Web-Based IDE Built for Education
Write, run, and debug code in 10+ languages right in your browser - no account or downloads needed. It's free and even works on Chromebooks! Features real-time collaboration, built-in autograders, and classroom communication tools.
10+ Programming Languages
Run JavaScript, Python, Java, HTML/CSS, C++, SQL and more. Includes graphical and console programs, music, games, plus Karel the Dog in Java, JavaScript, and Python.
Learn MoreText and Block-Based Programming
Toggle between block-based and text programming to help transition beginner-level coders. Focus on programming concepts rather than syntax with Blockly visual programming.
Learn MoreReal-Time Collaboration
Code anywhere together! Invite others to collaborate on a shared Sandbox program in seconds. Powered by Firepad with live chat, user presence indicators, and automatic conflict resolution.
Learn MoreBuilt-In Advanced Autograders
Receive instant feedback on programs with built-in test cases. Use CodeHS pre-written tests or create your own! Supports unit testing, output matching, and AI-powered grading.
Learn MoreClassroom Communication & Sharing
Ask questions, send feedback, review code history, and seamlessly share programs. Built-in help tab for student support and teacher-student communication.
Learn MoreDebugging Tools
Walk through programs line-by-line to find bugs. Features breakpoints, step-through execution, variable inspection, and real-time error highlighting.
Learn MoreAuto-Saving in the Cloud
Never lose your code - all programs are automatically saved in the cloud. Complete version history with snapshots lets you view, compare, and rollback to any previous version.
Learn MoreSharing & Embedding
Share programs instantly and generate code to embed on other sites. Export projects, download code, and maintain compatibility with other IDEs.
Learn MoreDocumentation Tab
Easily reference syntax rules with built-in documentation. Every language includes a comprehensive reference guide - because every language needs a dictionary.
Learn MoreProfessional Code Editors
Choose between Monaco (VS Code's editor) or Ace Editor. Both feature syntax highlighting, auto-completion, intelligent code suggestions, and professional development tools.
Learn MoreGraphics & Game Libraries
Create with p5.js for creative coding, p5play for games, Processing for visual arts, Pygame for Python games, and A-Frame for WebVR experiences.
Learn MoreCompliant for Schools
CodeHS IDE is compliant with school and district privacy and data requirements. Works on Chromebooks and any device with a browser - no installation needed.
Learn MoreMulti-File Projects
Full folder structure organization with file upload/download capabilities. Manage complex multi-file applications with image and asset support.
Learn MoreExport & Download
Any code you write on CodeHS is compatible with many other IDEs. Export to React Native mobile apps via Expo for iOS and Android deployment.
Learn MoreTeacher Pro Tools
Suite of teacher tools to run virtual or blended classes. Includes assignment-specific IDE configurations, granular permissions, and classroom management features.
Learn MoreFrequently asked questions
Do students need to download or install anything to use the CodeHS IDE?
No. The CodeHS IDE runs entirely in a web browser, so students don't download, install, or configure anything — they just open a link and start coding. It works on Chromebooks, Macs, PCs, and tablets, which makes it a fit for schools where students can't install software on their devices.
What programming languages can students code in?
The CodeHS IDE supports 10+ languages, including Python, Java, JavaScript, HTML/CSS, C++, and SQL, plus Karel the Dog in Java, JavaScript, and Python. Students can build console programs, graphical programs, games, and even music — all in the same browser-based editor, with no setup for any language.
Is the CodeHS IDE free?
Yes. The CodeHS IDE is free to use, and students don't even need an account to start writing and running code in the browser. Schools can also upgrade to CodeHS Pro for teacher tools like assignment-specific editor settings, autograders, and classroom management — but the core coding environment costs nothing.
Can students work on the same code together at the same time?
Yes. The CodeHS IDE includes real-time collaboration, so students can invite others into a shared Sandbox program and code together live — like Google Docs for code, with live chat and presence indicators showing who's editing. And teachers stay in control: you can turn collaboration on or off by student or by assignment type, so group projects stay open while tests stay locked down to protect academic integrity.
Is student work saved automatically?
Yes. The CodeHS IDE saves every program automatically to the cloud as students work, so nothing is lost if a browser crashes, a Chromebook dies, or a student forgets to save. Because the work lives in the cloud instead of on one device, students can sign in from any computer and pick up exactly where they left off.
Can students go back to an earlier version of their code?
Yes. The CodeHS IDE keeps a complete version history of every program, automatically saving snapshots as students code. Students and teachers can view past versions, compare them, and roll back to any earlier point — so a change that breaks a program is easy to undo, and there's a clear record of how the work progressed.
Is the CodeHS IDE safe and privacy-compliant for schools?
Yes. The CodeHS IDE is built to meet school and district privacy and data requirements, so it's safe to roll out across a classroom or a whole district. It runs in the browser with no software to install, works on managed Chromebooks, and you can review exactly how student data is handled on the CodeHS privacy page.
Can beginners use block-based coding instead of typing code?
Yes. The CodeHS IDE lets beginners code in blocks instead of typing, using Blockly's drag-and-drop visual programming. Students can toggle between block-based and text mode in the same editor, so they focus on programming concepts first, then transition to writing real code by hand once they're comfortable with the syntax.
Ready to start coding in the browser?
Open the CodeHS IDE and write, run, and debug code in 10+ languages — free, no downloads, and it works on any Chromebook.
Try the IDE
