Web-Based IDE for Education | CodeHS

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Web-Based IDE for Education | CodeHS

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CodeHop
Standards aligned coding for districts

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Gamified coding and apps

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Easy to use typing for schools

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CodeHS Pro
Comprehensive CS platform

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Industry based credentials for CTE

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Interactive environment for cybersecurity labs

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Easily create lessons with AI

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Guided AI coding for students

Bool
AI coding and prototyping

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

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Elementary | Middle

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CodeHop Standards aligned coding for districts

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Tynker Gamified coding and apps

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Typing Easy to use typing for schools

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Middle | High

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CodeHS Pro Comprehensive CS platform

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Certifications Industry based credentials for CTE

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Cyber Range Interactive environment for cybersecurity labs

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AI

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AI Creator Easily create lessons with AI

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Vibe Coding Guided AI coding for students

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Bool AI coding and prototyping

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Use Cases

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Districts Comprehensive solutions for districts

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Schools Tools and resources for schools

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Teachers Empower educators in the classroom

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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

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Platform

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Assignments
Create & configure your course assignments

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Classroom
Manage & organize your class with customizable settings

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Grading
Streamline your grading workflow.

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Data
Track & analyze student assessments & progress data

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Write Code
Write, run, & debug code all in a web-based IDE

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Integrations
Connect CodeHS to your district’s educational platform

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AI Tools
The most complete AI toolkit in CS education

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Academic Integrity
Build a culture of honesty in your classroom

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QuizBuzz
Run gamified, interactive quizzes with your class

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LOGIC
Measure student growth with pre- & posttests

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Curriculum

Computer Science Curriculum

Customizable K-12 CS curriculum

Overview

Course Catalog

* AP Courses

* AI Courses

* Interdisciplinary

* Spanish Courses

* AI Literacy

* Digital Literacy

* Cybersecurity

K-12 Pathways

* Elementary School

* Middle School

* High School

Standards

States

Supplemental

* Practice

* Tutorials

* Digital Textbooks

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Curriculum
Customizable K-12 Computer Science Curriculum

* Course Catalog

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* AP Courses

* Interdisciplinary

* AI Courses

* Spanish Courses

* AI Literacy

* Digital Literacy

* Cybersecurity

* K-12 Pathways

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* Elementary

* Middle School

* High School

* States

* Standards

* Practice

* Tutorials

* Digital Textbooks

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Professional Development PD

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

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Professional Development
Online & In-Person Training for Teachers

* Professional Development

* Online PD Courses

* In-Person & Virtual Workshops

* AI PD

* PD Cohorts

* Free PD Events

* Teacher Certification Prep

* Microcredentials

* PD Membership

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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.

New project

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Online IDE
Write, Run, & Debug Code in an Online IDE

* Online IDE

* JavaScript

* Python

* Java

* HTML

* C++

* SQL

* Karel

* Tracy

* Blocks

* p5.js

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Resources

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About
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How schools succeed with CodeHS

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Real world coding stories

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Posts & highlights from our feed

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Explore projects built by students

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CS resources for your state

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Help articles & how-tos

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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

View All

The classroom IDE

Powerful online IDE.

Built for students and teachers.

Autograders, code history, and school privacy compliance, all in the same IDE your students already use to write and run code. No downloads required.

Start Coding Free

JavaScript
Python
Java

Autograders

Instant feedback on every run

Messaging

Students and teachers message in-editor

Code History

Every version autosaved, always recoverable

Collaboration

Code together in a shared program

How it teaches
A full teaching layer,
right inside the editor.

The moment they Run
Autograders check student work instantly.

No more hand-grading 30 nearly-identical programs. CodeHS runs pre-written or custom test cases the moment a student clicks Run, flagging exactly what passed and what didn't.

Custom test cases
Instant feedback
Pass / fail detail

Test Cases

✓ Check Code
Expand all

Test Pass Message

Functionality
✗
Output doesn’t match expected

Style: Indentation
✓
Looks good!

Style: Variable Names
✓
Descriptive names used

Style: Comments
✓
Header comment present

Style: Blank Lines
✓
Spacing is appropriate

Style: Line Length
✓
All lines under 80 chars

Help

AB

Andy B 2 min ago

My loop runs but everything prints on one line. What am I missing?

