Download visual coding roadmaps and interview preparation PDFs for Java, Python, DevOps, AI, and System Design — updated for 2026.
📘 Free Coding PDFs (Download Now)
Java • Python • DSA • System Design • DevOps • AI
Java Interview Questions & Explanation Diagrams + Cheat Sheet
50+ diagrams, OOP, Collections, Spring Boot, Microservices & JVM notes.
Download PDFPython + AI Guide
Python basics, automation scripts, AI tools, ChatGPT API & ML roadmap.
Download PDFDSA Quick Notes
Arrays, Strings, Trees, Graphs, DP, Blind-75 & common interview patterns.
Download PDFSystem Design Handbook
API Gateway, Rate Limiter, Load Balancer, Caching, CQRS, scalable systems.
Download PDFDevOps & Cloud Commands
Linux, Git, Docker, Kubernetes, AWS CLI, CI/CD commands & cheat sheets
Download PDFAI Tools & Prompt Pack
100+ ChatGPT prompts, AI workflows, automation ideas & productivity tips.
Download PDFSystem Design Interview Cheat Sheet 2026
System Design Interview Cheat Sheet and learning resources 2026
View Cheat Sheet📘 Premium Coding PDF Bundles
High-quality interview bundles with diagrams, cheat sheets & ready-to-use notes. Updated for 2026 interviews.
Java Interview Pack
Perfect for: Freshers & 1–3 YOE Developers
⭐ 4.9 (3,112 ratings) · 22,000+ downloads
- 100+ Java Interview Diagrams
- OOP, Multithreading & Collections Notes
- Spring Boot + Microservices Summary
- 2026 Updated Interview Q&A
- Instant Download • Lifetime Access
Java + DSA Complete Pack
Perfect for: Campus Placements, MAANG Prep
⭐ 4.9 (5,420 ratings) · 31,000+ downloads
- DSA Notes + 75 Must-Do Problems
- Java Interview Diagrams + Cheat Sheets
- Microservices + System Design Basics
- Updated for 2026 Interview Trends
- Instant Download • Lifetime Access
All-in-One Developer Starter Pack
Perfect for: Beginners starting from zero
⭐ 4.8 (1,960 ratings) · 11,000+ downloads
- Java + Python + DSA Notes
- 50+ Coding Patterns Cheat Sheets
- Basics of System Design + DevOps
- Updated for 2026 Learning Roadmaps
- Instant Download • Lifetime Access
Tutorials
Java
Roadmap, OOP, Spring Boot, Interview Questions
Python & AI
Python Basics, Automation, AI Apps, ChatGPT API
DSA / Coding
Top DSA Questions, Blind-75, Java & Python Solutions
System Design
Architecture, Microservices, Scalability, Diagrams
DevOps & Cloud
Docker, Kubernetes, AWS, CI/CD, DevSecOps
SpringBoot & Microservices
Spring Boot & Microservices Architecture
Free PDFs
Java, Python, DSA, System Design, DevOps, AI Guides
Go 2026: Essential Tutorial & Diagrams
Master Modern Go Development with Visual Learning – Complete guide with interactive diagrams for Go developers
🔥 Trending Tutorials
AI Agents with Python (2026 Guide)
Learn how to build intelligent AI assistants using Python, LangChain, and OpenAI APIs.
Read More →Java 21 Features (With Diagrams)
A complete beginner-friendly breakdown of Java 21: Virtual Threads, Records, Pattern Matching & more.
Read More →System Design for Beginners
A visual guide covering caching, load balancers, microservices, queues & scalable architectures.
Read More →Kubernetes for Java & Python Developers
Understand Pods, Deployments, Services & CI/CD pipelines with real project examples.
Read More →Top 100 DSA Interview Questions
Master coding interview problems for FAANG and top tech companies with Java & Python solutions.
Read More →Spring Boot Microservices Architecture
Learn API Gateway, Service Registry, Distributed Logging, Circuit Breaker & more.
Read More →📍 Developer Roadmaps
Java Developer Roadmap
Master Core Java, OOP, Collections, Spring Boot, Microservices, SQL & System Design.
View Roadmap →Python Developer Roadmap
Learn Python basics, OOP, automation, APIs, data structures, and AI tools.
View Roadmap →AI / ML Roadmap
Python, NumPy, Pandas, ML algorithms, vector DBs, RAG, LLM apps & real AI projects.
View Roadmap →DevOps Roadmap
Linux, Git, Docker, Kubernetes, Jenkins, AWS, Terraform & CI/CD pipelines.
View Roadmap →System Design Roadmap
Learn fundamentals of scalable systems, caching, queues, microservices & more.
View Roadmap →Full Stack Roadmap
HTML, CSS, JS, React, Node.js, Databases, APIs, Deployment, and DevOps basics.
View Roadmap →Free AI Learning Roadmap 2026
Free AI Learning Roadmap 2026 | Step-by-Step AI, ML & Deep Learning Guide.
View Roadmap →🔥 Popular Articles
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View→The Complete AI Engineer Roadmap 2026: From Beginner to Architect
Step-by-step visual roadmap to becoming an AI Engineer in 2026. Learn Python, LLMs, RAG, Agents, and Deployment. Interactive guide with free resources.
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TKTips.org provides free programming roadmaps, coding PDFs, and interview preparation resources for Java, Python, DevOps, AI, and full-stack developers. All content is designed to be simple, visual, and beginner-friendly.
