QUERY GUY
Unleash the
analyst in you.
The ultimate open-source workspace for aspiring data analysts. Learn SQL, Excel, Python, and Power BI — all in one beautiful place.
No paywalls. No ads. No revenue. Built to help — and that's why it's free for everyone.
The Line
Learning PathwayA node-based journey through data analytics fundamentals.
The Lab
DocumentationGitHub-powered knowledge base with raw scripts and notebooks.
The Stack
Learning Modules10 curated modules from SQL to Cloud Data Engineering.
Built with for the
analytics community
10 Curated Modules for the
Modern Analyst.
From SQL fundamentals to Cloud Data Engineering — each module is designed with real-world business problems and interview-ready skills.
SQL Mastery
Senior Data Analyst perspective on query thinking, optimization, and interview readiness.
Python for Data
Analytical problem solving using Pandas and NumPy for automation and EDA.
Power BI Pro
Insight-driven storytelling, complex DAX modeling, and professional design patterns.
Statistics & Math
The mathematical backbone of reliable data interpretation and A/B testing.
SQL Mastery
Senior Data Analyst perspective on query thinking, optimization, and interview readiness.
Enter LabEverything You Need to
Master Analytics
From SQL fundamentals to Capstone projects — a complete learning ecosystem built for aspiring analysts. Click any module to explore in The Lab.
SQL Mastery
Senior Data Analyst perspective on query thinking, optimization, and interview readiness.
Excel Analytics
Job-ready skills focused on interactive dashboards, data cleaning, and automation.
Python for Data
Analytical problem solving using Pandas and NumPy for automation and EDA.
Power BI Pro
Insight-driven storytelling, complex DAX modeling, and professional design patterns.
Statistics & Math
The mathematical backbone of reliable data interpretation and hypothesis testing.
Capstone Projects
End-to-end business cases: Sales Analytics, Customer Retention, and Marketing Funnels.
This project isn't designed for revenue.
It's designed to help — and that's why it's free for everyone.
No Paywalls
Every module, every resource — completely free.
Community First
Built by analysts, for aspiring analysts.
Always Improving
Open source and constantly updated.
What People Are Saying
Real feedback from students and professionals in the analytics community.
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