Mark-O-Matic
40 essays graded
before your coffee gets cold.
Not just faster and easier. Better.
Upload papers. Apply your rubric. Get back graded essays with inline Word comments, rubric scores, and actionable feedback your students will actually use.
Assignments
TESL 5350 - Week 4 Analysis
Mar 18, 2026
Advanced Composition - Midterm
Mar 20, 2026
Sociolinguistics - Research Paper
Mar 21, 2026
Built by writing instructors
who code, not coders
who don't teach.
Mark-O-Matic isn't a generic AI wrapper. It was designed by a team of educators with publications in AI-assisted writing assessment and years of experience teaching writing. It was use-case tested in university classrooms over a period of three years. The tool provides a level of granular feedback that is unparalleled by any other writing assessment tool.
Features
The copilot that actually reads the paper
Your rubric. Your criteria. Your scoring scale. Mark-O-Matic handles the heavy lifting so you can focus on teaching.
Inline Word Comments
AI-generated feedback injected directly into the original .docx as margin comments. Students open the file and see actionable annotations right where the problem is.
EFL-Aware Scoring
Built for multilingual classrooms. Generous, constructive, non-punitive grading that recognizes the difference between a mistake and a misunderstanding.
Canvas LMS Integration
Pull assignments, rubrics, and student submissions from Canvas. Grade in Mark-O-Matic. Push scored rubrics and commented essays back. One-click round trip.
Your Rubric, Your Criteria
Paste your own rubric as plain text, or use our research-backed defaults. Set criteria, scoring levels, and level descriptors. Mark-O-Matic scores against exactly what you define.
10 Exports. 5 Formats.
Commented essays, teaching guides, rubric scoresheets, grade CSVs, full reports, score reports, feedback summaries, and more. DOCX, PDF, CSV, Markdown, Excel. Batch download as a ZIP.
Advisory AI Detection
Every evaluation includes an AI detection score with transparent reasoning. Treated as one data point, not a verdict. No false accusations, no black-box judgments.
Edit Before You Export
Every score is clickable. Every comment is editable. Review and refine every evaluation before it reaches a student. Mark-O-Matic is a copilot, not an autopilot.
Your Data Stays Yours
Student papers are encrypted in transit and at rest. Private storage with strict row-level security. Papers are never used for model training.
No Subscriptions Ever
Buy credits when you need them. Use them when you have papers. Unused credits never expire. You pay for grading, not for months off. Ever.
Deep Evaluation
Every paper gets
the full treatment
Per-criterion scores, inline comments, strengths, improvements, and AI detection — all in one view. Every score is editable. Every comment is refinable. Export only when you're satisfied.
- Per-criterion score + level label + justification
- Up to 6 inline comments anchored to passages
- Up to 5 surface comments on recurring patterns
- Strengths, improvements, overall comment
How It Works
Upload. Download.
Done.
Choose a Rubric
Paste your own rubric or use our research-backed default. Define your criteria and scoring levels.
Upload Papers
Drag and drop up to 100 student papers. Accepts .docx, .pdf, and .txt files.
Download Results
Get back commented essays, rubric scores, teaching guides, and grade exports. Ready to return to students.
Review & Refine
Every grade is
yours to edit
Click any score to adjust it. Edit any comment. Navigate between students with arrow keys. The inline editor gives you full control over every evaluation before you export or push back to Canvas.
Inline Word Comments
Feedback lands exactly
where the problem is
Mark-O-Matic injects real Word margin comments into the original .docx. Students open their own paper and see your feedback right next to the sentence that triggered it. No portal. No summary PDF they'll never read.
Institutional Language Policy in Vietnamese Higher Education
This paper examines how institutional language policies in multilingual settings perpetuate existing hierarchies. Drawing on Bourdieu's concept of linguistic capital, it argues that English-medium instruction functions as a gatekeeping mechanism.
In Vietnamese universities, students from rural provinces face compounded disadvantages beyond proficiency.
Strong thesis framing. Consider specifying which hierarchies — economic, regional, linguistic?
Excellent use of Bourdieu. Add a page citation for linguistic capital here.
Good instinct. Name two of those disadvantages in the next sentence to make it concrete.
Flexible Output
Export anything,
any format
Commented essays, teaching guides, rubric scoresheets, grade CSVs, score reports, feedback summaries. Pick your format — DOCX, PDF, Excel, Markdown — and download individually or as a ZIP.
Canvas LMS Integration
Close the loop
with Canvas
Pull assignments, rubrics, and student submissions straight out of Canvas. Grade them in Mark-O-Matic with your rubric and your criteria. Then push everything back — commented essays, detailed feedback with strengths and improvements, and fully scored rubrics — all reviewable and editable before they reach a single student.
