XXL Packets
XXL Packets is a fork of XL Packets which raises the packet size limit from 2MB to the Java Integer limit (2.147483647 GB).
Screenshots
About this Mod
DISCLAIMER: This is a fork of the original XL Packets mod, This fork extends the packet limit to the Java Integer limit
Fixes https://bugs.mojang.com/browse/MC-185901 by raising the packet size limit from 2MB to 2.14GB (2147483647), so that servers with large datapacks, packets, etc don't kick the client.
This mod is needed clientside for any connecting clients.
Available Versions
How to Install XXL Packets 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 (26.2).
Install Mod
Open the mod browser in the dashboard and search for "XXL Packets". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.2, 26.1.2, 26.1.1 (+28 more)
Server-side
~ OptionalRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
XXL Packets 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 (26.2). You can switch loaders with one click in the panel.
Is XXL Packets compatible with fabric and forge and quilt?
XXL Packets officially supports fabric, forge, quilt for Minecraft 26.2, 26.1.2, 26.1.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with XXL Packets – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if XXL Packets 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.
Similar Mods
Rent Modded Server
Install XXL Packets with just one click on your server.