PrepAI – Smart Placement & Exam Assistant

Inspiration

Students often waste time deciding what to study, how to prepare for interviews, and how to improve weak topics. Preparation resources are scattered, which makes the process confusing and unstructured.

We wanted to create a single platform that brings everything together and provides clear, AI-based guidance for students.

What it does

PrepAI is a web application that helps students prepare for placements and exams in one place.

It allows users to:

Improve their resumes Practice mock interviews Generate study plans Solve DSA questions Summarize notes Identify weak areas

The goal is to make preparation simple, structured, and efficient.

How we built it Frontend: React.js Backend: Node.js with Express AI: Google Gemini API UI: Designed using Google Stitch

Workflow:

User Input → Backend → Gemini API → Response → Frontend Display

Challenges we ran into

Making AI the core part of the system, not just an add-on Writing effective prompts for accurate responses Managing multiple features within limited time Keeping the UI simple and easy to use

Accomplishments that we're proud of

Built a platform that combines multiple preparation tools in one place Successfully used Gemini across all major features Created a clean and user-friendly interface Developed a solution that directly helps students

What we learned

How to integrate AI into real-world applications Importance of prompt design for better results Building scalable full-stack applications Focusing on user needs while designing features

What's next for PrepAI – Smart Placement & Exam Assistant

Add a progress tracking dashboard Improve weak-topic detection using data Add multi-language support Integrate with college platforms and job portals Expand to support more domains

Built With

• express.js
• firebase
• google-gemini-api
• google-stitch
• javascript
• node.js
• react.js