How do I install SpASM?

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 SpASM work with?

The listing gives Minecraft rd-132211, rd-132328, rd-20090515, among others. This is the version stated by the author or source site, not something we verified ourselves.

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SpASM

Java mod listed for Minecraft 1.0–23.x. Downloads from the MC Java Mods app on Android.

by mine_diver · on Modrinth

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Straightforward, pure ASM (SpASM)

Allows registering class transformers that process all classes, without specifying the class's names like in FabricASM.

Entrypoint - spasm:transformer

Interface - net.mine_diver.spasm.api.transform.ClassTransformer

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: rd-132211, rd-132328, rd-20090515
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 SpASM-0.2.2.jar — drop this file into the mods folder
Download size: 16 KB
Download link checked 10 Oct 2026 — working

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

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