Free Online Python IDE — Run Python 3 in Browser

Run Python 3 in your browser — no install, no login, runs on any device including Chromebooks. Free Python IDE with multi-file projects, shareable links, and live collaborative editing.

Common questions

Is the CS++ Python IDE free?
Yes. The Python IDE is completely free to use. You can write and run Python 3 in your browser with no payment and no account required.
Do I need to install anything or log in?
No. There is nothing to install and no login is required to write and run code. Python 3 runs entirely in your browser. Signing in is optional and only adds cloud save so you can return to your projects later.
Does it work on a Chromebook or school device?
Yes. Because Python runs in the browser, it works on locked-down school Chromebooks with no Linux mode and no admin install needed. It also runs on iPads, phones, Mac, and Windows — anything with a modern browser.
Is it good for beginners and students learning Python?
Yes. It is built for students learning Python for the first time. Starter examples, syntax highlighting, and one-click formatting help beginners write clean code, and there is no setup to get in the way of the first program.
Can teachers use it in the classroom?
Yes. Teachers can write code and hand students a shareable link to the exact same starter program — no accounts or installs needed for students. It works the same on every device in a classroom, which makes it easy to use across a cart of Chromebooks.
What Python does it support — can I use multiple files?
It runs Python 3 in the browser and supports multi-file projects, so you can split a program across several .py files and import between them. Features include syntax highlighting, one-click formatting, starter examples, full-screen mode, cloud save, and shareable code links.

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