testssl.sh is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as recent cryptographic flaws and more.
Good bootable USB stick creator for windows systems
bettercap is a complete, modular, portable and easily extensible MITM tool and framework
Mycli is a command line interface for MySQL, MariaDB, and Percona with auto-completion and syntax highlighting.
It is a penetration testing tool that focuses on the web browser.
It is an open-source Python-driven tool aimed at penetration testing around Social-Engineering.