XAMPP is the go-to choice for a quick local development environment - a packaged setup you install with one click and have running immediately.
It’s a plug-and-play solution including Apache, MariaDB, PHP and Perl across Windows, Linux and macOS. It’s ideal for testing snippets, WordPress installs or experimenting with code without cloud configuration.
Behind XAMPP there’s an active community and an open project maintained by Apache Friends, and the source is available on GitHub if you want to contribute or inspect the code.