One such tool is mentioned in discussions as (likely an acronym for an editor like "RPG Maker Save Editor" modified for WOLF). These editors offer features like the ability to "unpack" save files for manual editing or exploration, which is particularly useful if you want to edit characters who aren't in your active party or access custom plugin values. Perhaps the most powerful feature of such tools is the ability to both save and load raw JSON values used by the save file. This echoes the functionality of WolfSave, providing direct access to the code.
To help you get started with your specific game, let me know: Rpg Wolf Save Editor