JavaScript

• jsplayground.dev

TypeScript

• typescriptlang.org/play/

Web HTML/CSS/JS

• codepen.io/pen/
• jsfiddle.net
• developer.mozilla.org/en-US/play/

Dev Environments

• codesandbox.io/s/
• stackblitz.com
• replit.comAccount required

Go

• go.dev/play/

Rust

• play.rust-lang.org

Zig

• zig-play.dev