
Anti client crasher
This projects blocks clients from being crashed by servers
About this Mod
Anti Client Crasher
Protect yourself from malicious servers.
This lightweight Fabric client mod protects your Minecraft client from server-side crash
exploits that attempt to freeze or crash your game through malformed packets, extreme values,
and resource exhaustion attacks.
Why do you need this?
some server owners (or griefers with plugin access) can send specially crafted packets (such
as extreme explosions, particle spam, invalid time packets, massive sounds, and long messages)that cause the client to freeze, leak memory, or crash completely — even on vanilla clients with no mods.
Anti Client Crasher blocks these dangerous packets before they can harm your game.
Blocks malicious Explosion packets with extreme coordinates or power
Prevents particle spam and oversized particle packets
Sanitizes dangerous SetTime packets
Limits extreme sound volume/pitch
Blocks oversized chat and system messages
Lightweight with minimal performance impact
Clear in-game warnings when malicious packets are blocked
** Supported Versions **
Minecraft 26.x (Fabric)
(Let me know if you want me to add more versions)
Install Fabric Loader
Download the mod from the Files tab
Put it in your .minecraft/mods folder
Done! No configuration needed.
Important Notes
This is a client-side only mod.
It does not require anything on the server side.
Stay safe while playing on public servers.
Available Versions
How to Install Anti client crasher on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Anti client crasher". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Anti client crasher server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Anti client crasher compatible with fabric?
Anti client crasher officially supports fabric for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Anti client crasher – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Anti client crasher consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Anti client crasher with just one click on your server.