Simple Registry Aliases Mod (1.21.7) is a utility mod for Minecraft that gives modders and advanced players a convenient way to define registry entry aliases through configuration files. It simplifies the complex registry alias system offered by the Fabric API and exposes it in a user-friendly, config-driven structure. Whether you’re remapping items, blocks, biomes, or enchantments, this mod helps avoid crashes and incompatibilities caused by missing or renamed entries.
This mod is especially useful when managing large modpacks or developing custom content that changes or removes entries between updates. With it, you can ensure world stability and smooth transitions by setting up aliases that redirect old IDs to new ones.

Features:
- Define registry entry aliases via config files for clean and maintainable setups
- Supports both static and dynamic registries, including blocks, items, biomes, enchantments, and more
- Utilizes the Fabric API’s internal registry alias system, made accessible through a simple configuration
- Reduces world corruption issues caused by renamed or removed entries
- Lightweight and non-intrusive perfect for developers and modpack makers
Screenshots:





Requires:
How to install:
How To Download & Install Mods with Minecraft Forge
How To Download & Install Fabric Mods
How To Download & Install The Quilt Loader
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Why use Simple Registry Aliases Mod?
If you’re building complex modpacks or maintaining a long-running Minecraft world, registry mismatches can lead to crashes, missing blocks, or broken data. Simple Registry Aliases Mod provides a direct solution by letting you create alias mappings between old and new registry entries without writing Java code. This gives you flexibility and control during mod updates, removals, or custom content changes. It’s a must-have for any serious modder or pack developer working in the Fabric ecosystem.
FAQs
What is a registry alias in Minecraft modding?
A registry alias redirects one identifier (like an item ID) to another. It’s used when content is renamed or moved across mods or updates, helping prevent data loss or errors.
Can I use this mod without knowing how to code?
Yes, the mod is entirely config-driven. You just need to define mappings in a simple configuration file—no programming required.
What happens if I remove or rename an item in a modpack?
Without registry aliases, it may cause missing block/item errors. With this mod, you can point the old ID to a new one to keep worlds stable.
Does it only work with Fabric?
Yes, this mod leverages the registry alias system built into the Fabric API and is not compatible with Forge or NeoForge.
Where do I configure the aliases?
The mod provides a config file where you can manually define alias mappings for different types of registry entries such as items, blocks, biomes, etc.
Download links
- Fabric Version:download Download file