Last updated October 31, 2026 · Prepared by ESAR Scholars Academy
The AI Paper Checker on ESAR Scholars Academy grades scanned OMR bubble sheets, gives AI-assisted marking for written answer scripts, and compiles every result into one class result sheet that you can export to CSV or print. It needs an API key for scanning.
OMR Sheet Checker: scan or upload a filled bubble sheet and grade the MCQs against an answer key you enter.
Answer Script Checker: scan or upload the pages of a written answer script for AI-assisted marking, optionally against your marking scheme or model answers.
Result Compiler: keep every graded result in one compiled class result sheet, with obtained marks, total, percentage and grade, then export it to CSV or print it.
How to check an OMR sheet
Open the AI Paper Checker and add your API key in the connection settings.
Enter the student name or roll number, the class and subject, the number of questions and the marks per correct MCQ.
Enter the answer key in the grid, or paste a quick key such as 1A,2C,3B,4D.
Scan the filled sheet with the camera or upload a photo. Lay it flat in good light, keep the whole sheet in the frame and make sure the bubbles are filled fully and dark.
Press Read & Grade OMR Sheet and review the result before saving it to the class sheet.
What you need, and its limits
Reading bubble sheets and handwriting needs the AI’s vision, so an API key is required for actual checking; without a key you can still set up answer keys and use the result compiler. The key uses the same connection as the AI Paper Generator and is kept only in your browser tab’s memory for the session.
Scans can be misread, especially in poor light or with light pencil marks, and handwriting marking is AI-assisted rather than final. A teacher should check every graded sheet before the marks are used.
It is a free tool on ESAR Scholars Academy for grading filled OMR bubble sheets, getting AI-assisted marking for written answer scripts, and compiling the results into one class result sheet.
Do I need an API key?
Yes, for actual checking, because reading bubble sheets and handwriting needs the AI's vision. Without a key you can still set up answer keys and use the result compiler.
How do I get an accurate OMR scan?
Lay the sheet flat under good light, fill the bubbles fully and dark, and keep the whole sheet inside the camera frame.
Can I export the class results?
Yes. The Result Compiler lets you export the compiled class result to CSV or print it.
Is the marking final?
No. Scanning and handwriting marking can contain errors, so a teacher should review every result before using the marks.