This is an awesome tool that can be used to calculate packet encapsulation overhead for a variety of protocols, get an idea of what MTU and MSS values should be set to. Visually !
Converts your typical JUNOS curly braces style configuration, into JUNOS set configuration standard on the fly. The output is similar to "show configuration | display set"
This tool can decrypt $9$ JUNOS passwords similar to Cisco type7 passwords. It does not work for hashed md5 type passwords. Decrypt JUNOS passwords online.
Three different VLSM/CIDR subnet calculators, that will cover all your subnetting needs. Can also be used as a practicing tool for CCNA or JNCIA exams to confirm your answers.