Binding of Isaac: Rebirth Wiki

Converter is an activated item.



  • Using this item on Black Hearts will activate the Black Heart's damaging effect.
  • Removed in Repentance Must use with two full Soul Hearts to work. One and a half will not work.


  • Added in RepentanceBook of Virtues Book of Virtues: Spawns wisps in the middle ring, looking like hearts. Wisps have slightly higher health than average. Red Heart pickups can be used to restore their health.
  • Removed in RepentanceGuppy's Paw Guppy's Paw: Allows Isaac to attain up to 10 Heart Containers and 1 Soul Heart.
    • Added in Repentance Allows Isaac to attain up to 12 Heart containers.


  • Removed in RepentanceCar Battery Car Battery: No effect.
    • Added in Repentance: Consumes 2 Soul Hearts and produces 2 Red Heart Containers.
  • Added in Afterbirth † The Soul The Soul: Consumes Soul Hearts and produces Bone Heart Bone Hearts for The Forgotten The Forgotten. Does nothing when used by The Forgotten.
  • Added in Repentance Tainted Bethany Tainted Bethany: When used while fully charged, adds 2 Blood Charges to her pool at no cost to her Heart total. When used with no charges, consumes 3 Blood Charges and produces 2, resulting in a net loss.
    • With Car Battery Car Battery: Consumes 3 Blood Charges and produces 4, still at no cost to Heart total, resulting in infinite Blood Charges.

In-game Footage[]



  • The Converter is a reference to a converter, a device or system that changes the form of something.
  • According to Edmund via the Four Souls Isaac lore stream, the Converter's sprite was originally supposed to be similar to an adapter that converted US-standard power plugs for UK-standard power outlets, then he "just threw some wires on it."[1]
  • The Converter can be seen as an opposite to Guppy's Paw Guppy's Paw. Where the Converter takes two Soul or Black Hearts to form a Heart container (or just one Soul or Black Heart as of Repentance), Guppy's Paw takes one Heart container to form three Soul Hearts. Additionally, their flavor texts are similar.


PC Normal mode only 1TNY 7MJ0 (1st floor Shop Shop, purchase after getting A Quarter A Quarter in 1st floor Treasure Room Treasure Room; must be Isaac Isaac because a bomb is needed to get a key. The Pandora's Box Pandora's Box in the Curse Room Curse Room must be picked up before entering the Shop)

PC Hard mode only LGD3 W0PB (1st floor Shop Shop, Purchase after getting Store Credit Store Credit as a drop)

Switch KEBM C08G (1st floor Shop Shop, half price)