Learn System Design concepts and prepare for interviews using free resources.
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Updated
Nov 1, 2026 - Java
Learn System Design concepts and prepare for interviews using free resources.
Open-source High-Level System Design, DSA, and AI Engineering handbooks. CC BY-SA 4.0, Free Forever.
Data Structures and Algorithms, Low level design, High level design Notes, Mind maps, Cheatsheets
This repository includes all the homework, assignment and contest solutions taught at Scaler Academy
System design concepts and implementations (includes high-level design, low-level design, microservices, etc.)
Learning LLD and HLD
Pro[ject]schi[matics]. Design IT, Load IT, Build IT
System Design Notes
This repo includes system design concepts, topics, AWS Services, capacity planning etc.
Centralized notes, analysis, and real-world observations on system design patterns and architecture.
Maintaining my learning of DSA, LLD, HLD, MERN Stack from Scaler Academy
All the Famous algorithms you need!
System Design, LLD, HLD, and Interview Preparation in Java, Python, Golang, C++, and JavaScript – with concepts, patterns, and case studies.
Clone of Hello Interview Practice section
This repository contains all the problems that I've solved as part of the Scaler Academy curriculum.
Vibecoding workflow to ship real software: gates G0-G5, contract freeze, multi-agent orchestration. Codex skill + opencode adapter.
🚀 Java-based repository to master DSA, Low-Level Design, and High-Level Design for coding interviews — with topic-wise and company-wise tracking, real-world design patterns, and system architecture blueprints.
A complete system design reference — networking, caching, databases, architecture patterns, security, and full interview walkthroughs (Twitter, Netflix, Uber, WhatsApp) with diagrams for every concept.
To associate your repository with the hld topic, visit your repo's landing page and select "manage topics."