Minecraft's default 2MB packet size limit might seem generous — until you start running complex datapacks like Origins and suddenly find players getting kicked from your server. Extra Thicc Packets Mod solves this by raising the maximum packet size from 2MB to a massive 2.14GB, effectively removing the bottleneck that causes disconnections with large data transfers. With over 1 million downloads on Modrinth, it has become a go-to server-side fix for modpack creators and server administrators dealing with oversized packet errors.
Key Features
- Massively increased packet size limit — Raises the default 2MB cap to 2.14GB, giving servers and clients plenty of headroom for large data transfers
- Prevents disconnection errors — Stops clients from being kicked due to "maximum packet size exceeded" errors, which commonly occur with heavy datapacks
- Origins mod compatibility — Specifically addresses packet size issues caused by the Origins mod and similar datapacks that transmit large amounts of data during login or synchronization
- Lightweight server utility — Appears to be lightweight with a focused scope: it modifies only the packet size threshold without altering other network behavior
- Fabric-native — Built for the Fabric ecosystem, integrating cleanly with other Fabric-based mods and server setups
Screenshots
How to Install
- Download and install Fabric Loader for your Minecraft version
- Download Fabric API and place it in your
modsfolder - Download Extra Thicc Packets Mod for your Minecraft version from the link below
- Place the downloaded
.jarfile into themodsfolder (both server-side and client-side) - Launch Minecraft and verify the mod is loaded — players should no longer get kicked for oversized packets
Requirements
| Type | Details |
|---|---|
| Mod Loader | Fabric |
| Dependencies | Fabric Modloader, Fabric API |
| Minecraft Versions | 26.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6 |
Pros & Cons
Pros
- Fixes a common and frustrating disconnection issue with large datapacks
- Essential companion mod for Origins and other data-heavy mods
- Open-source under the MIT license — easy to audit and trust
- Actively updated to support the latest Minecraft versions
- Over 1 million downloads, indicating strong community trust
Cons
- Fabric-only — no Forge or NeoForge version available
- Needs to be installed on both server and client sides to work properly
- Raising the packet limit to 2.14GB could theoretically allow very large network transfers if other mods send oversized data
Download
Always download mods from official sources to stay safe.
What's New
- Updated to the most current version — described by the developer as "the most up to date version you will need"
- Supports the latest Minecraft versions including 26.1 and the 1.21.x series
- Continued Fabric compatibility maintained across all supported versions
FAQ
Do I need Extra Thicc Packets on both the server and client?
Yes, since the mod adjusts the maximum allowed packet size, both the server sending the data and the client receiving it need the mod installed. Without it on both sides, oversized packets will still trigger disconnections.
Will this mod fix "Payload may not be larger than" errors with Origins?
That is exactly what this mod was designed for. Origins and similar datapacks often exceed the default 2MB packet limit during synchronization, and Extra Thicc Packets raises that cap to 2.14GB to prevent these errors.
Is Extra Thicc Packets Mod available for Forge or NeoForge?
Currently, the mod is only available for Fabric and requires Fabric API as a dependency. There is no Forge or NeoForge version at this time.
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