Stop Grinding, Start Seeing Patterns
Structured lessons that teach the thinking behind each pattern. Twelve practice modes, AI coaching, and spaced repetition — so you actually retain what you study.
Free during beta. Full access. No credit card required.
- 1,000+
- Problems
- 500+
- Companies
- 12
- Practice Modes
- 10
- Languages
Code Editor
Problem Bank
Why I built this
When I was preparing for coding interviews, I did what everyone does — opened a problem bank and started grinding. Hundreds of problems. No structure. No feedback beyond pass or fail. I'd solve a problem, forget the pattern a week later, and feel like I was starting over.
The tools I found were either problem banks with no teaching, or courses with no hands-on practice. Nothing combined both. Nothing told me why a solution works, helped me retain it, or adapted to how I learn.
So I built DeepRep — the platform I wish I had. Structured lessons that explain the thinking behind each pattern. Twelve practice modes so you engage with problems differently. An AI coach that nudges you without spoiling the answer. Spaced repetition so what you learn actually stays with you.
Whether you're a student facing your first technical interview or an engineer switching jobs with limited time — DeepRep meets you where you are.
Learn Patterns, Not Just Solutions
Every feature exists to help you understand and retain — not just pass.
Know What to Study Next
A structured path from arrays to dynamic programming — no guessing what to learn next.
Multiple Ways to Solve Every Problem
Write code, arrange shuffled lines, fill in blanks, fix bugs, or review solutions — multiple modes that build understanding from different angles.
Filter by Company
Practice problems asked at 500+ companies including Amazon, Google, Meta, and Microsoft. See which companies ask each problem and how frequently.
Full Interview Simulation
Run a complete Interview Loop — a 45-minute coding round, 25-minute system design, and 15-minute behavioral round — with a unified AI debrief.
Guidance Without Spoilers
An AI coach that hints, explains mistakes, and reviews your code — without giving the answer away.
Remember What You Learn
Spaced repetition resurfaces concepts at the right time so you retain patterns weeks later.
Personalized Study Plan
Set your interview date and pick your topics. The Prep Planner builds a daily schedule tailored to your timeline and tracks your progress.
Stay Consistent
Daily problems and timed challenges build the habit. Short enough for a lunch break, tough enough to keep you sharp.
Track Real Progress
XP, levels, streaks, achievements, and a Readiness Score make growth visible — so you know exactly how interview-ready you are.
How It Works
From your first problem to interview-ready in four steps.
Pick a Topic
Start with arrays or jump to any topic — no prerequisites, no locked content.
Learn & Practice
Read the pattern breakdown, then solve the problem your way — with multiple practice modes that build understanding from different angles.
Get Feedback
Your AI coach gives hints without spoiling the answer and reviews your solution in real time.
Level Up
Earn XP, maintain streaks, and watch your skill tree fill up as patterns click into place.
Twelve Practice Modes for Coding Interviews
From writing code to simulating a full interview — each mode builds a different skill.
Problem Solving
Practice & Review
Interview Simulation
Your Next Interview Doesn't Have to Feel Like a Gamble
Pick a topic, solve your first problem, and get AI feedback — all in under five minutes.
Free during beta. No credit card required.