-written passages. Seeing the mix lets you give feedback on the student’s own writing and discuss the rest.

Save Time When Grading

With 100+ submissions a week, close reading for AI isn’t realistic. Run a quick check first and spend your time on the work that needs it.

Share Results With Context

Download a detailed PDF report with the flagged sections highlighted, so a student or coordinator sees exactly what you saw.

Pricing

Check twice. Submit with confidence. Find potential plagiarism, review matched passages, and keep your work on track.

97.4% Positive Reviews

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Frequently Asked Questions

Is the AI checker free?

Yes, with a free account you can check up to 3,000 characters with 1 free check per day. Paid options - including the 7-Day Trial ($2.00, then $39.99/month) and the Unlimited Annual plan ($95.88/year) - add unlimited daily scans, detailed sentence-level PDF exports, and 10 MB document uploads.

Will it flag students who write in a second language?

Any detector can. Ours is specifically calibrated for non-native English (ESL) writers to keep false positives under 1%. If an ESL student is flagged, compare with their earlier work before you decide.

How should teachers interpret AI detection results?

Treat AI results as indicators, not final proof. A flag means the text has patterns worth a closer look, not that AI was definitely used.

Can this tool reliably detect ChatGPT or other AI in assignments?

In testing, it detected 98%+ of AI-generated text from ChatGPT, Claude, and Gemini (based on multi-model benchmark testing), with a false-positive rate of under 1%. No detector is perfect, so review results alongside drafts, revision history, and your own judgment.

What types of student work can I check?

Essays, reports, discussion posts… pretty much anything with enough text to analyze. Longer, structured responses give the detector more to work with. Very short answers under 50 words may not give a clear result.

Is it appropriate to use AI detection as proof of academic misconduct?

Not on its own. Most educators treat it as one piece of the puzzle. It can raise a flag, but confirming misconduct usually involves more: a plagiarism checker, earlier drafts, or even just asking the student a few direct questions about what they wrote.

How fast is the detection process?

Most checks finish in 15–20 seconds. Longer documents like research papers may take 1 to 3 minutes.

What about student privacy and data protection?

Student work isn’t used to train AI models and is encrypted during processing. Files are stored securely for as long as your account remains active, and you can delete your files and scan history at any time directly from your dashboard.

Can this help prevent AI misuse, or just detect it?

Detection alone doesn’t prevent misuse. Explaining up front that work will be checked, and why, can make students more open about how they used AI.