ModsJava
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).
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.
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.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 26.1, 26.1.1, 26.1.2
- 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.
Verified by MCModsHub
- Ships as xlpackets-1.0.6.jar — drop this file into the mods folder
- Download size: 14 KB
- Download link checked 26 Aug 2026 — working
These come from our own check of the pack file, not from the source page.