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freeCodeCamp

System Design for Beginners Course

via freeCodeCamp

Overview

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Dive into a comprehensive course on system design fundamentals for software developers and engineers. Explore essential concepts like requirement selection, API design, database design, network protocols, fault tolerance, and design trade-offs. Learn how to build large-scale distributed systems capable of handling millions of concurrent users. Examine a live streaming system design case study, covering high-level architecture and low-level implementation details. Practice creating UML diagrams, designing video players, and coding server components. Gain insights into technologies like WebRTC, MPEG DASH, HLS, and content delivery networks. Access additional resources for further learning in distributed systems and system design.

Syllabus

⌨️ What is System Design
⌨️ Design Patterns
⌨️ Live Streaming System Design
⌨️ Fault Tolerance
⌨️ Extensibility
⌨️ Testing
⌨️ Summarizing the requirements
⌨️ Core requirement - Streaming video
⌨️ Diagramming the approaches
⌨️ API Design
⌨️ Database Design
⌨️ Network Protocols
⌨️ Choosing a Datastore
⌨️ Uploading Raw Video Footage
⌨️ Map Reduce for Video Transformation
⌨️ WebRTC vs. MPEG DASH vs. HLS
⌨️ Content Delivery Networks
⌨️ High-Level Summary
⌨️ Introduction to Low-Level Design
⌨️ Video Player Design
⌨️ Engineering requirements
⌨️ Use case UML diagram
⌨️ Class UML Diagram
⌨️ Sequence UML Diagram
⌨️ Coding the Server
⌨️ Resources for System Design

Taught by

freeCodeCamp.org

Reviews

4.6 rating, based on 83 Class Central reviews

Start your review of System Design for Beginners Course

  • This beginner system design course is clear and well-structured, covering fundamentals like scalability, databases, caching, and APIs with practical examples. Highly recommended for newcomers wanting to understand how real-world systems are built.
  • This course is very helpful for beginners who want to understand system design concepts from scratch. The explanations are clear, simple, and well structured. It covers important fundamentals with real-world examples
  • Profile image for Arjun B
    Arjun B
    2
    Beginner-friendly with clear explanations
    Uses one example (live streaming app)
    Covers high-level design → low-level design → UML diagrams → code
    Explains practical topics: network protocols, databases, etc.
  • Profile image for Bhyresh B S
    Bhyresh B S
    1
    The System Design for Beginners course on freeCodeCamp is an outstanding introductory resource for anyone looking to understand large-scale systems. Gaurav Sen does a fantastic job of breaking down complex topics like scalability, load balancing, and database sharding into simple, digestible concepts. I particularly enjoyed the live-streaming case study, which brilliantly connected theoretical design principles to real-world applications like Netflix. The inclusion of UML diagrams and protocol comparisons like HLS and WebRTC provided great technical depth for a beginner level. It’s a solid foundation that built my confidence for more advanced architectural studies. Highly recommended!
  • Profile image for Diva Dewantara
    Diva Dewantara
    Overall, the System Design for Beginners course by freeCodeCamp provides a strong and accessible foundation for understanding how large-scale systems are designed and built. It successfully breaks down complex concepts into simpler explanations, mak…
  • Profile image for LOCHANA K
    LOCHANA K
    1
    The “System Design for Beginners” course is very helpful for students who are new to system design. The concepts are explained in a clear and simple way with the help of diagrams and real-life examples like video streaming platforms. Topics such as API design, client–server interaction, and databases are easy to understand even without prior experience. The course progresses step by step, which makes learning comfortable and less confusing. Overall, this course helped me build a basic understanding of how real-world systems are designed and is a good starting point for students interested in software engineering and system design.
  • Profile image for M R Deepika
    M R Deepika
    1
    The System Design for Beginners course by freeCodeCamp is an excellent introduction to system design concepts. The explanations are clear, simple, and well-structured, making it easy for beginners to understand topics like scalability, databases, APIs, and real-world system components. The examples are practical and help bridge the gap between theory and real applications. I especially liked how complex ideas were broken down step by step without overwhelming the learner. This course has really improved my confidence in understanding system design fundamentals and is very useful for students and aspiring software engineers.
  • Profile image for Meilisa Patricia
    Meilisa Patricia
    This course provides a well-structured and comprehensive learning experience. The materials are organized in a logical sequence, starting from basic concepts and gradually progressing to more advanced topics, making it easy for learners to follow al…
  • Profile image for Pranav Prasanna Krishna
    Pranav Prasanna Krishna
    This course on System Design and Agile Methodologies was a solid learning experience that balanced theory with real-world application. The system design modules broke down complex architecture concepts into clear, structured explanations, covering s…
  • Profile image for Konrad Malinowski
    Konrad Malinowski
    Completed the System Design for Beginners course, gaining a solid understanding of scalable software architecture and distributed systems fundamentals.

