Free tools

Code playground

Write and run real code in your browser — no installs, no sign-up. Pick a language, load an example or write your own, and press Run.

Your code

Input (optional — used if your program reads from the keyboard)

Output

Press ▶ Run code to see your output here.

Learn

New to programming?

1. Start with the examples

Each language has ready examples — Hello world, variables, loops, functions. Load one, run it, then change something and run it again. Breaking things is how you learn.

2. Read the errors

Error messages look scary but they're just directions: they tell you the line number and what went wrong. Every programmer reads errors all day — start practising now.

3. Follow the blog

We publish beginner-friendly programming guides on the blog — use this playground to run the code from each article as you read.