VerifyAI

For professors & teachers · free

Check student essays for AI writing — fairly

Upload an essay or PDF and see which sentences read as machine-written. Built to start an honest conversation with a student, not to replace your judgement.

Drop your files here, or click to choose

PDF, TXT or Markdown · up to 8 MB each · up to 10 at once · 5 free checks per hour

No file handy?

What this checker looks at

Sentence-level highlighting

The exact passages that read as AI-written are marked in the student's original text, so you can see the reasoning behind the score.

Whole-class batch checks

In a free workspace, drop a whole class of essays at once and get one list with a result for each paper.

“Needs a conversation”, not “guilty”

Mixed results land in Manual Review instead of a hard verdict. Text detectors can wrongly flag non-native speakers and very polished writers.

Tamper-evident record

Each check records the file's SHA-256 fingerprint and time, so you and the student can confirm exactly which version was reviewed.

How to use it

  1. 1

    Drop the essay as PDF, TXT or Markdown above — or, for a whole class, create a free workspace and upload all papers at once.

  2. 2

    Read the highlighted sentences. Skip quotes, citations and the bibliography — they are not the student's own prose.

  3. 3

    Compare with the student's earlier work, drafts and version history before drawing any conclusion.

  4. 4

    If concerns remain, talk with the student and use the saved report as a starting point, never as sole proof.

Questions

No detector, including ours, should be the only evidence for an academic misconduct finding. Use it to decide which papers deserve a closer look and a conversation.

Other free checkers

Related guides