Download Debugify

Get the latest Debugify release for Fabric 1.21.11. Free, open-source, 70+ Minecraft bug fixes.

Debugify for Fabric 1.21.11

Version 1.21.11+1.0 · LGPL-3.0 · Free

Download .jar
📄 Fabric 1.21.11 📊 58M+ Downloads 🔓 Open Source

Installation Guide

1

Install Fabric Loader

Download and run the Fabric Loader installer. Select Minecraft 1.21.11 and your installation directory, then click Install.

2

Download Debugify

Download the latest Debugify JAR from the button above. Optionally download Mod Menu for GUI configuration of individual bug fixes.

3

Place in Mods Folder

Move the Debugify .jar file into your .minecraft/mods folder. If the folder doesn't exist, create it manually.

4

Launch & Play

Open the Minecraft Launcher, select the Fabric 1.21.11 profile, and hit Play. All 70+ bug fixes are active by default.

Recent Releases

Debugify 1.21.11+1.0

Fabric 1.21.11 · Latest

Updated to Minecraft 1.21.11. All 70+ bug fixes maintained and verified. Full compatibility with Fabric Loader and Mod Menu.

Debugify 1.21.10+1.1

Fabric 1.21.10 · November 2025

Updated for Minecraft 1.21.10. Bug fix maintenance and compatibility updates.

Debugify 1.21.4+1.0

Fabric 1.21.4 · December 2024

Updated for Minecraft 1.21.4. Continued bug fix coverage and stability improvements.