I believe general purpose visual programming hasn't become widely popular because currently it's not really needed for general programming. General programming

I believe general purpose visual programming hasn't become widely popular because currently it's not really needed for general programming. General programming used to be pretty low-level (e.g. i++) and linear (because it's single-threaded in vast majority of cases). Things slowly change though. Now popular functional programming tends to be more high-level and the shift to multi-core CPUs even on mobile devices encourages more and more developers write multi-threaded code. At the same time there are very successful niche cases for visual programming with Excel as the most prominent. Yes, there are no data flows in Excel (although it can display dependencies with arrows), but you typically can easily identify visual blocks (chains) of calculations on a sheet. I've designed a visual programming tool for data transformation (http://easymorph.com http://easymorph.com) which can be viewed as a visual programming language[1] because typically the task of data transformation is high-level and non-linear, and visual programming works very well in this case. [1] http://bi-review.blogspot.ca/2015/06/easymorph-as-visual-functional.html http://bi-review.blogspot.ca/2015/06/easymorph-as-visual-fun...