Anti Chunkbans
Simply stops you from getting kicked when entering a chunkban. Does not work on certain chunkbans after 26.1 update.
About this Mod
**Anti-Chunkban
**
A lightweight client-side mod that prevents certain forms of NBT-based denial-of-service attacks, such as book bans / chunk bans, from making the game unplayable.
The mod safely handles oversized NBT data that would normally cause disconnects, freezes, or crashes when opening containers, loading items, or joining a server.
Features
Protection against book bans and similar oversized-NBT attacks
Client-side only
Lightweight and simple
Why use this mod?
Some servers or players may use items containing extremely large amounts of NBT data to cause lag, disconnects, or client instability. This mod helps keep your game playable by handling these cases more safely.
Available Versions
How to Install Anti Chunkbans 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 Chunkbans". 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 (+1 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Anti Chunkbans 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 Chunkbans compatible with fabric?
Anti Chunkbans 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 Chunkbans – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Anti Chunkbans 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.
Rent Modded Server
Install Anti Chunkbans with just one click on your server.