This is a client side mod for editing and storing items. To use, you only need creative mode, not op.

List of Every Feature

Main Features

A gui to edit the nbt on items
A client side storage system; think of it like a multi-page enderchest across any server or singleplayer world
A way to open containers like shulker boxs and chests in your inventory, without placing them down - this also allows you to put shulker boxs inside of shulker boxs
Itemfactory commands to automate common nbt edits

/nbt: Open a menu to edit the item you're currently holding
/clientchest: Open a chest available on all servers and in single player
/open: Open almost any container item, including shulker boxes, dispensers, item frames, armor stands, etc. Allows you to put shulker boxes inside shulker boxes!
/get <item | potion | soup | skull | hdb | colorcodes | lostitem | help | credits> [<args>]: Get an item or information. Head DB is integrated into /get hdb
/itemfactory <factory> [<args>]: Refer to the item factory section below

/itemfactory attributes: Edit attribute modifiers
/itemfactory blockstates: Edit block states
/itemfactory enchantments: Edit enchantments
/itemfactory hideflags: Configure the hide flags
/itemfactory lore <add | remove | set | clear | list> [<args>]: Edit the lore on an item
/itemfactory max [cursed] [all] [<level>]: Max all the enchantments on an item. Cursed includes cursed enchants, all includes incompatible enchants, and level forces a specific level instead of the max level
/itemfactory sign [<add | remove | edit <new signature>>]: Setup and add your signature to an item. /itemfactory sign defaults to /itemfactory sign add
/itemfactory unbreakable: Toggle the Unbreakable tag
/itemfactory unbindskull: Remove a skull's link to the original owner. This clears the uuid and name. Not very useful, as skulls already keep a local version of the player's head, so you don't have to worry about texture changes

Space: Edit an item's nbt
Ctrl + Space: Open a container
Ctrl + Click: Apply enchanted books to other items
An enderchest tab in the bottom left corner, which will switch between the creative inventory and client chest