Learn CODEHS with Real Code Examples

CodeHS offers web-based coding exercises for languages like JavaScript, Python, Java, and Karel the Robot.

It includes tutorials, quizzes, and project-based learning to teach programming concepts.

Educators can track student progress and manage assignments within the platform.

CodeHS integrates visual learning tools and live coding environments.

Designed for K–12 and introductory college computer science courses.

Integrated code editor with syntax highlighting

Live code execution and immediate feedback

Lesson plans and exercises for students

Teacher management tools for assignments and grading

Support for multiple programming languages

Variables and data types

Loops and conditional statements

Functions and methods

Basic algorithms and problem solving

Visual programming concepts with Karel the Robot

Single or multiple scripts per lesson

Interactive exercises and quizzes

Teacher-assigned projects and submissions

Code editor with output console

Optional lesson notes and hints

Log in to CodeHS

Select a course or lesson

Complete exercises in the browser editor

Run code and check output for correctness

Submit assignments or track progress

Beginner: learn basic syntax and commands

Intermediate: implement loops and functions

Advanced: solve algorithmic challenges

Expert: complete project-based assignments

Architect: design lesson plans or curriculum for students

CodeHS vs Code.org -> CodeHS: structured lessons + teacher tools; Code.org: beginner-friendly, block-based

CodeHS vs Trinket Python -> CodeHS: multi-language curriculum; Trinket: Python-focused coding

CodeHS vs Rust Playground -> CodeHS: educational platform; Rust Playground: experimentation and prototyping

CodeHS vs Tynker -> CodeHS: curriculum-focused; Tynker: gamified learning

CodeHS vs local IDEs -> CodeHS: web-based, guided learning; Local IDE: professional development

2012 - CodeHS launched

2014 - Expanded curriculum and teacher tools

2016 - Added multi-language support

2019 - Improved web editor and project assignments

2025 - Current version with enhanced lessons and analytics

IDE - Integrated Development Environment

Karel the Robot - visual programming learning tool

Lesson - guided instruction module

Exercise - coding problem to practice concepts

Teacher Dashboard - tool to track and manage students