LeetCode Meets Your IDE. Level Up While You Build.
Challenges, courses, interview prep, and contests. All inside your IDE with AI-powered hints, real-time feedback, and a progression system that tracks your growth.
Level 23
Senior Developer
18,340 / 20,000 XP
1,660 XP to Level 24
Four Difficulty Tiers
From fundamentals to distributed systems. Every tier earns more XP, unlocks harder challenges, and pushes you closer to mastery.
Fundamentals, syntax, basic data structures. Build confidence and earn your first badges.
Examples
Algorithms, design patterns, API integration. Where most real-world skills are built.
Examples
System design, optimization, concurrency. Challenges that separate juniors from seniors.
Examples
Distributed systems, compiler design, kernel-level problems. For those who want to master it all.
Examples
15 Challenge Categories
Algorithms, system design, frontend, devops, and more. Each category has its own progression track and skill radar segment.
Daily Challenges and Streak System
A new challenge every day, matched to your skill level. Build streaks to earn multiplier bonuses. Freeze tokens protect your streak on rest days.
April 2026
Guided Learning Paths
Codecademy-style courses built into your IDE. Follow structured paths from beginner to advanced with hands-on exercises that run in your actual editor.
Full-Stack Foundations
42 lessons
Not started
System Design Mastery
28 lessons
Not started
AI-Assisted Development
18 lessons
Not started
Interview Prep Tracks
Curated tracks for FAANG, Blind 75, and startup interviews. Timed practice, solution walkthroughs, and progress tracking.
FAANG Prep
Arrays, Trees, Graphs, DP, System Design
Blind 75
The essential 75 problems every engineer should know
Startup Ready
Full-stack, API design, deployment, rapid prototyping
Weekly Contests
Every Saturday, a new timed contest with 4 challenges of escalating difficulty. Compete globally, earn bonus XP, and climb the seasonal rankings.
Contest #14
Saturday, April 11 at 10:00 UTC
Leaderboards
Global, regional, and friend leaderboards. Filter by category, difficulty, or time period. See where you rank and who to beat next.
50 Levels. Skill Radar. Badges.
Every challenge, course, and contest feeds into your profile. A skill radar shows your strengths across all 15 categories. Badges mark milestones. Level 50 means you have truly mastered the craft.