Size changing potions
A pretty simple but effective mod that adds size changing potions, which does NOT use pekhui! Try not to make yourself too big or... *windows error noise*
⬇ Download on Modrinth
This is a pretty simple mod that adds 2 potion effects: Size increase and Size decrease. THey do pretty much what you think, change your size. Also, when you break a block with the size increase effect, it will explode with an appropriate magnitude. What makes this mod unique is it uses minecrafts attributes instead of pekhui! There are also items for the potions. This was made using mcreator. Oh, and don't go too big if you're not looking for a game crash. Have fun destroying everything.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.8, 1.21.9, 1.21.10
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as size-1.0.0-neoforge-1.21.8.jar — drop this file into the mods folder
- Download size: 96 KB
- Download link checked 20 Aug 2026 — working
These come from our own check of the pack file, not from the source page.