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.
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