Shameless plug: I built a free version of this (for R) a few months ago: https://rnotebook.io https://rnotebook.io Adoption hasn't been great, so it's probabl

Shameless plug: I built a free version of this (for R) a few months ago: https://rnotebook.io https://rnotebook.io Adoption hasn't been great, so it's probably going to stay free for a while. Enjoy!