See Devpost submission for more details.
RegEx Blocks is an interactive visual interface for building and testing regular expressions. It's great for research professionals or people learning regex.
RegEx Blocks is built with Angular 5 and TypeScript.
The nested rendering of some elements, and modelling the regular expression.
The only competitor on the market is harder to use than actually writing regex.
Sadly, we didn't have enough time to implement all of regex. We would next add full support for extended regex. It would also be nice to invert the process, pasting in a regex and seeing the block representation.