Products

Elementary | Middle
CodeHop Standards aligned coding for districts Tynker Gamified coding and apps Typing Easy to use typing for schools

Middle | High
CodeHS Pro Comprehensive CS platform Certifications Industry based credentials for CTE Cyber Range Interactive environment for cybersecurity labs

AI
AI Creator Easily create lessons with AI Vibe Coding Guided AI coding for students Bool AI coding and prototyping

Use Cases

Districts Schools Teachers

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Products Explore what CodeHS has to offer for districts, schools, and teachers
Platform

Teaching
Assignments Create & configure your course assignments Classroom Manage & organize your class Grading Streamline your grading workflow Academic Integrity Build a culture of honesty in your classroom QuizBuzz Run gamified, interactive quizzes with your class

Tools
Data Track & analyze student progress data Write Code Write, run, & debug code in a web-based IDE Integrations Connect CodeHS to your district's platform AI Tools The most complete AI toolkit in CS education LOGIC Measure student growth with pre- & posttests
Platform
Curriculum
Computer Science Curriculum

Customizable K-12 CS curriculum
Overview
Course Catalog

AP Courses

AI

Interdisciplinary

Spanish Courses
K-12 Pathways

Elementary School

Middle School

High School
Standards States Supplemental

Practice

Tutorials

Digital Textbooks
Curriculum Customizable K-12 Computer Science Curriculum
Professional DevelopmentPD

Professional Development

Online & in-person training to help teachers grow.
Overview

Online PD Courses In-Person & Virtual Workshops AI PD Free PD Events

PD Cohorts Teacher Certification Prep Microcredentials PD Membership
Professional Development Online & In-Person Training for Teachers
Online IDE
Online IDE

Write, run, & debug code right in your browser — no setup required.
Overview
Explore our languages

JavaScript

Python

Java

C++

SQL

HTML

Tracy

Blocks

p5.js
Start a new project

Open a blank sandbox in any language.
Online IDE Write, Run, & Debug Code in an Online IDE
- Online IDE
- JavaScript
- Python
- Java
- HTML
- C++
- SQL
- Karel
- Tracy
- Blocks
- p5.js
Resources

Company
About Learn about the CodeHS mission Privacy Center Our privacy & security practices Case Studies How schools succeed with CodeHS Testimonials What educators say about CodeHS

Community
Read Write Code Blog News & stories from CodeHS Coding in the Wild Real world coding stories CodeHS on X Posts & highlights from our feed Student Projects Explore projects built by students

Explore
States CS resources for your state Knowledge Base Help articles & how-tos Career Center Explore careers in tech
Resources

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New Sandbox Program

Click on one of our programs below to get started coding in the sandbox!

Java

JavaScript

Python 3

HTML

Karel

Turtle

CodeHS Glossary

Round-Off Error General

The difference between the calculated approximation of a number and its exact mathematical value due to rounding.