https://github.com/vlad1343/mentra
Mentra is an AI-powered interview preparation platform that helps students and graduates practice real-world interviews through voice or text input. It provides instant, privacy-first AI feedback, gamified progression with badges and XP, and role-specific interview scenarios — all free and accessible.
https://github.com/vlad1343/mentra
ai date-fns gamification hackathon-2025 hackathon-project interview-preparation openai privacy react supabase tts typescript web-application web-speech-api whysper zod-validation zustand
Last synced: 3 months ago
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Mentra is an AI-powered interview preparation platform that helps students and graduates practice real-world interviews through voice or text input. It provides instant, privacy-first AI feedback, gamified progression with badges and XP, and role-specific interview scenarios — all free and accessible.
- Host: GitHub
- URL: https://github.com/vlad1343/mentra
- Owner: Vlad1343
- Created: 2025-10-30T13:36:48.000Z (8 months ago)
- Default Branch: main
- Last Pushed: 2025-12-15T22:23:03.000Z (6 months ago)
- Last Synced: 2025-12-19T06:46:43.439Z (6 months ago)
- Topics: ai, date-fns, gamification, hackathon-2025, hackathon-project, interview-preparation, openai, privacy, react, supabase, tts, typescript, web-application, web-speech-api, whysper, zod-validation, zustand
- Homepage: https://mentrahackathon.lovable.app/
- Size: 1.98 MB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# **Mentra: AI-Powered Interview Practice Platform**
> 🎓 **Honourable Mention** at the **Back-to-Uni Hackathon 2025**
**Live Demo:** [https://mentrahackathon.lovable.app/](https://mentrahackathon.lovable.app/)
---
## 🚀 Overview
**Mentra** is an innovative, **AI-powered interview preparation platform** designed to close the **53% interview confidence gap** among students and graduates.
The platform provides **realistic, role-specific AI interview simulations** with **voice or text-based input**, **instant feedback**, and **gamified progression** — all under a **privacy-first, GDPR-compliant architecture**.
---
## 💡 Core Features
### 🗣️ AI Interview Practice
- Practice interviews across six professional domains: **Technical, Data Science, Product, Marketing, Sales, and HR**.
- Choose **voice** or **text** input for accessibility and preference.
- Receive **real-time AI feedback** on clarity, confidence, and structure.
### 🤖 AI Feedback Engine
- Dynamic evaluation powered by **OpenRouter (GPT/Gemini)**.
- Scores answers on multiple criteria (delivery, structure, confidence).
- Feedback generated in seconds — no user data retained or stored.
### 🎮 Gamification System
- Earn **XP, badges, and streaks** through consistent practice.
- Level up with visual celebrations and confetti animations.
- Review past performance via local progress tracking.
### 🔒 Privacy by Design
- **Audio never leaves the browser.**
- No storage of recordings, transcripts, or personal identifiers.
- Only anonymous statistics (XP, badges, scores) stored in `localStorage`.
- Fully compliant with **GDPR Article 25 (Privacy by Design)**.
---
## 🏗️ Tech Stack
| Layer | Technologies |
|:------|:--------------|
| Frontend | React, TypeScript, Vite |
| Styling | Tailwind CSS, shadcn/ui, Framer Motion |
| State Management | Zustand |
| Backend & API | Supabase, Edge Functions |
| AI Integration | OpenRouter (GPT, Gemini) |
| Speech Processing | Web Speech API |
| Utilities | Zod, Recharts, Lucide |
---
## 🧠 Why Mentra Stands Out
✅ **Multimodal input** — voice or text-based practice
✅ **Privacy-first by architecture** — no audio storage
✅ **Gamified experience** with badges, XP, and streaks
✅ **Role-specific interview scenarios** for realistic practice
✅ **Ethical AI evaluation** — unbiased, inclusive, accent-agnostic
✅ **Zero cost barrier** — professional-grade training accessible to all
---
## 🏅 Badge & Progression System
| **Badge** | **Criteria** |
|------------|--------------|
| Getting Started | Complete your first session |
| STAR Pro | Apply STAR method in at least two answers |
| Concise Communicator | Keep responses under 90 seconds |
| Resilient | Complete 10+ questions in one session |
| Data-Driven | Reference metrics or data in responses |
| 3-Day Streak | Practice for three consecutive days |
| Week Warrior | Practice for seven consecutive days |
| Perfectionist | Score 95+ in one session |
---
## 🌐 User Journey
1. **Landing Page** – Overview and “Start Practicing” CTA
2. **Role Selection** – Choose from six professional tracks
3. **Avatar Selection** – Pick interviewer personality and tone
4. **Session Setup** – Configure difficulty, style, and duration
5. **Interview Simulation** – Respond via voice or text
6. **Feedback Summary** – View AI evaluation and gain XP
---
## 🧩 Visual Overview
### 🏠 Landing Page
*The starting point for users — introducing Mentra’s value and guiding them to start practicing.*
### 📈 Tracking Progress
*Interface showing user progression, XP accumulation, streaks, and overall session history.*
### 🎤 Interview Simulation
*Interactive AI interview interface supporting both voice and text responses for realistic practice.*
### 📊 Scoring
*AI-generated performance summary including clarity, confidence, structure scoring, and detailed feedback per question.*
### 🏅 Badges & Feedback
*Gamified learning interface displaying earned badges, XP, and streaks to encourage consistent practice.*