BleachBit quickly frees disk space and tirelessly guards your privacy.

PHP Fat-Free Framework is a powerful yet easy-to-use PHP micro-framework designed to help you build dynamic and robust web applications.

Squid is a caching and forwarding HTTP web proxy. It has a wide variety of uses, from speeding up a web server by caching repeated requests.

Hazelcast is an open source in-memory data grid based on Java.