Welcome to Code Playground
Interactive cheatsheets, algorithm visualizers, and coding patterns to sharpen your skills in a hands-on environment.
JavaScript Cheatsheet
Master JS with live code examples. Explore everything from async/await to tricky parts like `this` and closures.
Python Cheatsheet
Run Python in your browser. Learn about list comprehensions, generators, decorators, and more.
Java Cheatsheet
Explore core Java concepts from OOP and collections to modern features like streams and lambdas.
React Cheatsheet
Deepen your React knowledge with interactive examples on hooks, state management, and component patterns.
Sorting Visualizer
Watch sorting algorithms in action. Understand how Bubble, Merge, Quick sort, and others work step by step.
Coding Patterns
Master 15 essential patterns for interviews. Solve LeetCode problems by recognizing recurring solutions.