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Answer Sheet Scanner: Grade Bubble Sheets With Your Phone

No OMR scanner required. Photograph the QR-coded answer sheets of any exam you create in Quesro, or upload them as a PDF from a document scanner. The marks are read, each sheet is matched to the right student, and the exam is graded automatically.

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What you can do

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QR-coded answer sheets

Each student gets a QR-coded answer sheet printed with the exam. The QR code identifies the exam and the student, so there is no manual matching.

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Phone photos or PDF

Photograph the sheets one by one with your phone, or upload a single multi-page PDF from a scanner.

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Multiple test versions

Create A/B versions with shuffled question order; each student is graded with the answer key of their own version.

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Guessing penalty (optional)

Optionally let wrong answers deduct points; the deduction is calculated per question from its number of choices.

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Re-grade after a key change

Fix an answer in the key and re-grade the whole class with one click — the students' marks are stored, so nothing is re-scanned.

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Together with written answers

For mixed exams, upload students' open-ended answer pages along with the answer sheet; they are graded by AI.

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Results, report cards and analytics

See results by student, question and objective, review report cards and send approved results to parents.

How it works

1

Create and print the exam

Build the exam from your question bank; the exam papers and QR-coded answer sheets are printed together.

2

Upload the sheets

Photograph the completed sheets or upload them as a PDF. For best results, keep one sheet per photo.

3

Review the results

Check the scanned marks, approve the results, and your report cards and analytics are ready.

Frequently asked questions

Do I need an OMR scanner?

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No. A phone with a camera or a regular document scanner is enough — sheets are uploaded as photos or PDFs.

Which answer sheets can be read?

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The QR-coded answer sheets generated with exams created in Quesro. The QR code links each sheet to its exam and student automatically.

What if a mark can't be read?

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You see the scan results before grading; uncertain rows are highlighted and you can correct them by hand.

Can open-ended questions be graded too?

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Yes. Written-answer pages uploaded with the answer sheet are graded by AI and count toward the score after the teacher approves.

More features

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AI Question Generator

Pick a subject, grade and learning objective; Quesro's AI writes context-based questions with step-by-step solutions, graphs and answer keys in seconds.
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Online Homework & Exams

Assign online homework and exams to your class or share them with a code. Students answer multiple-choice on screen and write or upload their open-ended work.
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AI Grading for Open-Ended Questions

Quesro reads students' handwritten solutions and grades open-ended questions step by step with AI — the teacher always has the final say.

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Create your free account and try Quesro in your own classroom right away.

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