How do I install SlimeSwap?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does SlimeSwap work with?

The listing gives Minecraft 1.21.8. This is the version stated by the author or source site, not something we verified ourselves.

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SlimeSwap

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by twentyeightisme · on Modrinth

Convert pistons to sticky pistons with slimeballs, remove slime with any tool. Free Minecraft Java mod for 1.21.8.

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

What can you do?

rightclick a piston with a slimeball to get a sticky piston
remove the slime with any tool

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.8
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.

File checked by MCModsHub

Ships as slimeswap-1.0.0.jar — drop this file into the mods folder
Download size: 9 KB
Download link checked 2 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

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All Mods for Java All Minecraft Java mods Java mods for 1.21