C++ IDE

The online C++ IDE for high school computer science

main.cpp
#include <iostream>

int main() {
    double length = 14.5;
    double width = 7.5;

    double area = length * width;

    std::cout << "The area is " << area << " square feet" << std::endl;
    return 0;
}

Assignment

Compiling and running C++ happens in the full IDE.

Works on any device

Runs in the browser — nothing to install.

Automated grading

Tests run against every submission.

Fully customizable

Edit the lesson, starter code, and tests.

Start Coding Now

Browser-Based C++ IDE

JuiceMind's online C++ IDE compiles and runs C++ in the cloud — students write, compile, and debug without a local toolchain. Built for K-12 classrooms, from a first cout statement to the pointers and data structures a systems course is built on.

Instant C++ Compilation

Compile and run C++ with one click. No GCC install, no makefile, no local setup.

Test Cases & Autograding

Configure unit tests that run against student code and return instant feedback automatically.

Built-in Error Detection

Compiler messages point students to the exact line that broke, in plain view.

Works on Chromebooks & Tablets

Any device with a web browser. Nothing to install, update, or get past IT for.

Standard Library Support

Vectors, strings and streams — the parts of the standard library a CS course actually uses.

Save, Share & Submit

Student work saves automatically and can be shared with a link or turned in for grading.

Also available for compiled languages

Why use JuiceMind as a teaching tool?

A complete platform built for K-12 computer science education

LTI Integration

Works with Canvas, Google Classroom, and Schoology.

Web-based

Students complete everything on any web browser.

Group Projects

Students collaborate in real-time with classmates.

Debugger

Step through code line by line to find the problem.

Pre-made Exercises

Ready-to-use exercises and projects you can assign today.

24-Hour Support

Customer support around the clock when a class needs it.

Ready to Start Coding?

Jump into our C++ IDE and start writing code in seconds. No signup required to try it out.