Save Editor | The Binding Of Isaac Repentance

Open the editor. Click "Load Save." It will ask for the rep_persistentgamedata1.dat file. The software will decrypt it automatically. You will see a GUI with tabs:

Before making any changes, it is critical to to prevent permanent corruption. Demorck/Isaac-save-manager - GitHub The Binding Of Isaac Repentance Save Editor

primarily used for unlocking secrets. It is known to work for Afterbirth, Afterbirth+, and Repentance. Post-it for Dummies! : An automatic editor found on Open the editor