ModsFinder

XXL Packets

by Lazuline

With XXL Packets installed, a client can join servers whose packets exceed the old 2MB size cap, since the limit is raised to the Java Integer maximum.

FabricForgeQuiltClient required, server optionalCC0 1.0 UniversalOpen source1.18 – 26.3

What it does

The mod is a fork of XL Packets. It lifts the cap on incoming and outgoing data from 2MB up to the Java Integer maximum of 2.14GB (2147483647 bytes), so that servers with large datapacks and packets do not disconnect the client. Players need it installed on their client to join such servers, while the server may also run it but does not have to.

Key features

  1. Higher packet size limit

    Raises the maximum packet size from 2MB to the Java Integer maximum of 2.14GB.

  2. Fixes large-packet disconnects

    Stops clients from being kicked when a server sends large datapacks or other oversized packets.

  3. Fork of XL Packets

    Extends the original XL Packets mod, which uses a 2MB limit, to the full Integer range.

Compatibility

Latest build for each game version and loader.

26.x5 of 5 versions with builds
26.31.0.6-26.x.x-fabricNot availableNot available
26.21.0.6-26.x.x-fabricNot availableNot available
26.1.21.0.6-26.x.x-fabricNot availableNot available
26.1.11.0.6-26.x.x-fabricNot availableNot available
26.11.0.6-26.x.x-fabricNot availableNot available
1.21.x12 of 12 versions with builds
1.21.111.0.5-1.21.x-fabricNot availableNot available
1.21.101.0.5-1.21.x-fabricNot availableNot available
1.21.91.0.5-1.21.x-fabricNot availableNot available
1.21.81.0.5-1.21.x-fabricNot availableNot available
1.21.71.0.5-1.21.x-fabricNot availableNot available
1.21.61.0.5-1.21.x-fabricNot availableNot available
1.21.51.0.5-1.21.x-fabricNot availableNot available
1.21.41.0.5-1.21.x-fabricNot availableNot available
1.21.31.0.5-1.21.x-fabricNot availableNot available
1.21.21.0.5-1.21.x-fabricNot availableNot available
1.21.11.0.5-1.21.x-fabricNot availableNot available
1.211.0.5-1.21.x-fabricNot availableNot available
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Quilted Fabric API (QFAPI) / Quilt Standard Libraries (QSL)The standard libraries of the Quilt ecosystem. Essential for your modding experience on Quilt!
Required

Required by 4 mods

Titan Shifter Megapack1.20 – 1.20.2Star Wars Palladium1.20.1Sonic The Hedgehog Addon1.20.1Power Rangers Samurai1.20.1

How it compares

Full comparison

XXL Packets is a Fabric, Forge and Quilt mod, open source under the CC0 1.0 Universal license, with files for 1.18 – 26.3. Extra Thicc Packets is a Fabric-only mod for 1.17 – 1.21.11 that is not open source under the MIT License. Robin's Unlimited Packets is a Fabric-only mod for 1.20.1 – 1.20.4 under All rights reserved.

ModLoadersGame versionsEnvironmentUpdated
XXL PacketsFabric, Forge and Quilt1.18 – 26.3Client required, server optional2026-04-30
Extra Thicc PacketsFabric1.17 – 1.21.11Client and server2024-07-18
Robin's Unlimited PacketsFabric1.20.1 – 1.20.4Client and server2024-05-19

Questions

Does XXL Packets need to be installed on the client?

Yes. Each player installs it; a server may add it but does not have to.

Which loaders does XXL Packets support?

Fabric, Forge and Quilt. Fabric builds need Quilted Fabric API (QFAPI), and Quilt builds need Quilt Standard Libraries (QSL).

In the catalog

XXL Packets is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 8,071 mods support Minecraft 26.3.

Optimization mods3,545Fabric modsMods for 26.38,071

More from Lazuline

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Aspects | Origins Addon1.18.2 – 1.20.2Enhanced Turtle Items (ETI)1.18.2 – 1.20.1Ultimate Origins' Utility Mod1.19.2 – 1.20.1

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What the author says

DISCLAIMER: This is a fork of the original XL Packets mod, This fork extends the packet limit to the Java Integer limit Fixes 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…
Lazuline, on the Modrinth page

Official listing

Owner
Lazuline
Published
2023-04-23
Updated on Modrinth
2026-04-30
Facts verified
2026-10-15

Tags

OptimizationUtility
Open on ModrinthCompare