EdTrain

EdTrain BD - Your specialized Academic and Admission Teacher.

Inspiration

Every year, 1.5 million Bangladeshi students fight for HSC & admission seats, but 90% practice only old, leaked questions or wait days for teacher feedback on CQs.
I’m one of them. Last year I wasted weeks hunting fresh MCQs and proper CQ marking. Nothing existed that felt like the real exam.

So in this hackathon I built exactly what I wish I had: type “Physics” → get a full timed test (25 fresh MCQs or 8 brand-new CQs), answer with phone camera → instant realistic score. No apps, no login, no excuses.

EdTrain is the practice tool Bangladesh never had, built because I’m tired of seeing friends cry over marks they could have earned with better training.

Now every student can train like a beast, for free, anytime.

That’s why EdTrain exists.

What it does

EdTrain turns any phone into a 24/7 personal examiner for Bangladeshi HSC & Admission.
Type a subject → instantly get a timed, board-accurate test:

25 fresh MCQs (remixed from 10+ years of all boards + admission papers)
OR
8 brand-new Creative Questions in perfect Bangla format.
Answer by typing or camera/photo/PDF → EdTrain auto-grades MCQs instantly and marks CQs like a real examiner with exact scores + feedback. Zero login, works offline.

How we built it

48-hour solo sprint on Cloudflare Pages:
Vanilla HTML/CSS/JS + APIs → question generation & marking
Live web search + prompt engineering → fresh MCQs & CQs
Tesseract.js + pdf.js + mammoth → OCR & file parsing
KaTeX/MathJax → perfect math rendering
particles.js + PWA → beautiful offline experience
No backend, no database, no sleep.

Challenges we ran into

Perfect Bangla CQ formatting
Doing Everything on my low-end phone since I don't have any PC or Laptop.
Coding everything on Trebedit, Pydroid, Text formatting apps etc.
Managing every file and hosting it. Due to low RAM management system in my phone, It was super painful 😣.
Hiding API keys with zero backend
Making every test truly unique despite caching
Debugging camera crashes on low-end Androids at 4 AM

Accomplishments that we're proud of

First AI in Bangladesh that marks handwritten CQs accurately
100% offline PWA that works on village 2G
Zero-login, instant tests that feel exactly like real exams
Built entirely in 48 hours with free tools
Already blown away 50+ students in testing

What we learned

Prompt engineering > code for education AI
Bangla typography + OCR is brutally hard but solvable
Students care way more about “feels real” than fancy UI
You can ship life-changing tools with just a phone and caffeine. No PC or Laptop.