PrepWise: AI Mock Interview Practice Platform

Overview

PrepWise - An AI-powered interview prep platform where users can generate interviews, talk to an AI interviewer, and get detailed feedback instantly.

What Users Can Do

• Customize Interviews: Generate custom interviews by selecting role, experience level, interview type, and tech stack.
• Take Real-time Voice Interviews: Interact with an AI interviewer using Vapi.
• Receive Structured Feedback: Get category-wise scores, strengths, and improvement areas.
• Review Interview History: Track progress over time.
• Browse Available Interviews: Practice from shared interview sets.

Why I built this

I built this platform to solve a fundamental issue I faced while studying:

• Consistent mock interview practice is hard without mentors or peer availability.
• Generic preparation does not provide personalized and actionable feedback quickly.

Tech Stack

• Next.js
• TypeScript
• React
• Tailwind CSS
• Shadcn UI
• Firebase
• Google Gemini
• Vapi SDK
• Zod
• React Hook Form

After launch & Impact

• Enabled an end-to-end interview preparation flow from interview generation to feedback in one place.
• Reduced the manual effort needed to practice and evaluate mock interviews.
• Improved confidence-building with repeatable and structured interview simulations.

Future Plans

• Add performance trend analytics across multiple interviews.
• Introduce adaptive question difficulty based on user performance.
• Add company-specific interview packs and role-focused preparation paths.