Changing default stack size

[zephiii]

How do I change the default stack size of items from 128? I know I can just /give an item that has a higher stack size but that's way too inconvenient.

[LinkachuGaming]

There's a config file in .minecraft/config/stackable.json

That allows you to adjust the stack size of all items, or individual items.

[TiGReX423]

We changed max stack size to 256 on server, and then all values in config to 256 too, 256 normal stack size in inventory - works, items to override - 256 max too. then every client of server should also change config to 256, otherwise there will be visual bug that stack size is 128 (the default one in config) but in fact (it was 256) if you split it, there will be 128 in chest(for example) and 128 in your hand.