Write HTML, CSS & JavaScript and see it live — free, no install, runs on any device. Multi-file web editor with share links and live collaborative editing, built for classrooms.
Common questions
Is the Web IDE free?
Yes. The CS++ Web IDE is completely free to use — no payment, no subscription, and no sign-up required to start writing HTML, CSS, and JavaScript.
Do I need to install anything or log in?
No. The editor runs entirely in your browser. There is nothing to install, and you can start coding immediately with no login. You only need an account if you want to save projects to your CS++ account; sharing a project by link does not require the viewer to log in.
Does it work on Chromebooks and school devices?
Yes. Because everything runs in the browser, it works on Chromebooks, iPads, phones, Mac, and Windows. There is no software to install, so it is well suited to managed school devices and locked-down lab computers.
What does the Web IDE support?
It is a multi-file HTML/CSS/JavaScript editor with live preview. You edit index.html, styles.css, and script.js, and the preview updates as you type. You can upload images and other assets, view your project as a real web page, and copy a shareable link to your work.
Is it good for beginners and students learning front-end?
Yes. It is designed for beginners learning HTML, CSS, and JavaScript rather than for professional developers. The clean, simple multi-file layout and instant live preview make it easy to experiment, and it is used in the CS++ Intro to Web Design course.
Can teachers use it in the classroom?
Yes. Teachers can use the Web IDE for demos and student projects, and students can share their work by link for review. It pairs with the CS++ Intro to Web Design course, which uses the same in-browser HTML/CSS/JavaScript environment.