Photo the whiteboard.
Quiz the concepts.
Professors erase boards. Cruxly doesn't. Snap a photo of classroom whiteboards and get instant practice questions.
The whiteboard problem—solved
How it works
See Something Important
Professor writes a key concept, formula, or diagram on the board.
Quick Photo
Open Cruxly, snap the whiteboard. Takes 2 seconds—before it's erased.
AI Processes
OCR extracts all text and labels. AI identifies key concepts to quiz.
Study the Content
Take the quiz after class. Actually understand what was on the board.
Built for classroom boards
Glare Handling
Our OCR is optimized for whiteboard photos—handles reflections and uneven lighting better than standard text scanners.
Marker Recognition
Reads text written with dry-erase markers—even when faded or partially erased.
Diagram Support
Extracts labels, arrows, and annotations from diagrams and flowcharts.
Quick Capture
Snap before the professor erases. One tap, instant save, process later.
Frequently asked questions
What about glare and reflections?
Our OCR is trained on real classroom whiteboard photos with various lighting conditions. Mild glare is handled well. For best results, angle your shot to minimize direct reflections.
Can it read different colored markers?
Yes! Blue, black, red, green—all common whiteboard marker colors are recognized. Very light colors like yellow may be harder to read.
What about math written on whiteboards?
Yes, we recognize mathematical notation including equations, Greek letters, and formulas commonly written during lectures.
Does it work with chalkboards too?
Yes, the same technology works for chalkboards, though whiteboards typically have clearer contrast.
Can I share the quiz with classmates?
Yes! Export as PDF or share directly. Everyone can study from the same whiteboard content.
Pick a plan. Cancel anytime.
Start free, upgrade when you need more.
Free
Everything you need to start
- 5 scans per month
- Flashcards & spaced repetition
- Achievements & streaks
- All quiz types (MCQ, T/F, fill-in)
- AI Simplify & Hints
- Export to Anki
- PDF export
Student
For serious students
- 50 scans per month
- Flashcards & spaced repetition
- Achievements & streaks
- AI Simplify & Hints (3/day)
- Export to Anki
- PDF export
Pro
For power users & teachers
- 200 scans per month
- Flashcards & spaced repetition
- Achievements & streaks
- AI Simplify & Hints (10/day)
- Export to Anki + PDF
- Priority support
Enterprise
For schools & organizations. Get unlimited quizzes, team management, SSO/LMS integration, and dedicated support.