RStudio provides free and open source tools for R

https://rstudio.com/

The JASP interface allows you to conduct statistical analyses in seconds, and without having to learn programming or risking a programming mistake.

https://jasp-stats.org/

Python builder (Perfect for scientific experiments)

https://www.psychopy.org/index.html

Pavlovia (Psychopy In The Sky)

https://pavlovia.org/

Software development version control

• http://github.com/
• http://gitlab.com/