How to Run Python in Your Browser (No Installation Needed)

June 19, 2026

Installing Python on a computer is not hard, but for a lot of students it is simply not possible — school computers are locked down, Chromebooks do not run the standard installer, and you cannot install anything on a phone. The good news: you can run Python entirely in your browser, and it behaves just like the real thing.

Why run Python in the browser?

• Works on school PCs, Chromebooks, tablets and phones.
• Nothing to download or set up — no admin rights needed.
• Your code runs on your own device, so it is private and fast.
• Great for quick practice between lessons or on the bus.

How it works

Modern browsers can run a real Python interpreter using technology called WebAssembly. When you open our free online Python IDE, the Python engine loads in the background the first time you press Run. After that, your code runs instantly — there is no server doing the work, so it keeps running even if your connection drops.

Your first program

Type this into the editor and press Run:

name = input("What is your name? ")
print("Hello, " + name + "!")

The terminal on the right will ask for your name, then greet you. That is a complete, working Python program running in your browser.

Saving your work

Our editor lets you save your code as a .py file to your device and open it again later, so you can keep building a project across several sessions. Your code is also remembered automatically in your browser between visits.

When you are ready for more

Running code is the first step. To actually get better, you need practice with feedback. Our Python coding challenges give you bite-sized exercises that are automatically checked against test cases, so you learn from your mistakes immediately.