MR

Ms. Rivera just now

Good catch. Look at what your print adds between values by default, then tell it to start a new line each time.

Message your teacher...

Send

When they get stuck
Students ask for help right on their code.

Stuck students message you from inside the editor, with the exact program attached. You reply in context, so there's no email thread and no guessing which line they mean.

In-editor messages
Code in context
Reply inline

AI, on your terms
AI helps students get unstuck, and speeds up your grading.

You decide whether to turn on an AI tutor that nudges students in the right direction on their own code, never handing over the answer. And AI grading drafts a score and feedback on rubric work for you to review, adjust, and post.

AI hints
AI-suggested grades
Optional
Pro

Ask AI

AB

Andy B just now

Stuck on the guessing game, it never says I win even when my number is right.

AI

AI Hint just now

What type does the input come back as? A typed "7" and the number 7 aren t equal yet, try converting before you compare them.

Code history 4 versions today

Added newline to loop output

3:42 PM +3

24 lines appeared at once

3:30 PM Pasted

Wrote the loop by hand

3:11 PM +8

Initial file created

2:58 PM +1

Every step, on the record
Full code history, with pasted code flagged.

CodeHS saves every version as students work, so you can see how a program came together. Pasted code is flagged automatically, so a block that appears all at once stands out, giving you the context for an honest conversation.

Automatic versioning
Paste detection
Timeline view

Paste flagging, AI hints, and AI-suggested grades are part of CodeHS Pro.

Blocks to text
Start in blocks, graduate to code.

Beginners build real programs with drag-and-drop blocks, then flip the same project to text when they're ready. Same concepts, no syntax errors to fight on day one.

Blocks
Text

when run

pen down

repeat 4 times

move forward 50

turn left 90

pen up

Teachers are in control
Your classroom, your rules.

You know your students best. Blocks, copy/paste prevention, editor engine: the IDE settings for each class are yours to set. Configure per section or even per student. Block-based coding isn t a phase students age out of. It s a switch you turn on when it helps and off when they re ready for text.

▣ Class settings Intro to JavaScript

Allow Blocks
Beginners build with drag-and-drop blocks until you flip them to text

Copy/Paste Prevention
Block pasting into the editor to keep the work students own

Editor engine
Choose the code editor students see

Ace

Everything included
Other CodeHS IDE Essentials

One IDE with everything teachers need to run a great class. No plugins, no setup, no extra cost.

Debugging

Walk through programs line-by-line to find bugs in your code with the built-in debugger.

Works Anywhere

Code on any device. Chromebooks, iPads, tablets, or desktop. All you need is a browser.

Auto-Saving

CodeHS saves every keystroke to the cloud, so students never lose their work.

Documentation Tab

Reference syntax rules and language docs without leaving the IDE.

Export & Download

Download your code any time. It works in other IDEs too.

Compliant for Schools

The CodeHS IDE meets school and district privacy and data requirements, including COPPA and FERPA.

FAQ
Common Questions

Do students need to create an account to use the IDE?

No account is required to try the IDE. Students can start coding immediately for free. For classroom features like autograders, code history, and teacher messaging, a free CodeHS account is needed.

Does it work on Chromebooks?

Yes. The CodeHS IDE runs entirely in the browser with no downloads, installs, or plugins. It works on Chromebooks, Windows, Mac, iPad, and any device with a modern browser.

What programming languages are supported?

The CodeHS IDE supports 10+ languages including JavaScript, Python, Java, HTML/CSS, C++, SQL, Lua, C, C#, p5js, and bash, plus Karel, Turtle, and block coding for beginners. New languages are added regularly.

How do autograders work?

Autograders run a set of test cases against a student's program the moment they click Check Code. You can use CodeHS's pre-built tests or write your own. Results show which tests passed or failed with a message explaining why.

Is the CodeHS IDE free?

Yes. The CodeHS IDE is free to use: anyone can write, run, and save code in the browser, no account required. A free teacher account adds classes, assignments, student messaging, in-editor code history, and built-in autograders that give students instant feedback. CodeHS Pro adds AI grading, AI student hints, and academic-integrity tools.

