HammerLib Mod provides a collection of useful tools and code that other mods need to work. It acts as a shared library, making it easier for modders to create new content and features for Minecraft. By handling many common tasks, this mod helps other mods run smoothly and work together.
Features:
- Helps modders register new items, blocks, and other content more easily.
- Automatically creates item versions of new blocks so they can be placed in the inventory.
- Provides tools for creating custom rendering and animations for special blocks.
- Includes a safety check that can warn players if a mod was downloaded from an untrustworthy site.
- Lets modders add new crafting recipes directly with code.
- Simplifies the process of creating tags to group similar items and blocks.
- Makes it easier to write code for multiplayer, ensuring things work correctly for all players.
- Offers a simple way to manage which tools are needed to harvest specific blocks.
- Helps save custom data for items and blocks without errors.
- Includes tools to keep the data of special blocks synced between the server and the player.
- Provides a system to create custom containers and inventories for blocks.
HammerLib Mod Download Links
For Minecraft 1.21.4
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.21.1, 1.21
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.6
NeoForge version: Download from Server 1
For Minecraft 1.20.4
NeoForge version: Download from Server 1
For Minecraft 1.20.2
NeoForge version: Download from Server 1
For Minecraft 1.20.1, 1.20
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.19.3
Forge version: Download from Server 1
For Minecraft 1.19.2, 1.19.1, 1.19
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.18.2, 1.18.1
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.16.5
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.15.2
Forge version: Download from Server 1
For Minecraft 1.12.2
Forge version: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.4, 1.20.1
- 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 196740.mcaddon
- Download size: 2.4 MB
- Download link checked 26 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.