ModsJava
AntiCrasher
Java mod listed for Minecraft 1.21–26.x. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
AntiCrasher
Available for Paper, Fabric, Velocity, and Folia
A collection of crash, dupe, and miscellaneous exploit patches bundled into a single plugin/mod.
Patches
The following exploits are currently patched in this plugin/mod:
- Bundle Crash Exploit
- Book Dupe Exploit
- Negative Slot ID Crash Exploit
- NBT Tab Completion Crash Exploit
Installation
Paper/Folia/Velocity
- Download the latest version from Modrinth and place it in the
pluginsfolder. Restart the server/proxy.
Fabric
WARNING - PacketEvents Fabric is currently broken for online mode servers running 1.20.4 and onwards. There is no workaround for this issue at the moment. If you run a Velocity proxy, you can use the proxy version there instead.
- Download the latest version from Modrinth and place it in the
modsfolder. - Install the latest Fabric API for your server.
- Download the latest
fabric-buildpackage from Axionize/packetevents, and place it in themodsfolder. Restart your server. Use the Official PacketEvents Builds for 1.21.8+.
Commands
- /ac reload - Reloads configs.
anticrasher.command.reload
Permissions
anticrasher.alerts- Receive alerts when a player attempts to run an exploit.anticrasher.bypass- Bypass all AntiCrasher checks.anticrasher.updates- Receive plugin update notifications
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- 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 AntiCrasher-velocity-v2.0.11.jar — drop this file into the mods folder
- Download size: 6.4 MB
- Download link checked 8 Oct 2026 — working
These come from our own check of the pack file, not from the source page.