
Modrinth · Minecraft mod
WolfyUtils
Core API & Utils for Spigot based plugins. Inventory GUI, Language, JSON (Jackson), and many more utils
Quick answer
Which WolfyUtils release should I use?
WolfyUtils 4.19.1.2 targets 1.21.4, 1.21.5, 1.21.6 with bukkit, paper, purpur. Do not install it on the client. It must be installed on the dedicated server. All 1 required mods have matching files.
Where it goes
Is WolfyUtils required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does WolfyUtils 4.19.1.2 need?
4.19.1.2. Change the file and its required mods may change too.
Install NBT-API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add WolfyUtils without breaking your instance.
Built for WolfyUtils 4.19.1.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 4.19.1.2. It targets 1.21.4, 1.21.5, 1.21.6 with bukkit, paper, purpur; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install NBT-API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 4.19.1.2. It opens that exact file at the source.
About this project
What does WolfyUtils add?
Core API that provides an API and Utils for plugins based on Spigot.
This is the Spigot implementation of WolfyUtils. For more info see WolfyScript/WolfyUtilities
APIs & Utils
- API is plugin dependent, which means there is one instance of the API per plugin.
- Utils are plugin independent. They can be used everywhere.
- Registry is bound to the core of WolfyUtilities, but can be accessed from anywhere.
APIs
- Inventory - Functional API to create in-game GUIs.
- Language - Load JSON based language files and support multiple languages for GUIs, messages, etc.
- Chat - Send translatable messages, text click event callbacks, and more.
- (3.16.1+) KyoriPowered/adventure implementation.
- Config - Simple config utilities.
- NMS - Type specific RecipeIterator, and some Block and Inventory Utils.
- CustomItems - Create custom items with settings like custom fuel, durability, actions, etc.
Registry
The Registry is the base of all custom content in WolfyUtilities and the plugins that build on it.
It allows you to register types & objects under unique namespaced keys.
That not only allows the plugin to register things like CustomItems, etc., but it can be extended by other plugins too.
Utils:
- NamespacedKey - Unique key for all registrable content.
- JSON - Various Jackson utils that simplify de-/serialization
- HOCON support for a more human friendly config option.
- Custom de-/serializer for Bukkit objects
- Easy de-/serialization from Registry values
- Object (See @OptionalKeyReference)
- Type to object (See @KeyedTypeIdResolver & @KeyedTypeResolver)
- Particles - Configure custom particle effects & animations using JSON.
- RandomCollection - Weight based random collection.
- Reflection - Basic Reflection Utils.
- Player Head utils to set textures and more.
- Basic MySQL connection to run queries and updates.
- ItemBuilder to edit/create ItemStacks.
- Save player specific data.
Plugins using WolfyUtilities
CustomCrafting
CustomCrafting is heavily based on these APIs and Utils.
CustomCrafting especially makes use of the InventoryAPI to create and manage the in-game RecipeCreators.
The JSON utils are used to load/save recipes & items from/to JSON, and to allow for custom settings inside the json files.
Project description from Modrinth.
Pick your setup
WolfyUtils by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.1
1 loader build1.21
1 loader build1.20.6
1 loader build1.20.5
1 loader build1.20.4
1 loader build1.20.3
1 loader build1.20.2
1 loader buildShowing the newest 12 of 25 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
WolfyUtils versions and loaders
4.19.1.2
wolfyutils-spigot-4.19.1.2.jar
21 Sept 2025
4.19.0.0
wolfyutils-spigot-4.19.0.0.jar
15 Apr 2025
4.18.6
wolfyutils-spigot-4.18.6.jar
26 Mar 2025
4.17-beta.7
wolfyutils-spigot-4.17-beta.7.jar
12 Aug 2024
4.17-beta.6
wolfyutils-spigot-4.17-beta.6.jar
20 Jul 2024
4.17-beta.5
wolfyutils-spigot-4.17-beta.5.jar
15 Jul 2024
4.17-beta.4
wolfyutils-spigot-4.17-beta.4.jar
13 Jun 2024
4.17-beta.3
wolfyutils-spigot-4.17-beta.3.jar
26 May 2024
4.17-beta.2
wolfyutils-spigot-4.17-beta.2.jar
24 May 2024
4.17-beta.1
wolfyutils-spigot-4.17-beta.1.jar
2 May 2024
4.16.15.1
wolfyutils-spigot-4.16.15.1.jar
5 Mar 2024
4.16.15
wolfyutils-spigot-4.16.15.jar
3 Mar 2024
Looking for an older file? The official Modrinth project page is in Resources.
