ModsJava
CoreItems
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
Custom Items, YAML-Driven, In-Game GUI, Clickable Actions – Lightweight & Extensible - A useful plugin for defining and managing custom in-game items.
⬇ Download on Modrinth
Features!
- Define custom items entirely via a single YAML file per namespace
- Organize items into namespaces for clean grouping and modular sharing
- Assign unique item keys referenced as :
- Support custom model data linking to resource-pack textures
- Configure display name, lore, amount, unbreakable state, and glow effect
- Add vanilla enchantments and item flags (e.g., HIDE_ATTRIBUTES)
- Bind left- and right-click actions to console commands with placeholders
- Set per-item and global interaction cooldowns to prevent spamming
- Built-in GUI menu lets players browse namespaces and grab items in-game
- Pagination and configurable border items ensure a clean GUI layout
- Enable a namespace search feature with a timeout and custom search button
- Reload all configs on-the-fly via /coreitems reload without restarting
- List all registered custom items with /coreitems list
- Grant fine-grained command permissions: give, list, menu, and reload
- Lightweight design optimized for minimal TPS and memory impact
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21
- 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.
File checked by MCModsHub
- Ships as CoreItems-1.0.03.jar — drop this file into the mods folder
- Download size: 76 KB
- Download link checked 10 Nov 2026 — working
These come from our own check of the pack file, not from the source page.