# Crackr AI

> The part LeetCode can't teach you. An AI-powered interview practice platform with voice conversations, live coding, and instant scorecards.

Crackr AI simulates real technical coding interviews end-to-end. Users pick a company, topic, and difficulty level, then practice live with an AI voice interviewer that asks questions, responds to code in real time, pushes back on weak answers, gives hints on request, and delivers a detailed scorecard at the end.

## Key Features

- **Voice AI Interviewer** — Real-time two-way voice conversation. Speak naturally while coding, just like a real phone screen.
- **Live Code Editor** — Monaco-based editor (same as VS Code) supporting 16 languages: Python, JavaScript, TypeScript, Java, C++, Go, Rust, C#, C, Kotlin, Swift, Dart, PHP, Ruby, Scala, Elixir.
- **Instant Scorecards** — Hire/no-hire verdict with scores across problem solving, communication, code quality, complexity analysis, and speed. Annotated code review included.
- **458+ Company Questions** — Practice questions tagged to Google, Meta, Amazon, Apple, Microsoft, and hundreds more.
- **Study Plans** — Follow curated paths: Blind 75, Grind 75, or NeetCode 150.
- **Credit-Based Pricing** — No subscriptions. Buy credits, use whenever. Credits never expire. Starting under $2 per interview.

## Key Pages

- [Home](https://crackr.dev/): Overview of the platform.
- [Company Questions](https://crackr.dev/companies): Browse interview questions by company.
- [Study Plans](https://crackr.dev/study-plans): Curated problem sets (Blind 75, Grind 75, NeetCode 150).
- [DSA Tracker](https://crackr.dev/dsa-tracker): Track your progress across data structures and algorithms.
- [LeetCode Patterns](https://crackr.dev/leetcode-patterns): Common coding interview patterns.
- [Algorithm Visualizers](https://crackr.dev/visualize): Interactive visualizations for sorting, trees, graphs, and more.
- [Interview Guides](https://crackr.dev/interview-guides): Preparation guides for specific companies.
- [Blog](https://crackr.dev/blog): Articles on interview prep, coding, and career advice.
- [Cheat Sheets](https://crackr.dev/cheat-sheets): Quick references for Big-O, system design, Linux, and more.
- [Jobs Board](https://crackr.dev/jobs): FAANG jobs, remote positions, and tech internships.
- [Tutorials](https://crackr.dev/tutorials): Step-by-step coding tutorials.
- [Contact](https://crackr.dev/contact): Get in touch at hi@crackr.dev.
- [Privacy Policy](https://crackr.dev/privacy): How user data is collected and used.
- [Terms of Service](https://crackr.dev/terms): Platform terms and conditions.

## How It Works

1. **Configure** — Pick a target company, choose topics (arrays, graphs, dynamic programming, etc.), set difficulty and session length (15, 30, or 60 minutes).
2. **Interview** — The AI interviewer conducts the session in real time via voice. Write code in the browser editor, run it against test cases, and talk through your approach out loud.
3. **Scorecard** — Immediately after the session, receive a structured scorecard: hire/no-hire verdict, dimension scores, written feedback, and annotated code review.

## Technology

- AI interviewer powered by Claude (Anthropic)
- Real-time voice via LiveKit WebRTC
- Speech-to-text via Deepgram
- Text-to-speech via ElevenLabs
- Code editor: Monaco (VS Code engine)

## Contact

- Email: hi@crackr.dev
- Website: https://crackr.dev

Last updated: 2026-04-03