agarcia14

Wow, that's pretty neat. Reminds me of Plan 9's Acme editor and IPython Notebook.

I am deeply fond of keyboard-driven browser-based outliner Checkvist (see description and screenshot at https://checkvist.com/auth/help). It's similar to Workflowy, and quite featureful. Like Workflowy, you can "zoom in" to a branch and only view it and it's children, which is very helpful when editing complicated outlines.