Is this Go playground free?

Yes. The editor, runtime and examples are free to use, and no account or payment method is required.

Is my Go code uploaded?

No. Code runs inside this browser tab. The sandbox blocks network access, and SkillAIVibe does not receive or store the code you type.

Free browser compiler

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

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

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

Output will appear here after you run your code.

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.

Can I run Go code online here?: Yes. This page runs Go in your browser using yaegi (commit fcb76d1e) — an interpreter, not a compiler; Go 1.21/1.22 stdlib ceiling. Nothing needs to be installed.
Is this Go playground free?: Yes. The editor, runtime and examples are free to use, and no account or payment method is required.
Is my Go code uploaded?: No. Code runs inside this browser tab. The sandbox blocks network access, and SkillAIVibe does not receive or store the code you type.