Tyrano save file .sav data are usually just json stored in an URL encoding or a percent-encoding. For example @ will be encoded into %40.

This tool can convert .sav into .json and back. This tool also have a monitor function that keep track the changes between the save file and the parsed file, so you can edit the values without touching the save file.

Original:

Parsed:

Check wiki for the tutorials

Tyrano browser has shift it's architecture from save editing to live editing, basically it now functions similarly as cheat engine. Once a release is out, this section would be deleted.

You can check Tyrano Browser here.