Don't contact me about windows issues, or mac issues, or ask me where savefiles are stored. If you want something, then make it better, it is opensource, I just wanted to deploy python in the browser. I am not very interested in feature requests.
Copy your savefile into your TTWL save game directory or folder and rename to a number dot sav (like "100.sav" or "111.sav").Every button will send you a new savefile that you can download. The details of the file will be printed below.
This program will not send your savefiles anywhere, they will be locally manipulated in your browser.