Creative Tabs, also known as Item Groups, are the tabs in the creative inventory that store items. You can create your own creative tab to store your items in a separate tab. This is pretty useful if your mod adds a lot of items and you want to keep them organized in one location for your players to easily access.

Creating the Creative Tab

Adding a creative tab is pretty simple. Simply create a new static final field in your items class to store the creative tab and a resource key for it. You can then use FabricItemGroup.builder to create the tab and add items to it:

public static final ResourceKey<CreativeModeTab> CUSTOM_CREATIVE_TAB_KEY = ResourceKey.create(BuiltInRegistries.CREATIVE_MODE_TAB.key(), Identifier.fromNamespaceAndPath(ExampleMod.MOD_ID, "creative_tab"));
public static final CreativeModeTab CUSTOM_CREATIVE_TAB = FabricItemGroup.builder()
		.icon(() -> new ItemStack(ModItems.GUIDITE_SWORD))
		.title(Component.translatable("itemGroup.example-mod"))
		.displayItems((params, output) -> {
			output.accept(ModItems.SUSPICIOUS_SUBSTANCE);
			output.accept(ModItems.POISONOUS_APPLE);

			// The tab builder also accepts Blocks
			output.accept(ModBlocks.CONDENSED_OAK_LOG);
			output.accept(ModBlocks.PRISMARINE_LAMP);

			// And custom ItemStacks
			ItemStack stack = new ItemStack(Items.SEA_PICKLE);
			stack.set(DataComponents.ITEM_NAME, Component.literal("Pickle Rick"));
			stack.set(DataComponents.LORE, new ItemLore(List.of(Component.literal("I'm pickle riiick!!"))));
			output.accept(stack);
		})
		.build();

// Register the group.
Registry.register(BuiltInRegistries.CREATIVE_MODE_TAB, CUSTOM_CREATIVE_TAB_KEY, CUSTOM_CREATIVE_TAB);

You should see a new tab is now in the creative inventory menu. However, it is untranslated - you must add a translation key to your translations file - similarly to how you translated your first item.

Adding a Translation Key

If you used Component.translatable for the title method of the creative tab builder, you will need to add the translation to your language file.

{
  "itemGroup.example-mod": "Example Mod"
}

Now, as you can see, the creative tab should be correctly named: