Pehkui Guide: How to Use and Change Size

Changing Entity and Player Size with Pehkui

Pehkui is a server-side utility mod that lets you scale entities and players to different sizes. Scaling affects hitboxes, reach, and movement speed, so a smaller entity is harder to hit and reaches less far, while a larger one has the opposite effect.

To use it, run the mod on the server (clients can join without it). Scaling is applied through commands. The mod provides a scale command that targets a player or entity and sets a scale type, such as width, height, or overall size. You choose the target, the scale category, and the value you want.

Because Pehkui is server-side, the server controls all scaling, keeping sizes consistent for everyone. This makes it useful for adventure maps, minigames, or roleplay where characters of different sizes need matching hitboxes and reach.

Note: Pehkui is a Java Edition mod. It is not available for Bedrock or MCPE.