SysCraft: Learn system deisgn
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About this app
System design is the defining skill that elevates software engineers from junior developers to senior and staff architects. SysCraft is your interactive guide to master system design, software architecture, high level design (HLD), and low level design (LLD) for real-world production systems and technical interviews.
Whether you are preparing for a system design interview at top tech companies or architecting distributed systems on the job, SysCraft provides structured system design lessons, visual architecture diagrams, and concrete trade-off comparisons.
MASTER HIGH LEVEL SYSTEM DESIGN (HLD)
Build intuition for scalable cloud architecture and large-scale distributed systems:
• Networking & Protocols: Client-server architecture, TCP/IP, DNS resolution, HTTP/3, and REST vs GraphQL vs gRPC protocols in distributed networks.
• Distributed Scaling: Horizontal scaling, stateless compute tiers, and session offloading with Redis.
• Microservices Architecture: Monolith vs microservices, API gateways, service mesh, and event-driven Saga transaction patterns.
• Databases & Sharding: SQL vs NoSQL, B+ Tree vs LSM-Tree storage engines, primary-replica replication, and database sharding with consistent hashing rings.
• Caching & Load Balancing: Cache-aside and write-behind patterns, LRU/LFU cache eviction, Layer 4 vs Layer 7 load balancers, and global CDNs.
• Fault-Tolerant System Design: Message queues (Kafka vs RabbitMQ), partitioned logs, CAP theorem (PACELC), circuit breakers, and exponential backoff with jitter.
MASTER LOW LEVEL DESIGN (LLD) & OOP
Bridge high-level architectural vision with clean object-oriented code:
• Object-Oriented Principles: Encapsulation invariants, abstraction, composition over inheritance, and polymorphism with dynamic dispatch.
• SOLID Principles: Refactoring walkthroughs for Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion.
• Pragmatic Heuristics: Applying DRY, KISS, and YAGNI to keep your codebase clean without over-engineering.
• GoF Design Patterns: Creational (Builder, Factory), Structural (Adapter, Decorator, Facade), and Behavioral patterns (Strategy, Observer, State, Command) backed by real code.
• UML Modeling: Class diagrams and sequence interaction flows to communicate technical architecture decisions with precision.
INTERACTIVE DIAGRAMS & MENTAL MODELS
• Architecture Diagrams: Native visual system design diagrams illustrating load balancers, caching tiers, and distributed database clusters.
• Real-World Analogies: Explain Like I'm 10 (ELI10) mental models that make complex system design concepts intuitive before diving into technical depth.
• Trade-Off Matrices: Side-by-side comparison tables analyzing latency, throughput, consistency, and operational complexity across architecture alternatives.
ENGINEERED FOR FOCUSED STUDY
• 100% Offline-First: Study system design anywhere—during flights, commutes, or off-grid study sessions.
• Zero Account Required: No mandatory logins, signups, or personal tracking.
• Zero Distractions: No banner ads, popup interruptions, or algorithmic feeds.
• Paper & Ink Aesthetic: High-contrast typography and dark mode optimized for long technical reading sessions.
• Transparent Access: Core system design lessons are free forever. Unlock complete lifetime access with a single purchase—no recurring subscriptions.
Master system design, ace your software architecture interviews, and build scalable distributed systems with SysCraft.
Whether you are preparing for a system design interview at top tech companies or architecting distributed systems on the job, SysCraft provides structured system design lessons, visual architecture diagrams, and concrete trade-off comparisons.
MASTER HIGH LEVEL SYSTEM DESIGN (HLD)
Build intuition for scalable cloud architecture and large-scale distributed systems:
• Networking & Protocols: Client-server architecture, TCP/IP, DNS resolution, HTTP/3, and REST vs GraphQL vs gRPC protocols in distributed networks.
• Distributed Scaling: Horizontal scaling, stateless compute tiers, and session offloading with Redis.
• Microservices Architecture: Monolith vs microservices, API gateways, service mesh, and event-driven Saga transaction patterns.
• Databases & Sharding: SQL vs NoSQL, B+ Tree vs LSM-Tree storage engines, primary-replica replication, and database sharding with consistent hashing rings.
• Caching & Load Balancing: Cache-aside and write-behind patterns, LRU/LFU cache eviction, Layer 4 vs Layer 7 load balancers, and global CDNs.
• Fault-Tolerant System Design: Message queues (Kafka vs RabbitMQ), partitioned logs, CAP theorem (PACELC), circuit breakers, and exponential backoff with jitter.
MASTER LOW LEVEL DESIGN (LLD) & OOP
Bridge high-level architectural vision with clean object-oriented code:
• Object-Oriented Principles: Encapsulation invariants, abstraction, composition over inheritance, and polymorphism with dynamic dispatch.
• SOLID Principles: Refactoring walkthroughs for Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion.
• Pragmatic Heuristics: Applying DRY, KISS, and YAGNI to keep your codebase clean without over-engineering.
• GoF Design Patterns: Creational (Builder, Factory), Structural (Adapter, Decorator, Facade), and Behavioral patterns (Strategy, Observer, State, Command) backed by real code.
• UML Modeling: Class diagrams and sequence interaction flows to communicate technical architecture decisions with precision.
INTERACTIVE DIAGRAMS & MENTAL MODELS
• Architecture Diagrams: Native visual system design diagrams illustrating load balancers, caching tiers, and distributed database clusters.
• Real-World Analogies: Explain Like I'm 10 (ELI10) mental models that make complex system design concepts intuitive before diving into technical depth.
• Trade-Off Matrices: Side-by-side comparison tables analyzing latency, throughput, consistency, and operational complexity across architecture alternatives.
ENGINEERED FOR FOCUSED STUDY
• 100% Offline-First: Study system design anywhere—during flights, commutes, or off-grid study sessions.
• Zero Account Required: No mandatory logins, signups, or personal tracking.
• Zero Distractions: No banner ads, popup interruptions, or algorithmic feeds.
• Paper & Ink Aesthetic: High-contrast typography and dark mode optimized for long technical reading sessions.
• Transparent Access: Core system design lessons are free forever. Unlock complete lifetime access with a single purchase—no recurring subscriptions.
Master system design, ace your software architecture interviews, and build scalable distributed systems with SysCraft.
Master System Design, HLD, LLD & software architecture for tech interviews.
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What’s new
Welcome to SysCraft 1.0.0 — Master System Design & Software Architecture!
What's New in this Release:
• High-Level Design (HLD): Microservices, load balancing, sharding, caching, and event-driven pipelines.
• Low-Level Design (LLD): OOP principles, SOLID walkthroughs, and GoF design patterns.
• Interactive Architecture Diagrams: Visual multi-tier topologies.
• ELI10 Mental Models: Intuitive analogies and trade-off comparison matrices.
• 100% Offline-First: Study anywhere with zero tracking.
What's New in this Release:
• High-Level Design (HLD): Microservices, load balancing, sharding, caching, and event-driven pipelines.
• Low-Level Design (LLD): OOP principles, SOLID walkthroughs, and GoF design patterns.
• Interactive Architecture Diagrams: Visual multi-tier topologies.
• ELI10 Mental Models: Intuitive analogies and trade-off comparison matrices.
• 100% Offline-First: Study anywhere with zero tracking.
App support
phone
Phone number
+919166853370
About the developer
MEDTECH LABS
medtech.publisher@gmail.com
69/107, Ramdev Nagar, Pareek Bhawan, Khasra No. 107,
Dhapi Marble Road, Nandri
Jodhpur, Rajasthan 342015
India
+91 91668 53370
