This is a fun little tool inspired by the great book English After RP. It displays the output of eSpeak NG, with some additional rules to make the IPA correspond to a more modern version of English.
The whole thing is a quick hack, please don't expect too much.
To use, install espeak. If you're not using Windows, you'll probably need to change C:\Program Files\eSpeak NG\espeak-ng in lib2.py to sth else, idk. After installing requirements.txt you should be able to run app.py as a regular Flask app.