System Design Resources

Visual system design learning by Alex Xu. Content from 7 best-selling books covering system design, OOP design, ML systems, and generative AI.

Best for: FAANG-level interview prep with visual explanations

Home of the original "Grokking the System Design Interview" course. Patterns-based approach built by engineers from Google, Meta, Amazon.

Best for: Structured, pattern-based interview preparation

AI-powered interactive learning with 800+ hands-on courses and browser-based coding environments. Hosts its own Grokking System Design version.

Best for: Hands-on learners who prefer interactive coding over video

Interview prep with structured courses and peer mock interviews via Pramp. AI-graded system design mocks with transcripts.

Best for: Combining learning content with peer mock interview practice

120+ system design problems with AI feedback and scoring. Think LeetCode, but for system design.

Best for: Active practice and drilling system design problems

"System Design in a Hurry" curriculum built by FAANG hiring managers. 27 guided practice questions and 5,000+ recently-asked interview questions.

Best for: Senior engineers who need targeted, efficient prep

175+ video system design course by Gaurav Sen (ex-Google, ex-Uber). Includes live doubt-solving classes and online practice.

Best for: Visual learners who like Gaurav Sen's teaching style

Comprehensive interview prep covering system design (HLD), low-level design (LLD), and coding patterns. Popular newsletter included.

Best for: All-in-one interview prep covering design and coding

The "Bible of system design" by Martin Kleppmann & Chris Riccomini. Significantly revised 2nd edition (Feb 2026) covering data storage, replication, distributed systems, and stream processing.

Best for: Deep understanding of distributed systems fundamentals

Step-by-step framework for answering system design interviews by Alex Xu. 16 real-world system designs with diagrams.

Best for: Practical, interview-focused preparation

Advanced follow-up by Alex Xu & Sahn Lam. Covers proximity service, Google Maps, payment systems, hotel reservations, and more.

Best for: Senior-level interviews after finishing Vol. 1

Practical guide by Roberto Vitillo covering network architecture, data consistency, scalability, and reliability patterns.

Best for: Concise alternative to DDIA with practical focus

By Mark Richards & Neal Ford. Covers architectural styles, quality attributes, communication patterns, and reasoning about systems.

Best for: Engineers transitioning into architecture roles

Trade-off decisions in distributed systems — coupling vs. cohesion, data ownership in microservices, evolving architectures safely.

Best for: Experienced engineers dealing with real-world complexity

The most popular system design resource on GitHub (293k+ stars). Comprehensive guide covering scalability, availability, performance. Includes Anki flashcards.

Best for: Everyone — the best free starting point

Curated collection of free resources organized by topic — backend, distributed systems, high-level design, interview prep.

Best for: Finding topic-specific free learning materials

Learn how to design systems at scale. 39k+ stars. Five structured chapters covering storage, clustering, databases, and distributed systems.

Best for: Beginners wanting a structured free introduction

Free blog covering system design principles, interview guides, platform reviews, and distributed systems concepts.

Best for: Quick reference guides in blog format

System design education from an ex-Google engineer. Database sharding, consistent hashing, CAP theorem, and full design walkthroughs (WhatsApp, Instagram, Uber).

Best for: Beginners and intermediate engineers — clear analogies

Polished animated explanations of how real-world systems work by Alex Xu.

Best for: Visual learners who want well-produced content

Deep technical content on database internals, networking protocols, backend performance. Live coding and terminal demos.

Best for: Understanding HOW things work under the hood

Beginner-friendly animated whiteboard explanations of microservices, distributed systems, and cloud architecture.

Best for: Beginners who find other channels overwhelming

Weekly system design newsletter with visual explanations. 1M+ subscribers. Free tier available.

Best for: Digestible weekly system design content

Sunday newsletter curating the best architecture news from the web by Mahdi Yusuf (Senior Staff Engineer at 1Password).

Best for: Weekly digest of architecture content

Long-running blog covering how real-world systems scale. Case studies from major tech companies.

Best for: Learning from real production scaling stories

Articles, podcasts, and trend reports on software architecture. Publishes annual Architecture and Design Trends Report.

Best for: Staying current on industry architecture trends

Curated list of engineering blogs from Netflix, Uber, Meta, Stripe, Cloudflare, and 100+ more companies.

Best for: Learning how systems work at massive scale

Anonymous mock interviews with senior FAANG engineers. Gold standard for expert feedback. Also offers an AI Interviewer with 200+ problems.

Best for: Senior engineers who want expert-quality feedback

Free peer-to-peer mock interviews. Get matched with another engineer to practice system design together.

Best for: Volume practice on a budget

150+ system design problems with AI mock interviews. Real-time AI follow-up questions, leaderboards, and performance analytics.

Best for: Grinding system design problems like LeetCode

Expert coaching marketplace connecting you with experienced interviewers from top tech companies. One-on-one sessions.

Best for: Personalized one-on-one expert coaching

In-depth daily discussions on software engineering including system design, distributed systems, and industry trends.

Best for: Broad technical exposure beyond interview prep

Architecture and design focused episodes with industry expert interviews.

Best for: Hearing from real practitioners about architecture

Goes chapter-by-chapter through architecture books with the books' actual authors. Hosted by Mark Richards.

Best for: Deep-diving into architecture books with author commentary

Open-source collaborative whiteboard with a hand-drawn aesthetic. No sign-up required. Supports text-to-diagram via Mermaid.

Best for: System design interviews and quick sketches

Free, open-source diagramming tool with extensive shape libraries. Integrates with Confluence, Google Drive, GitHub.

Best for: Professional architecture diagrams

Diagram-as-code: write text descriptions, get rendered diagrams. Built into GitHub Markdown. Supports flowcharts, sequence diagrams, ER diagrams, and more.

Best for: Version-controlled diagrams in Markdown and docs

AI-powered technical design platform with DiagramGPT — generate architecture diagrams from natural language prompts.

Best for: AI-assisted diagramming for engineering teams