PaperTrail™ Academic
Six tools that give teachers structured, repeatable, documentable insight into how student writing was produced — from process monitoring in the classroom to a spoken defense of the finished essay. The evidence speaks clearly. The judgment stays yours.
A structured, repeatable, documentable data point for the hardest conversation in teaching.
The PaperTrail Suite
Click any card to see a full preview and feature breakdown.
Reconstruct the full revision history of any Google Doc — every session, paste, and pause — into a clear, documentable timeline.
Compare a known writing sample against the submitted work using seven research-based stylometric metrics. The only PaperTrail tool that compares two pieces of writing against each other.
AI-assisted deep stylometric analysis — examine internal consistency within a single essay, or compare it against a controlled writing sample across ten research-grounded dimensions.
Every citation in the essay checked against the source itself — does the bibliography match the in-text citations, does the source exist, and does it actually say what the essay claims it says.
The essay generates its own defense: AI drafts questions about the student's authorial choices, you curate them, and the student answers out loud at a private link — one take, no account.
A focused, timed writing environment for in-class assignments. Students write; the session records the process. Teachers see a full behavioral log on submission.
An evidence base, not a verdict
No single tool can determine whether work is authentic. PaperTrail is built around the idea that defensible educator judgment comes from multiple independent sources of evidence — each answering a different question.
Sessions, paste activity, struggle moments, and writing-process metrics — a printable observational report on how the document was assembled. Free, runs entirely in your browser.
Seven stylometric metrics compare the submitted writing to a known sample by the same student. The only PaperTrail tool that compares two pieces of writing against each other.
Tools like Turnitin or your institution's source-matching service answer a question PaperTrail does not — surfacing matches against published sources, prior submissions, and AI-generated text.
A document that is flagged by source-matching, shows stylistic divergence in StyleMatch, AND shows surface editing only in Process View is a different conversation than any of those signals alone. The evidence stack is what makes the conversation defensible.
Verify (AI-assisted close reading), Verify Citations (every source checked against what it actually says), and Oral Defense (the student accounts for their writing, out loud) are further signals available when the situation calls for more — see below.
Pricing
Inspect is free forever, no account required. StyleMatch is a small subscription; Verify, Verify Citations, and Oral Defense run on PaperTrail Tokens — pay only when the situation calls for more.
No account required
Stylistic comparison — does it sound like them?
or $19.99/year — save 16%
AI-assisted close reading & citation checking
Citations check: from 2 tokens per essay
The student accounts for their writing — out loud
1 to generate questions + 1 to send — from $1.20
The pay-as-you-go unit for PaperTrail's AI-assisted tools. A token is $0.60 in the starter pack, down to $0.45 in the year pack. Buy once, spend from the same wallet:
*Covers 25 citations, +1 token per additional 25. Oral Defense: 1 token to generate questions + 1 to send.
Common questions
No. AI detectors return a probability — a percentage chance that text was AI-generated — and that number is often wrong, especially for ESL students and neurodivergent writers whose natural phrasing can read as "unnatural" to a model. PaperTrail doesn't guess at authorship from the text alone. Inspect shows you the document's actual revision history. StyleMatch compares writing style against a student's own past work. Verify adds AI-assisted analysis on top of that evidence — but the output is always a report you interpret, never a score that decides for you.
No — that's a different problem. Plagiarism checkers like Turnitin scan submitted text against a database of existing sources to find copied passages. PaperTrail doesn't do that. Verify Citations checks something more specific: whether the sources a student cites actually say what the essay claims they say. That catches fabricated or misrepresented evidence, which a plagiarism checker won't.
No single signal proves it either way, which is why PaperTrail is built around three independent ones instead of one verdict. Inspect shows the session history — how the document was actually typed, including any large paste events. StyleMatch flags whether the submitted essay's sentence structure, vocabulary, and punctuation diverge from that student's own controlled writing sample. Verify adds a deeper AI-assisted read of internal consistency, and Oral Defense lets the essay generate its own follow-up questions for the student to answer out loud. None of these alone is proof. Together, they're a documentable, defensible basis for a conversation.
Because they're built to output a probability, not a fact — and that probability is trained on patterns that don't hold evenly across writers. Formulaic, tightly-structured writing (the kind ESL students and many neurodivergent students are taught to produce) frequently scores as "more likely AI" even when it's entirely their own. That's a structural problem with score-based detection, not a tuning issue. It's why PaperTrail doesn't produce a single AI-probability number — we show you what happened in the document instead of asking you to trust a model's guess about the text.
Inspect does the same core thing — replay a Google Doc's edit history — and it's free, with no account required, rather than a paid subscription. Where Inspect goes further is in what it surfaces automatically: paste-and-novelty scoring, struggle-moment detection, and a printable Process View report you can hand a student or parent, not just a scrubber timeline you watch by hand.
An AI detector asks "does this text look machine-generated?" StyleMatch asks a narrower, more answerable question: "does this sound like the same person who wrote their in-class sample?" It's authorship consistency, not AI-generation probability — seven stylometric metrics (function words, punctuation patterns, sentence rhythm, and more) computed client-side, nothing transmitted. A ghostwritten essay and a heavily AI-edited essay can both fail a style match without either one tripping an AI detector.
Yes — that's half the point. A revision history that shows steady, incremental work over several sessions is real evidence, and it goes both directions. Inspect's Process View report and Oral Defense's recorded answers give a student something concrete to point to, not just a denial.
For Schools & Departments
When a teacher brings PaperTrail to their department head or IT coordinator, we want the answer to be easy.
Get in Touch
Questions about how PaperTrail works, privacy concerns, school and department inquiries — PaperTrail Academic is built by a teacher.