Playground

Go playground

How the sandbox works, and its honest limits, is on the code execution and security page.

yaegi (commit fcb76d1e) — an interpreter, not a compiler; Go 1.21/1.22 stdlib ceiling

Ctrl/Cmd+Enter to run

Press Esc then Tab to move keyboard focus out of the code editor.

stdin (one value per line, read by bufio.NewReader(os.Stdin))

Ready

Output will appear here after you run your code.

Not sure what to type?

A blank editor is the hard place to start. The Go exercises hand you a program that already runs and ask you to change one thing.