CurseForge · Minecraft mod
Packet Fixer
A simple mod to solve various problems with packets, NBTs and timeouts.
Quick answer
Which Packet Fixer release matches 1.19.2 Forge?
Packet Fixer 3.3.2 targets 1.18.1, 1.19.3, 1.20.2 with Fabric, Forge, NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Packet Fixer required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Packet Fixer 3.3.2 need?
Packet Fixer 3.3.2 on 1.19.2 Forge. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Packet Fixer without breaking your instance.
Built for Packet Fixer 3.3.2 on 1.19.2 Forge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Packet Fixer 3.3.2. It targets 1.18.1, 1.19.3, 1.20.2 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Packet Fixer 3.3.2. It opens that exact file at the source.
About this project
What does Packet Fixer add?
Packet Fixer
Visit my discord server: Link
Description
This mod increases the packet sizes to prevent various packets/NBTs erros. This mod could be used in mod packs for increasing the number of mods.
The mod is required in Client and Server sides.
Prevent these problems:
- Tried to read NBT tag that was too big; tried to allocate: X bytes where max allowed: 2097152
- Badly compressed packet - size of X is larger than protocol maximum of 2097152
- Attempted to send packet over maximum protocol size: 8388608
- Chunk Packet trying to allocate too much memory on read.
- Packet too big (is X, should be less than 8388608)
- Payload may not be larger than 1048576 bytes
- Payload may not be larger than 32767 bytes
- Packet too large: size X is over 8
- Length wider than 21-bit
- Unable to fit X into 3
- Connection timeouts
- VarLong too big
- VarInt too big
Recipe, tag and another problems try Recipe Fixer
Used by (Not all):
- All the Mods 9 - ATM9
- Prominence II [RPG]
- Better MC FORGE
- Create+
- DarkRPG
- Thanks to all other modpacks that contain Packet Fixer!
Feel free to use this mod on your modpack
Project description from CurseForge.
Pick your setup
Packet Fixer by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
3 loader builds26.1.1
3 loader builds26.1
3 loader builds1.21.11
3 loader builds1.21.10
3 loader builds1.21.9
3 loader builds1.21.8
3 loader builds1.21.7
3 loader builds1.21.6
3 loader builds1.21.5
3 loader builds1.21.4
3 loader buildsShowing the newest 12 of 33 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Packet Fixer versions and loaders
Packet Fixer 3.3.2
packetfixer-3.3.2-1.18-1.20.4-merged.jar
4 Apr 2026
Packet Fixer 3.3.1
packetfixer-3.3.1-1.18-1.20.4-merged.jar
14 Nov 2025
Packet Fixer 3.3.0
packetfixer-3.3.0-1.18-1.20.4-merged.jar
29 Aug 2025
Packet Fixer 3.2.0
packetfixer-3.2.0-1.18-1.20.4-merged.jar
26 Aug 2025
Packet Fixer 3.1.4
packetfixer-3.1.4-1.18-1.20.4-merged.jar
17 Jul 2025
Packet Fixer 3.1.3
packetfixer-3.1.3-1.18-1.20.4-merged.jar
15 Jul 2025
Packet Fixer 3.1.2
packetfixer-3.1.2-1.18-1.20.4-merged.jar
2 Jul 2025
Packet Fixer 3.1.1
packetfixer-3.1.1-1.18-1.20.4-merged.jar
29 Jun 2025
Packet Fixer 3.1.0
packetfixer-3.1.0-1.18-1.20.4-merged.jar
22 Jun 2025
Packet Fixer 3.0.0
packetfixer-3.0.0-1.18-1.20.4-merged.jar
21 Jun 2025
2.0.0
packetfixer-forge-2.0.0-1.19-to-1.20.1.jar
15 Feb 2025
1.4.5
packetfixer-forge-1.4.5-1.19-to-1.20.1.jar
8 Feb 2025
Looking for an older file? The official CurseForge project page is in Resources.
