If you use an , you might unlock an item in-game that doesn't trigger the corresponding Steam achievement, leaving you stuck with a "broken" profile.
C:\Program Files (x86)\Steam\userdata\[YourID]\250900\remote\ the binding of isaac repentance save editor upd
: A specialized tool on GitHub that automatically syncs your in-game completion marks and post-it notes based on your Steam achievements via the Steam Web API. If you use an , you might unlock