Hotai Mod (1.21.11, 1.20.1) – Run Old Mods on Newer MC
Hotai Mod provides a simple way to patch the code of other mods for modern Minecraft versions. It is a tool that helps apply and manage code edits safely. The mod automatically converts modified files into small records that only store the changes, which helps reduce copyright risks.
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Features:
- Patches and updates the bytecode of mods to work with newer game versions.
- Automatically converts modified files into compact “.badiff” files.
- These files only store the difference data, not the entire original file.
- Reduces copyright risk by avoiding the redistribution of full bytecode.
- Please note, this mod can only replace bytecode classes, not resources or other coremods.
How to Use:
- Place the bytecode
.classfiles you want to use into thehotaifolder. - After you run the game, the mod will automatically process these files.
- The original
.classfiles will be replaced with.badifffiles, which only contain the changes.
Screenshots:






How to Install:
New to Minecraft? Follow our step-by-step guide to install Mods on your PC.View Guide
Hotai Mod Download Links
For Minecraft 1.21.11
NeoForge Version: Download from Server 1 – Download from Server 2
For Minecraft 1.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4, 1.21.3, 1.21.1, 1.21
NeoForge Version: Download from Server 1 – Download from Server 2
For All Versions from Minecraft 1.18.2 to Minecraft 1.20.1
Forge Version: Download from Server 1 – Download from Server 2
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January 30, 2026
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