Based on current community testing, here are the three most reliable tools:
Some popular save editors for The Binding of Isaac: Repentance include:
Restore data from the game’s automatic save_backups folder if a save becomes corrupted or is accidentally deleted. Essential Usage Guide
Using these tools incorrectly can lead to permanent data loss. Follow these safety steps: GitHub - jamesthejellyfish/isaac-save-edit-script
Most modern editors offer a user-friendly interface to tweak the following:
If you want a direct link to the current best save editor, I can provide a safe GitHub reference. Just let me know.