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Tutorials
44Classic tutorials — computer graphics, Unix network programming, cryptography, and HTML examples with clear explanations.
Mobile Development
16Android and iOS app architecture, Jetpack Compose, app design guidelines, and mobile troubleshooting guides.
Java & Backend
21Java, Spring Boot, PL/SQL, React prerequisites, and backend development articles with practical guidance.
Cloud & AI
12AWS and Azure cloud guides, serverless architecture, cost optimization, and AI developer tools like CodeWhisperer.
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Android Apps
Free offline programming tutorials by Thiyagaraaj M — Python, Java, C, C++, Spring, PHP, Unix and more.
Python Documentation Offline docs, book, tutorials, Google course and videos for Python 3.6+. 
Learn Java Programs 250+ Java programs with syntax and output — well categorized. 
Spring Framework — Java Documentation, tutorials, references and videos for Spring. 
C Programming C definitions, guide, tutorials, references and explanations. 
C++ Programming C++ definitions, guide, tutorials, references and explanations. 
Learn Java Simple programs, book, tutorials, online references and glossary. 
PHP Documentation Full offline PHP documentation, guide and mobile-optimized tutorials. 
Perl Documentation Full offline Perl documentation, guide and mobile-optimized content. Program sites
Dedicated language tutorials
Hundreds of example programs and step-by-step tutorials on separate subdomains.
Popular Articles
Gemini Nano on Android: On-Device AI with AICore and ML Kit
Gemini Nano on Android — how AICore and ML Kit GenAI work, on-device inference, multilingual and offline behavior, Kotlin APIs, plus a demo on GitHub.
Kotlin Multiplatform and Compose Multiplatform: Multi-Native Mobile in 2026
Engineer's guide to KMP and CMP — how multi-native differs from React Native and Flutter, architecture layers, and when to share logic vs native UI.
Enhancing Code Quality in Spring Boot and Microservice Development
Improve Spring Boot and microservice code quality with practical best practices for design, testing, logging, API contracts, and maintainable architecture.
Java Frameworks, Libraries, and Languages
Explore popular Java frameworks, libraries, and JVM languages — Spring, Hibernate, testing tools, and ecosystem choices for modern application development.
Mastering Android Jetpack: Clean Architecture and Best Practices
Android Clean Architecture is a software architectural pattern that promotes modularity, testability, and maintainability by enforcing a clear separation betwee
Types of iOS Distribution: Choosing the Right Path for Your iOS App
Choosing the right iOS distribution path — App Store, Ad Hoc, Enterprise, and TestFlight — with the trade-offs of each strategy for shipping your app.
Demystifying AWS Landing Zone: Streamlining Your Cloud Infrastructure
In the realm of cloud computing, setting up a robust and secure infrastructure is paramount. Organizations need a strong foundation to maximize the benefits of
Maximizing Efficiency with Azure Serverless Architecture
How Azure serverless architecture improves performance and cuts cost — Functions, event-driven design, and best practices for scaling efficiently.
Learning track
Tutorials
Classic tutorials — computer graphics, Unix network programming, cryptography, and HTML examples with clear explanations.
Computer Graphics
Computer Graphics — articles and guides on Thiyagaraaj.com.
8 tutorialsComputer Graphics Programs Using C Programming
Computer Graphics Programs Using C Programming — articles and guides on Thiyagaraaj.com.
14 tutorialsHTML Example Programs
HTML Example Programs — articles and guides on Thiyagaraaj.com.
4 tutorialsIntroduction Of Cryptography
Introduction Of Cryptography — articles and guides on Thiyagaraaj.com.
7 tutorialsUnix Network Programming Example Programs
Unix Network Programming Example Programs — articles and guides on Thiyagaraaj.com.
11 tutorialsLearning track
Mobile Development
Android and iOS app architecture, Jetpack Compose, app design guidelines, and mobile troubleshooting guides.
Learning track
Java & Backend
Java, Spring Boot, PL/SQL, React prerequisites, and backend development articles with practical guidance.
Learning track
Cloud & AI
AWS and Azure cloud guides, serverless architecture, cost optimization, and AI developer tools like CodeWhisperer.