Apps to No installation required

WnMp is a lightweight and portable software stack for Windows, designed to provide an easy-to-use environment for web development. It bundles Nginx, MariaDB, and PHP, allowing users to quickly set up a local web server for testing and development purposes.

cdrtfe is a free, open-source frontend for cdrtools, a powerful suite of DVD/CD burning utilities. It provides a user-friendly graphical interface for various burning tasks on Windows, including data CDs/DVDs, audio CDs, video DVDs, and disc cloning.

EasyPHP is a portable WAMP server package designed for web development. It provides a local development environment with Apache, PHP, MySQL/MariaDB, and essential tools like phpMyAdmin, allowing developers to build and test web applications without needing to install and configure each component separately.

Jitsi is a free and open-source suite of secure, flexible communication tools. It offers multi-platform support for voice (VoIP), video conferencing, and instant messaging, emphasizing privacy and ease of use with no account required to start a meeting.

XAMPP is a free and open-source cross-platform web server package. It includes the Apache HTTP Server, MariaDB database, and interpreters for scripts written in the PHP and Perl programming languages.