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128 algorithm visualizations and 176 system design articles — all in one place. Keep your streak going and land that offer.
81
Problems
with visualizations
176
SD Articles
system design topics
16
Categories
DSA topic areas
10
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DSA Problems
Step-by-step visual walkthroughs of 128 algorithm problems.
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System Design
Master 176 system design concepts with interactive diagrams.
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Playground
Build and test custom algorithm visualizations interactively.
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Browse by Category
Two Pointers
8 lessons
Sliding Window
6 lessons
Stack
7 lessons
Linked List
6 lessons
Binary Search
6 lessons
Heap / PQ
3 lessons
Depth-First Search
12 lessons
Breadth-First Search
9 lessons
Backtracking
5 lessons
Graphs
4 lessons
Dynamic Prog.
12 lessons
Greedy
2 lessons
Trie
3 lessons
Prefix Sum
3 lessons
Intervals
5 lessons
Matrices
3 lessons
System Design Chapters
Introduction to System Design
2 lessons
Core Concepts
8 lessons
Networking
7 lessons
Load Balancing
4 lessons
API Fundamentals
14 lessons
Communication Patterns
11 lessons
Caching
11 lessons
Databases
14 lessons
Database Scaling Techniques
10 lessons
Storage Systems
4 lessons
Tradeoffs
6 lessons
Distributed System Fundamentals
17 lessons
Distributed Transactions
5 lessons
Data Structures for Scale
12 lessons
Architectural Patterns
9 lessons
Microservices Patterns
8 lessons
Big Data Processing
9 lessons
Deployment Patterns
9 lessons
Observability
8 lessons
Advanced Security
6 lessons
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