How do I install Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods?

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. In MC Java Mods, or directly above on this page.

What Minecraft version does Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods work with?

The listing gives Minecraft 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods

Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.

by 9minecraftmods

⬇ Download

Open in MC Java Mods Get it on Google Play →

Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods — screenshot 1

Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods — screenshot 2

Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods — screenshot 3

Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods — screenshot 4

Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods — screenshot 5

Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods — screenshot 6

Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods — screenshot 7

Packet Fixer Mod (26.2, 1.20.1) – End Crashes From Big Mods — screenshot 8

Packet Fixer Mod fixes many common errors related to game data packets and NBTs. This mod is very helpful for players who use large modpacks, as it improves compatibility between different mods. It works by increasing the allowed size for data packets, which helps prevent crashes and data transfer problems.

Features:

Fixes crashes that happen when an NBT tag is too big.
Solves errors from badly compressed packets that are larger than the maximum size.
Stops the game from crashing when trying to send a packet that is too large.
Prevents chunk packets from using too much memory.
Fixes issues where data payloads are larger than the allowed size.
Handles errors caused by VarLong and VarInt values being too big.
Helps reduce some connection timeout problems.

Screenshots:

Minecraft mod menu showing information and settings for the Packet Fixer Mod

Aerial view of a dense spruce forest bordering a blue lake

Aerial view of a dense forest with a small pond and cave

A river flowing through a forest with sandy banks and green trees

Aerial view of a peaceful Minecraft village with wooden houses and paths

Market stalls with yellow canopies and horses in a Minecraft village

Packet Fixer Mod ensures stability while exploring a ruined Nether portal structure

An aerial view of a deep ravine surrounded by green hills and sunflowers

A small island with oak and birch trees next to a desert biome

Clear blue ocean water with a dense forest of birch and oak trees

Packet Fixer Mod Download Links

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.20.1
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: In MC Java Mods, or directly above on this page.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Downloads as 83759.mcaddon
Download size: 30 KB
Download link checked 25 Sept 2026 — working
Mirrored on our own servers — the download does not depend on the original host

These come from our own check of the pack file, not from the source page.

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All Mods for Java All Minecraft Java mods Java mods for 1.20