1) Data Visualization Playground:  https://linhtruong.com/project/datavisualizationplayground
30 chart types and 23 sample datasets for Data Visualization, Transformation, and utilities…

2) AI Playground:  https://linhtruong.com/project/aiplayground/
84 playground Labs for AI, LLM, Security, Cost, RAG, System, prompt design…

3) Machine Learning Playground:  https://linhtruong.com/project/machinelearningplayground
64 Machine Learning tools, 34 model types, 6,100+ sample data for the playground

4) Webdesign Playground:  https://linhtruong.com/project/webdesignplayground
A comprehensive playground for all of Web Design…

5) Full Stack Playground:  https://linhtruong.com/project/fullstackplayground
A comprehensive playground for Full Stack Software Development…

6) Data Science Playground:  https://linhtruong.com/project/datascienceplayground
A comprehensive playground for Data Exploration, Data Clean & Transformation, Data Visualization, Machine Learning, and SQL …

7) CODING Playground:  https://linhtruong.com/project/codinginterviewplayground
A comprehensive playground for coding interviews with Python, JavaScript, and Java…