ExamAI – AI-Powered Study & Exam Preparation Platform

Overview

ExamAI is a full-stack AI-powered web application that helps students generate personalized study material in seconds. Users enter a topic, study level, and target exam, and the platform uses the Google Gemini API to create comprehensive notes, quick revision sheets, priority-based subtopics, practice questions, Mermaid.js flowcharts, and Recharts visualizations. A credit-based system powered by Razorpay allows users to purchase credits securely.

Problem Statement

Students often spend significant time searching for reliable study resources and preparing revision notes. ExamAI simplifies this process by generating structured, exam-focused learning content with interactive visualizations and self-assessment tools.

Key Features

AI-generated study notes using Google Gemini API
Quick Revision Mode for faster learning
Priority-based topic breakdown
AI-generated short and long practice questions
Interactive Mermaid.js flowcharts
Dynamic charts using Recharts
PDF download with PDFKit
Google Sign-In & JWT authentication
Razorpay-powered credit purchase system
Responsive and modern user interface

Technology Stack

Frontend

React 19
React Router v7
Tailwind CSS v4
Redux Toolkit
Framer Motion
React Markdown
Mermaid.js
Recharts

Backend

Node.js
Express.js
MongoDB
Mongoose
Google Gemini API
Razorpay
PDFKit

Authentication

Google OAuth
JWT with Secure HttpOnly Cookies

How It Works

Users sign in using Google.
Enter a topic, study level, and exam type.
Select optional features like revision mode, diagrams, or charts.
Gemini AI generates structured study content.
Users can view notes, diagrams, charts, and practice questions.
Study material can be downloaded as a PDF.
Credits are deducted automatically after each AI generation.

Core Functionalities

AI-powered note generation
Interactive revision and self-testing
Mermaid flowchart visualization
Recharts-based analytics
Credit management with Razorpay
Secure authentication and protected routes
PDF export for offline study

Future Enhancements

AI quizzes and flashcards
Multi-language support
Study planner
Learning analytics
Mobile application

Outcome

ExamAI provides an intelligent, all-in-one study platform that combines AI-generated notes, visual learning, revision tools, secure authentication, and online payments to make exam preparation faster, smarter, and more engaging.