mod
Mixin HelperMinecraft mod for 1.21.1
Utility mod for modpack developers that provides complete control over mixin behavior
- Latest version
- 1.1.1+neoforge-1211
- Minecraft
- 1.20.1 to 1.21.1
- Java
- Java 21+
- Loaders
- Fabric, Forge, NeoForge
- Licence
- GPL-3.0-only
- Downloads
- 1.9k
- Updated
- 4 mo ago
- Available on
- Modrinth
Minecraft versions
Every version Mixin Helper declares support for, newest first, with the Java runtime that version needs.
Download
From Mixin Helper’s own host. Nothing is re-hosted here.
For Minecraft 1.21.1
Choose the loader you use before downloading.
- Get NeoForge
NeoForge
1.1.1+neoforge-1211 · 12 Jun 2026 · mixinhelper-1.1.1.jar
- Get Fabric
Fabric
1.1.1+fabric-1211 · 12 Jun 2026 · mixinhelper-1.1.1.jar
Most recently published release
mixinhelper-1.1.1.jar · 41 KB · for 1.21.1 · NeoForge
ac9238b1fb74…Older versions11Hide older versions
- 1.1.1+forge-120112 Jun 20261.20.141 KB240 downloads
fbfc17c8b92c…Get - 1.1.1+fabric-121112 Jun 20261.21.141 KB51 downloads
fd2aa0e811ee…Get - 1.1.1+fabric-120112 Jun 20261.20.141 KB58 downloads
4a5304c6a081…Get - 1.1.0+forge-120123 Mar 20261.20.141 KB272 downloads
fb74c708909a…Get - 1.1.0+fabric-121123 Mar 20261.21.141 KB44 downloads
2c6900e29aae…Get - 1.1.0+fabric-120123 Mar 20261.20.141 KB61 downloads
1b88e2949ee6…Get - 1.1.0+neoforge-121123 Mar 20261.21.140 KB795 downloads
d8826237a911…Get - 1.0.0+forge-120122 Mar 20261.20.133 KB24 downloads
85034baa9933…Get - 1.0.0+neoforge-121122 Mar 20261.21.133 KB21 downloads
d7ae827f29c9…Get - 1.0.0+fabric-120122 Mar 20261.20.133 KB14 downloads
0671dc4ded99…Get - 1.0.0+fabric-121122 Mar 20261.21.133 KB22 downloads
15625187fb74…Get
Frequently asked
Does Mixin Helper work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Mixin Helper declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Mixin Helper support?
Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Which platform or loader does Mixin Helper support?
Fabric, Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Mixin Helper?
Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.
What licence is Mixin Helper under?
GPL-3.0-only, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Mixin Helper?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download Mixin Helper safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .