Open Learning & Technical References
Free IT Study Material, Developer Roadmaps & Cheat Sheets
Curated by senior engineering mentors at techcadd Mohali. Complete with syntax cheat sheets, architectural diagrams, syllabus blueprints, and viva preparation notes — 100% free with no paywall.
100% University Aligned
Strictly follows AICTE, PTU, Panjab University, and HSBTE course syllabus guidelines.
Written by Practicing Engineers
Authored by active tech leads with genuine real-world production experience.
Viva & Project Ready
Ideal for college viva presentations, capstone defenses, and technical interview reviews.
Free Forever Access
Freely accessible to all students and learners across Punjab, Chandigarh, and Pan-India.
Download, Bookmark & Study Anytime
Organised by discipline — click 'Cheat Sheet' to read key syntax and viva notes, or click 'Full Course' to explore the complete syllabus and curriculum.
Full Stack & Web Engineering
Production-tested cheat sheets and architectural roadmaps for modern web stacks.
React 19 & Hooks Quick Reference
Concise reference covering useActionState, useOptimistic, Server Actions, useEffect pitfalls, and custom hooks.
Next.js App Router Architecture Guide
Best practices for route handlers, nested layouts, parallel routes, dynamic metadata, and SSR/SSG caching strategies.
RESTful API & Express.js Security Checklist
Hardening Node.js endpoints: CORS setup, rate limiting, JWT rotation, bcrypt password hashing, and input sanitization.
JavaScript ES6+ Modern Syntaxes Cheat Sheet
Destructuring, spread/rest, Promises, async/await, Array methods (map, filter, reduce), and Event Loop mechanics.
Artificial Intelligence & Data Science
Guides and syntax cheat sheets from Python basics to autonomous Agentic AI and LangChain.
Python for Data Science Quick Syntax Sheet
Pandas DataFrame indexing, NumPy array vectorization, Matplotlib plotting, and data cleaning routines.
Prompt Engineering & LLM Interaction Guide
Zero-shot, few-shot, Chain-of-Thought (CoT), System Prompts, and output format structuring for GPT-4o & Claude 3.5.
RAG & Agentic AI Architecture Diagram
Vector embeddings, ChromaDB/Pinecone indexing, similarity search algorithms, LangChain agent loops, and CrewAI setups.
SQL Queries & Database Modeling Guide
Window functions, complex CTEs, subqueries, indexing best practices, and Power BI relational schema modeling.
Cyber Security & Cloud Computing
Defensive and offensive security command references and cloud DevOps templates.
Linux CLI for Ethical Hackers & Sysadmins
Bash scripting, file permissions (chmod, chown), network sockets (netstat, ss), SSH tunneling, and process monitoring.
OWASP Top 10 Web Vulnerability Matrix
Detecting and preventing SQL Injection, XSS, SSRF, Broken Access Control, and Insecure Deserialization.
Docker & Containerization Command Guide
Dockerfile directives, multi-stage builds, Docker Compose orchestration, volume mounts, and network bridges.
AWS Core Infrastructure & IAM Cheat Sheet
VPC subnets, Security Groups, IAM least-privilege roles, EC2 auto-scaling, and S3 lifecycle policies.
Mechanical & Civil CAD Drafting
ISO drafting standards, SolidWorks modeling checklists, and AutoCAD shortcut commands.
AutoCAD 2D & 3D Command Shortcuts Matrix
100+ keyboard shortcuts for drafting efficiency: layers, dimensions, isometric planes, blocks, and viewports.
SolidWorks Parametric Modeling Checklist
Design intent rules, sketch constraint best practices, mate conditions in assemblies, and bill of materials (BOM) export.
Revit BIM Architecture Workflow Guide
Building Information Modeling levels, family creation, structural framing, wall schedules, and clash detection.
3ds Max & V-Ray Photorealistic Rendering Guide
Polygonal modeling, PBR material creation, daylight lighting systems, camera composition, and V-Ray frame buffer settings.
Turn Theory into Production-Ready Engineering
Notes and cheat sheets build knowledge. Real live projects under practicing engineers build careers.
6 Months Industrial Training
University-mandated final-semester training with verified corporate internship experience letter and live capstones.
AI & GenAI Masterclass
Learn to build LangChain RAG pipelines, CrewAI agents, and fine-tune foundation models on cloud GPUs.
MERN Full Stack Diploma
End-to-end full stack development: React 19, Next.js 15, Node.js microservices, and automated CI/CD pipelines.
AI Interview Prep Studio
Practice real behavioral and technical interview questions with live feedback and scoring.
CGPA to Percentage Calculator
Accurate formulas for PTU, PU Chandigarh, CBSE, and autonomous universities for placement drives.
AI Cold Email & LinkedIn Note Generator
Generate 300-character LinkedIn notes and personalized outreach messages to Tricity recruiters.
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