ModsJava
Iron's Lib
Provides common functionality and content for Iron's mods. Free Minecraft Java mod for 1.21.1, 1.20.1.
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.



Iron's Lib is a library adding easy-to-reuse frameworks for my mods, as well as a Patreon Integration API layer.
Transmogs
- Apply unique armor models to items
- Highly customizable Armor interfaces
- Automatic cape physics handling
Statues
- Dynamic Player statue asset generation
- Dynamic multiblock handling
- Static model rendering
Attributes
- Lightweight and non-intrusive implementation of common RPG-style attributes
- Armor Pierce, Mining Speed, Experience Gained, Arrow Damage, Crit Damage, Dodge Chance, Healing Received
- Attribute Remapper to dynamically hotswap item attributes in game for maximum compatibility
- Native compat with Apothic Attributes
- Entrypoints for both code and datapacks
Patreon Integration
- Patreon integration services for all of the above features
Verified by MCModsHub
- Ships as irons_lib-1.20.1-2.1.0.jar — drop this file into the mods folder
- Download size: 419 KB
- Download link checked 27 Aug 2026 — working
These come from our own check of the pack file, not from the source page.