Welcome to IsaacGuru's Item Laboratory!
This website shows descriptions about all items in the Fiend Folio mod for The Binding of Isaac, using a semi-automated process of reading the game's files, and lots of hard work by IsaacGuru and the community.

Hover over any item on the right side to display information about it.

Click on an item to freeze its description for 3 seconds, and allow interaction with the left-side panel!
Head over to the Settings Page to toggle various settings that can enhance your experience.
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Key Master item pool
Items in this item pool are spawned from Key Masters.


▾Fiend Folio items ()▾

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