What the sandbox checks
Entry point, library declarations, brace balance, common unsupported language habits, and simple statement shape.
Sandbox
Compile and run in the browser VM.
This browser sandbox compiles source into a safe in-browser VM package and runs visible console, save, and render output. Windows Studio still produces real `.cba`, `.exe`, `.dll`, and `.cbl` files.
Console output appears here after Compile + Run.
Loading sandbox...Ready
What it previews
`println`, `print`, simple `u256` variables, `save`, `.cb` storage calls, canvas rendering, basic render calls, and checked 256-bit expression overflow.
What compiles for real
The browser VM package is for visible testing. Use ClosedBit Studio or ClosedBit Games on Windows to output `.cba`, `.exe`, `.dll`, or `.cbl` artifacts.
Install Coding Studio
Use this for `.cbp` programs, libraries, compiler commands, and `.cb` storage tests.
Download Studio MSIInstall Game Studio
Use this for game scenes, render loops, input, and game `.exe` exports.
Download Games MSI