JavaScript IDE
The online JavaScript IDE for K-12 education
const length = 14.5;
const width = 7.5;
const area = length * width;
console.log("The area is", area, "square feet");Console
Press Run.
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.
Browser-Based JavaScript IDE
JuiceMind's online JavaScript IDE runs entirely in your browser — students write, run, and debug JavaScript without installing Node or a build tool. Built for K-12 classrooms, from a first console.log() to the functions and arrays a full web project is made of.
Instant JavaScript Execution
Run JavaScript with one click and read the console output beside the code. No build step.
Test Cases & Autograding
Configure unit tests that run against student code and return instant feedback automatically.
Built-in Error Detection
Console errors and inline highlighting point students to the exact line that broke.
Works on Chromebooks & Tablets
Any device with a web browser. Nothing to install, update, or get past IT for.
The Language of the Web
Variables, functions, arrays and objects — the same JavaScript that runs every website.
Save, Share & Submit
Student work saves automatically and can be shared with a link or turned in for grading.
Also available for JavaScript
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 JavaScript IDE and start writing code in seconds. No signup required to try it out.