Spry Simulation - Microsoft Excel add-in which enables system dynamics, discrete-event and Monte Carlo simulation in modern spreadsheets, especially with small to medium-sized simulation models and for a proof-of-concept tasks.

jamovi - jamovi is a free and open statistical platform which is intuitive to use, and can provide the...

AnyLogic - AnyLogic has changed simulation modeling and expanded its application into complex business environments. The unmatched flexibility of multimethod modeling allows users to capture the complexity of virtually any system, at any level of detail.

JASP - JASP, a low fat alternative to SPSS, a delicious alternative to R.

Netron - Open-source visualizer for neural network, deep learning and machine learning models.

RStudio - RStudio™ is a new integrated development environment (IDE) for R.