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System Design

HLD + LLD case studies, scaling, distributed systems.

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System Design Learning Paths

Choose your learning style — watch video courses, read structured notes, or practice interview questions.

System Design Video Full Course
VIDEO COURSES

System Design Video Full Course

Complete video lectures for System Design — HLD fundamentals, scaling, caching, load balancing, distributed systems and real-world case studies.

System Design Full Notes
NOTES & GUIDES

System Design Full Notes

Comprehensive notes, PDF books, LLD guides and theory resources. Alex Xu's insider guide, HelloInterview LLD series and curated interview Q&A.

System Design Interview Prep
PRACTICE & INTERVIEW

System Design Interview Prep

Curated system design interview questions, LLD practice problems and real-world case studies. Practice designing scalable systems for MAANG.

Topic-wise Resources

Detailed resources organized by system design topic — fundamentals, scaling, case studies and LLD.