    Key topics included system design principles, scalability, load balancing, caching, databases, microservices, API design, and reliability. Developed the ability to analyze system requirements, identify bottlenecks, and design high-level architectures for modern web applications.
  • Profile image for ARNAV DESHMUKH
    ARNAV DESHMUKH
    This course offers a clear and practical introduction to the fundamentals of designing scalable and reliable software systems. It starts with basic concepts such as client–server architecture and gradually moves toward more . The explanations are s…
  • Profile image for Gabriel Minetto
    Gabriel Minetto
    Good introduction to System Design. I really liked that you explained with an example, and not just showing concepts. Thank you
  • Profile image for Nahid Islam
    Nahid Islam
    The System Design for Beginners course by freeCodeCamp is an excellent starting point for anyone looking to understand the fundamentals of system design. The lessons are clear, well-structured, and beginner-friendly, making complex concepts like scalability, load balancing, databases, and caching easy to grasp. The practical examples and real-world scenarios helped me connect theory to practice, and the course pacing allows learners to absorb the material without feeling overwhelmed. Highly recommended for aspiring software engineers and anyone preparing for system design interviews.
  • Profile image for Akil Pranav G
    Akil Pranav G
    This course exceeded my expectations in many ways. The lessons were clearly structured, easy to follow, and thoughtfully organized to build understanding step by step. I appreciated how the instructor explained complex topics in a simple, practical way without oversimplifying the material. The real-world examples and hands-on exercises made the content engaging and helped reinforce what I learned. I also found the pacing to be just right, allowing enough time to absorb key concepts. Overall, this course provided valuable knowledge and practical skills that I feel confident applying in real-world situations. I would highly recommend it to others.
  • Profile image for Lakshya Khatokar
    Lakshya Khatokar
    The System Design for Beginners Course by freeCodeCamp is an excellent starting point for anyone new to system design. It explains core concepts like scalability, load balancing, databases, caching, APIs, and distributed systems in a simple and structured manner. The course uses practical examples and real-world scenarios to make complex ideas easier to understand. The explanations are beginner-friendly, making it suitable for students and aspiring backend developers. It also helps build foundational knowledge required for technical interviews. Overall, the course provides clear guidance, strong fundamentals, and confidence to explore more advanced system design topics in the future.
  • Shaurya Sharma
    The System Design for Beginners course is an excellent starting point for anyone who is new to system design concepts. The course explains complex ideas in a simple and easy to understand manner, making it ideal for students and early career develop…
  • Profile image for KHANDAGALE PARTH NANDKUMAR
    KHANDAGALE PARTH NANDKUMAR
    This course offers a clear and structured introduction to system design concepts, making it ideal for beginners. The instructor explains complex topics in a simple, easy-to-understand manner and supports them with practical examples. I especially appreciated how the lessons build progressively, helping reinforce understanding without feeling overwhelming. The real-world scenarios and diagrams make abstract ideas more concrete and relatable. It’s a great starting point for anyone preparing for technical interviews or wanting to strengthen their backend knowledge. Overall, it’s informative, well-organized, and highly recommended for learners beginning their system design journey.
  • Profile image for D Rashmi Ranjan
    D Rashmi Ranjan
    Explanation was superb and i thing some concepts are missing but it is best for beginner and who want to upgrade from beginner to mid level
  • Profile image for Rohith P Hegde
    Rohith P Hegde
    I recently completed this System Design course, and it exceeded my expectations. The content is well-structured, starting with core concepts and gradually moving toward advanced topics like live streaming architecture, fault tolerance, API and datab…
  • Profile image for Gujjula Venkat Sashank
    Gujjula Venkat Sashank
    This System Design for Beginners course by freeCodeCamp is an excellent starting point for anyone who wants to understand how large-scale systems are built. The instructor explains complex concepts like scalability, load balancing, databases, caching, and system architecture in a very simple and beginner-friendly way. The real-world examples make it easier to connect theory with practical applications. I especially appreciated how the course breaks down topics step by step without overwhelming learners. The content is well-structured, clear, and highly informative. It has significantly improved my understanding of backend architecture and distributed systems. I highly recommend this course to students and aspiring software engineers.

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