Long NBT Killer

Mod

by Dovecot_Official

Prevent minecraft from crashing while encountering deep nbt tags

Type

Mod

CurseForge Downloads

20,817,187

CurseForge ID

950085

Modrinth Downloads

25,985

Modrinth ID

rWOcJQI6

Last Updated

Nov 6, 2026

Description

Introduction

When Minecraft is encountering any compound / list nbt tag with a depth greater than 512, it throws an exception and refuses to load the save.

This mod replaced the annoying mechanism with a harmless log warning, and let the game go ahead.

ATTENTION

A compound / list nbt tag with a depth greater than 512 itself is abnormal, and you may check your save via NBT editor after receiving the warning in the log;
You DEFINITELY CAN add the mod to your modpack.

Compatibility

Mod Loaders

Fabric Forge Neoforge

Game Versions

1.20.1 1.20.2 1.21.1 1.21.2 1.21.3 1.21.8

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

Mini PC for Self-Hosting

A low-power box that can sit in a cupboard and run a modded server around the clock.

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External Resources

CurseForge Modrinth

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