Third-party TI-84 Plus CE / TI-83 Premium CE emulator
phpipam open-source IP address management
IP Address Management - CMDB - Ticketing - DNS and Zone Management
Minimal Calculator
Multiprecision calculator
Add different calculation formulas.
A simple Clifford algebra calculator
jRCaLc is a program designed to aid you in working with resistors.
A command-line utility for calculating and verifying file checksums.
for a geometric mean size of a given particle size distribution
Simple calculator
Tinger Calc is a powerful scientific calculator environment.
Max's tiny but powerful Calculator
Tail probability calculator for continuous random variable
ternary logic calculator
Calculator with fractions
A functional HP-style command-line RPN scientific calculator
Android time code calculator