online code editor

https://getonlinecodeeditorhub.almoheet-travel.com/why-an-online-code-editor-should-be-part-of-your-web-development-toolkit

An online code editor lets you write, test, and share code right in your browser—no setup or local files needed. It's like a lightweight dev environment that runs on any device, with syntax highlighting and live preview options for quick experiments or debugging on the go.