ClozeMaker is a small Windows application I threw together in 2017 to make the process of making cloze-deletion flashcards in Anki easier. I demonstrated how I make these flashcards in a stream on YouTube:
I had not intended originally to make this program available publicly, it was just a quick and dirty tool I threw together quickly. After using it in the stream above, several people asked if they could get a copy as well. So I put the source code on GitHub and made the program available for download.
ClozeMaker can be downloaded here: https://github.com/peterjcarroll/ClozeMaker/releases