All items stack up to 64

Config

/trigger bigger_stack_size.config

If disabled in the config, all items will reset when you split them up in your inventory

To choose what items are stackable

Edit this file:

datapack/bigger_stack_size/tags/item/stackable.json

To make certain items temporarily unstackable, e.g. for an item sorter:

Name the item "unstackable" with an anvil

Showcase

Default Stack Size 64 Items

• Armor stands
• Banner patterns
• Banners
• Beds
• Boats
• Cake
• Chest boats
• Discs
• Empty buckets
• Empty shulker boxes
• Eggs
• Ender pearls
• (Enchanted Books) [next update]
• Honey bottles
• Hanging signs
• Lingering Potions
• Minecarts
• Potions
• Saddles
• Signs
• Snowballs
• Splash Potions
• Stews
• Totems of Undying
• Spyglasses
• Writable books
• Goat Horns
• Horse armor

--> All of them are stackable up to 64