ModsJava
NaNny
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
NaNny
Because some mods can't keep their floats in control.
NaNny is a Minecraft Neo/Forge mod that cleans up after mods that set entitys' health and/or absorption to NaN.
This is accomplished by hooking into the following events and cancelling and optionally healing the affected entities:
- LivingAttackEvent
- LivingDamageEvent
- LivingHealEvent
- LivingHurtEvent
NaNny creates a TOML configuration file in world/serverconfig/nanny-server.toml
The configuration file has the following options at present:
- doHeal - Enable setting the health of an entity when NaN is dealt or healed to them (Default true)
- health - Percentage of max health to set the entity to when NaN dealt or healed to them (Default 1.0)
- log - Whether or not to log events that set entitys' health to NaN (Default true)
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 26.1, 26.1.1, 26.1.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as nanny-1.0.1.jar — drop this file into the mods folder
- Download size: 5 KB
- Download link checked 26 Aug 2026 — working
These come from our own check of the pack file, not from the source page.