/give Command Generator

The same sword needs a different command depending on your version, which is why copied commands so often fail with “Expected whitespace”. The generator writes the format your version reads:

Java 1.13 to 1.20.4: NBT tags

give @p minecraft:diamond_sword{display:{Name:'{"text":"Excalibur","italic":false}'},Enchantments:[{id:"minecraft:sharpness",lvl:5s}],Unbreakable:1b}

Java 1.20.5 to 1.21.4: item components

give @p minecraft:diamond_sword[custom_name='{"text":"Excalibur","italic":false}',enchantments={levels:{"minecraft:sharpness":5}},unbreakable={}]

Java 1.21.5 and later (26.x too)

Text is written as SNBT instead of a JSON string, and enchantments lost the levels wrapper:

give @p minecraft:diamond_sword[custom_name={text:"Excalibur",italic:false},enchantments={"minecraft:sharpness":5},unbreakable={}]

Attribute modifiers

Modifiers add stats like attack damage, max health, speed or size (scale, 1.20.5+) while the item is in a slot. Their format changed four times. Before 1.16 the names are camelCase (generic.attackDamage) with UUIDMost/UUIDLeast; 1.16 to 1.20.4 use generic.attack_damage and an int-array UUID; 1.21 swapped the UUID for an id; 1.21.2 dropped the generic. prefix; 1.21.5 removed the modifiers wrapper. The same +10 attack damage in the main hand:

# 1.20.4
give @p minecraft:diamond_sword{AttributeModifiers:[{AttributeName:"generic.attack_damage",Name:"generic.attack_damage",Amount:10d,Operation:0,UUID:[I;1,2,3,4],Slot:"mainhand"}]}
# 1.21.4
give @p minecraft:diamond_sword[attribute_modifiers={modifiers:[{type:"minecraft:attack_damage",id:"minecraft:attack_damage",amount:10,operation:"add_value",slot:"mainhand"}]}]
# 1.21.5 and 26.x
give @p minecraft:diamond_sword[attribute_modifiers=[{type:"minecraft:attack_damage",id:"minecraft:attack_damage",amount:10,operation:"add_value",slot:"mainhand"}]]

Adding modifiers replaces the item’s own ones, so a sword with only +10 attack damage hits for 11 (10 plus your fist), not 17. Old NBT has no “either hand” or “any armour slot”, so the generator writes one modifier per slot there.

Trims, dye, food and tools

Armour trims are Trim:{…} from 1.20 and trim={…} from 1.20.5. Leather dye is display.color in NBT, dyed_color={rgb:…} from 1.20.5 and a plain number from 1.21.5. Item name, rarity, stack size, max durability, food and mining rules need 1.20.5 or later; from 1.21.2 food also needs a consumable component to be eaten, fire resistance became damage_resistant, and gliders, equip slots, use cooldowns and enchantability arrived:

give @p minecraft:diamond[food={nutrition:4,saturation:2.4,can_always_eat:true},consumable={},equippable={slot:"head"}]

Hiding tooltip lines

Before 1.20.5 a HideFlags number hides lines. From 1.20.5 each component takes show_in_tooltip:false (which can only hide modifiers you add, not a sword’s own damage lines). From 1.21.5 one tooltip_display component lists everything to hide.

Bedrock

Bedrock’s /give takes an amount, a data value and a small set of JSON components: can_place_on, can_destroy, item_lock and keep_on_death. It cannot set a name, lore, enchantments, attributes, trims or dye, so the generator adds /enchant lines to run while the player holds the item and lists what it left out.

Item names

Java shows custom item names in italics unless the name says italic:false. The generator writes that for you; press the italic button if you want the slanted look. The item list for each version comes from the game’s own data, so you are warned when an item was renamed (grass became short_grass in 1.20.3) or does not exist yet.