Item Editor

A powerful client-side in-game item component editor and custom NBT modifier for Minecraft Fabric.

Item Editor opens a comprehensive GUI for the item currently held by the player, allowing you to safely modify item data on a draft before applying changes. Designed as a modern alternative to traditional raw NBT data editors, this mod natively utilizes Minecraft's modern data components system instead of relying solely on outdated raw-NBT workflows. It features dynamic custom UI editors for modifying item properties, metadata, and component tags for special item types, including books, banners, custom fireworks, containers, signs, potions, and more.

Compatibility

• Current: Minecraft 26.1
• Previous: Minecraft 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6

Links

• GitHub: https://github.com/noramibu/Item-Editor
• Discord: https://discord.gg/FaxbR9eEFW

Installation

1. Install Fabric Loader.
2. Put these files in your mods folder:

• Item Editor-version-b<build>.jar
• Fabric API
• owo-lib

1. Start the game.
2. Open the advanced item editor using the keybind in Controls under Item Editor (default: I).

Supported Languages

• English (en_us)
• Spanish (es_es)
• Russian (ru_ru)
• Simplified Chinese (zh_cn)
• Traditional Chinese (zh_tw)
• Hindi (hi_in)

Features

Session Flow

• Edits are made on a cloned draft of the held item, ensuring safe component manipulation.
• Preview updates live while editing your custom item.
• Save / Apply shows a diff before writing changes to the item data.
• Post-apply verification warns when a server rewrites or rejects NBT/component fields.

Apply Behavior

• Creative mode: writes through the creative inventory packet.
• Singleplayer: writes through the integrated server.
• Multiplayer survival: preview-only when server authority is required.

Advanced Category-Based Editor

• General
• Display
• Attributes
• Enchantments
• Flags
• Book
• Special Data

The Special Data category is dynamic and automatically adapts to display the relevant component editors based on the held item type.

Editor Categories

General

• Styled custom name editor
• Stack count and rarity modifiers
• Durability, current damage, max damage, and repair cost when supported
• Unbreakable tag toggle and glint override
• Item model id and custom model data fields (float, string, color, flag)

Display

• Lore editor with rich text styling for custom tooltips
• Multiple lines
• Selection-based formatting
• Preset colors
• Hex color picker
• Gradient support

Attributes

• Add, remove, and reorder attribute modifiers
• Searchable attribute picker
• Operation, slot group, amount, and modifier id editing
• Effective attribute preview

Enchantments

• Regular and stored enchantment lists
• Searchable enchantment picker
• Optional unsafe or high-level values (bypass vanilla limits)

Flags

• Hide full tooltip toggle
• Hidden tooltip component toggles for common component lines

Book

• Writable and written book workflow
• Page editor with vanilla-like page limits
• Page navigation
• Add, remove, and reorder pages
• Mini-map page list
• Title, author, and generation editing
• Rich text styling tools for page content

Special Data (Custom Item Components)

Available only when supported by the held item.

• Potion contents: base potion, color modifier, custom name, and custom potion effects
• Suspicious stew effects
• Fireworks: custom rocket and star editor with live burst preview, shape, colors, fade, trail, and twinkle tags
• Banners: base color, manage pattern layers, and live canvas preview
• Signs: front and back text, style, color, glowing text, and board preview
• Containers: visual slot grid for Shulker Boxes/Chests, click move or swap, and searchable item picker
• Bucket creatures: axolotl, salmon, tropical fish variants, and bucket entity data flags
• Dyed item colors (e.g., leather armor)
• Armor trims: material and pattern pickers
• Player heads: profile and custom skin texture fields
• Instruments and jukebox songs
• Map color and post-processing metadata

Screenshots

General Editor

Edit core item data like name, rarity, durability, unbreakable state, glint override, and custom model fields.

Lore Editor

Write and style lore with multiple lines, formatting, preset colors, hex colors, and gradients.

Banner Editor

Change banner base color, manage pattern layers, and preview the result live in the editor.

Book Editor

Edit pages, reorder them, and manage written book data like title, author, and generation.

Container Editor

Open a visual slot-based container editor with move, swap, and searchable item selection support.