Student data is processed in your browser; these tools do not upload it to our server.
OMR Score & Negative Marking Calculator (Answer Key, Quick Count & Class CSV)
Check student OMR responses against an answer key, compute quick net marks from Attempted + Correct counts, or batch-grade an entire classroom via CSV.
Select Marking Scheme
Tap Key:
Tap Answer:
Total Net Score
0 / 0
Percentage (%)
0%
Accuracy
0%
Correct
0
Wrong
0
Skipped
0
Question-by-Question Breakdown
Frequently Asked Questions (FAQ)
How does negative marking calculation work?
Net Score = (Correct Answers × Marks per Correct) − (Wrong Answers × Penalty per Wrong). Unattempted questions (marked with - or X) receive 0 without penalty. Match the answer key to the same test and question order. Check a small sample by hand before using the class results.
Is student CSV data uploaded to any server?
No. All grading, ranking, and CSV/Excel file exports happen 100% locally inside your web browser. The site still makes normal page and font requests. Do not include student records in a support email. You choose whether to send the email draft through your email app.