Is CodeHS compliant with school privacy laws?

Yes. CodeHS is COPPA and FERPA compliant and has signed Student Data Privacy Consortium (SDPC) agreements with many districts. We never sell student data and provide data processing agreements for schools that require them. See our privacy center for details.

Start teaching in the CodeHS IDE.

Join thousands of CS teachers using CodeHS to autograde, give feedback, and track student progress, all without leaving the editor.

Start Coding Free
Talk to our team

Free to start. Nothing to install.

Products

* All Products

* Coding LMS

* Online IDE

* CodeHS Pro

* CodeHS Free

* Computer Science Curriculum

* Certifications

* Professional Development

* AI Creator

* Typing

* Cyber Range

Plans

* CodeHS Pro

* Start for Free

* Get a Quote

Use Cases

* District

* Schools

* Teachers

* CTE

Platform

* Assignments

* Classroom Management

* Grading

* Data

* Write Code

* Integrations

* AI Tools

* Academic Integrity

Curriculum

* Course Catalog

* Project Catalog

* K-12 Pathways

* AP Courses

* Elementary

* State Courses

* Spanish Courses

* Standards

* Hour of Code

* Practice

* Tutorials

* Digital Textbooks

* AP CSA Hub

* AI Curriculum

* Digital Literacy Curriculum

PD

* Online PD Courses

* In-Person PD Workshops

* Virtual PD Workshops

* Free PD Workshops

* PD Cohorts

* Teacher Certification Prep

* Microcredentials

* PD Membership

Programming Languages

* New Sandbox Program

* Javascript

* Python

* Java

* HTML

* C++

* SQL

* Karel

Resources

* Why Computer Science

* Why Cybersecurity

* Why Learn AI

* Why Digital Literacy

* Back to School Checklist

* Case Studies

* States

* Testimonials

* Tweets

* CodeHS Blog

* Read Write Code Book

* Knowledge Base

* Webinars

* Student Projects

* Career Center

* Student Alumni

CodeHS Has Everything

* AI

* Grading

* Differentiation

* Elementary

* Assessments

* Academic Integrity

* Online IDE

* Physical Computing

* AP Courses

* Vibe Coding

* Yes

Company

* About

* Team

* Careers

* Privacy Center

* AI Center

* Terms

* Privacy Policy

* Security

* Accessibility

Products

* All Products

* Coding LMS

* Online IDE

* CodeHS Pro

* CodeHS Free

* Computer Science Curriculum

* Certifications

* Professional Development

* AI Creator

* Typing

* Cyber Range

Plans

* CodeHS Pro

* Start for Free

* Get a Quote

Platform

* Assignments

* Classroom

* Grading

* Data

* Write Code

* Integrations

* AI Tools

* Academic Integrity

PD

* Online PD Courses

* In-Person PD Workshops

* Virtual PD Workshops

* PD Cohorts

* Teacher Certification Prep

* Microcredentials

Resources

* Why Computer Science

* Why Cybersecurity

* Why Learn AI

* Why Digital Literacy

* Back to School Checklist

* Case Studies

* States

* Testimonials

* Tweets

* CodeHS Blog

* Read Write Code Book

* Knowledge Base

* Webinars

* Student Projects

* Career Center

* Student Alumni

Use Cases

* District

* Schools

* Teachers

* CTE

Curriculum

* Course Catalog

* Project Catalog

* AP Courses

* Elementary

* State Courses

* Spanish Courses

* Standards

* Practice

* Tutorials

* Digital Textbooks

* AP CSA Hub

Programming Languages

New Sandbox Program

* Javascript

* Python

* Java

* HTML

* C++

* SQL

* Karel

CodeHS Has Everything

* AI

* Grading

* Differentiation

* Elementary

* Assessments

* Academic Integrity

* Online IDE

* Physical Computing

* AP Courses

* Vibe Coding

* Yes

Company

* About

* Team

* Careers

* Privacy Center

* AI Center

* Terms

* Privacy Policy

* Security

* Accessibility

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Web-Based IDE for Education | CodeHS

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