SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .

RANDOM.ORG - RANDOM.ORG offers true random numbers to anyone on the Internet.

Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.

GeneratorMix - A place with hundreds of generators split into different categories from science to entertainment.

Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.

Randommer - Generate random number, telephone numbers, text, hashed and social security numbers