- check_circleOne-click course and assignment import
- check_circleCanvas rubrics mapped to Mark-O-Matic criteria
- check_circleReview & edit every grade before it posts
- check_circlePush graded papers + scores back in one click
The Difference
Hours of grading.
Minutes with Mark-O-Matic.
40 student essays, 500-800 words each. One rubric with 5 criteria. Here's what changes.
Manual Grading
- close25 minutes per paper × 40 papers
- closeRead, score, write comments, enter grade — per student
- closeFeedback quality drops after paper #20
- closeNo cohort-level insight across the class
- closeManual grade entry to LMS
With Mark-O-Matic
- checkUpload 40 papers + rubric in 2 minutes
- checkAI grades all papers against your rubric
- checkInline Word comments injected automatically
- checkReview and edit every score before export
- checkDownload graded essays + CSV for gradebook
What You Get Back
Upload a batch. Get graded essays with comments. Review, refine, export.
The AI does the first pass. You do the final check. Students get better feedback, faster.
Early Users
Teachers who got their
weekends back
“I graded an entire midterm batch while commuting. The inline Word comments are exactly where they need to be, and students actually read them because they open their own paper.”
Dr. L. Nguyen
EFL Composition, Vietnam
“The ability to edit every score and comment before exporting is what sold me. It is not trying to replace me. It gives me a strong first draft to work from.”
Prof. S. Park
Applied Linguistics, Korea
“I kept looking for the catch. It uses my rubric, scores against my criteria, and the papers come back with feedback I would actually give. Only I am not exhausted at paper twenty.”
Dr. R. Chen
Writing Center Director
Names changed. Permission granted. Weekends real.
Exports
Every output your workflow needs
10 output types. 5 formats. Download individually or as a ZIP bundle.
| Output Type | DOCX | CSV | MD | XLSX | |
|---|---|---|---|---|---|
| Commented Assignment | ✓ | — | — | ✓ | — |
| Comment Summary | ✓ | ✓ | ✓ | ✓ | — |
| Teaching Guide | ✓ | ✓ | ✓ | ✓ | — |
| Full Report | ✓ | ✓ | ✓ | ✓ | — |
| Score Report | ✓ | ✓ | — | — | — |
| Feedback Summary | ✓ | ✓ | — | — | — |
| AI Advisory | ✓ | ✓ | — | — | — |
| Class Summary | ✓ | ✓ | — | — | — |
| Rubric Scoresheet | — | — | ✓ | — | ✓ |
| Grades | — | — | ✓ | — | ✓ |
Pricing
Pay only for what you use
No subscriptions. No monthly fees. No paying for months you don't grade. Buy a bundle when you have papers. Use it. When it's done, buy another — or don't. Bundles never expire. Unused credits carry forward forever. You control when you spend, and you keep what you buy. That's it.
Starter
Standard
Team
*Based on 1,000-word essays at default grading settings. Actual essay count varies by length, rubric complexity, and feedback depth.
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FAQ
Questions, answered
Does Mark-O-Matic actually read the whole paper?expand_more
Yes. Every paper is sent to Claude Sonnet 4 in full, along with your rubric, your grading philosophy, and your comment style preferences. It reads end-to-end, scores against your criteria, and generates inline comments anchored to specific passages.
Will it use my students' papers to train AI models?expand_more
No. Student papers are stored in private Supabase storage with row-level security scoped to your account only. Papers are sent to the Anthropic API for grading and are not used for model training. You can delete any assignment at any time and the files are purged from storage.
What if I don't trust the grade?expand_more
Don't. Use it as a first pass. Every score, comment, and justification is editable before you export. Mark-O-Matic is a copilot, not an autopilot — the final grade is always yours.
Can I use my own rubric?expand_more
Absolutely. Paste any rubric as plain text, or use one of our research-backed defaults. Define your criteria, scoring levels, and level descriptors. All of it goes into every evaluation.
Does it handle EFL / multilingual writers?expand_more
That's why it exists. Mark-O-Matic was built in a Vietnamese TESOL classroom. It defaults to generous, constructive scoring that treats language issues as learning opportunities, not errors to penalize.
What does the AI detection score mean?expand_more
It's advisory, not a verdict. Every evaluation includes an AI-detection probability with transparent reasoning. Treat it as one data point. The whole point is to avoid the false-positive nightmares of standalone AI-detector tools.
What happens if I hate it?expand_more
Nothing. You've spent nothing. You get 1,000 credits free to try it on a real batch. No subscription to cancel. No credit card to refund. If it doesn't save you hours, walk away — we don't deserve your time.
Is there a refund policy?expand_more
Yes. Unused credits are refundable within 30 days of purchase, no questions asked. Email support and we'll reverse the transaction.
Upload. Download.
Done.
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