Clamp!

XAMPP is a completely free, easy to install Apache distribution containing MariaDB, PHP, and Perl.The XAMPP open source package has been set up to be incredibly easy to install and to use.XAMPP is free even for commercial uses

MAMP installs a local server environment in a matter of seconds on your computer. It comes free of charge, and is easily installed. MAMP will not compromise any existing Apache installation already running on your system. You can install Apache, PHP and MySQL without starting a script or having to change any configuration files! Furthermore, if MAMP is no longer needed, just delete the MAMP folder and everything returns to its original state (i.e. MAMP does not modify any of the "normal" system). »

Windows+Nginx+MariaDB+PHP

Fenix is a desktop web server for developers. A simple and visual static web server with collaboration features.

MNPP: Mac + Nginx + Percona + PHP. Install a world-class PHP development environment on your Mac. Unleash the speed of the webserver everybody is talking about, Nginx. And for storage, use Percona, the most carefully maintained independent fork of the famous MySQL database, now owned by Oracle.

Wnmp is a client which launches Nginx, MariaDB & PHP on Windows Vista - Windows 8.1.