Minecraft 1.21.1 has 340 Bug Fixes mods on MineUniverse, with more than 471 million downloads combined. AttributeFix is the most downloaded of them.
Fixes incorrect snow generation on tree leaves MC-119599
Works around the MC-271325 bug on Fabric and NeoForge servers (fixes "error sending packet clientbound/minecraft:disconnect")
Server side mod that prevents dolphins from drowning when outside simulation distance
Simple mod that fixes items not ticking properly in the offhand, fixing unexpected behavior by some mods.
Fixes some bucket items not leaving an empty bucket behind when used as a recipe ingredient.
Makes twilight forest generation thread-safe and faster
Prevents chunk-loading crashes by fixing ConcurrentModificationExceptions in entity management.
A simple mod that shows a player indicator instead of a white dot when outside map boundaries.
Fixes issues with enchant functions in loot tables applying unwanted enchantments.
Hackily fixes the rendering of text in Patchouli books when Emojiful is installed.
A fix for the Wither spawn that works with Wither Spawn Animation
Restores a missing check in modern damage tilt code for indirect sources of damage. Fixes MC-259212
PixelmonShaderCompat
Fixed a bug where Pixelmon entities became invisible when shader packs were enabled updated Oct 17, 2026
MultiCore Helper
A Forge 1.16.5 CPU utility mod that adds multicore worker-thread processing, JVM/Netty thread tuning, and entity pressure tools for large m… updated Oct 13, 2026
Debugify Reforge
Debugify is a Forge 1.20.1 port of isXander's Debugify mod that fixes bugs from the Minecraft bug tracker, with smart detection that skips … updated Oct 16, 2026
Packaged Core
This mod adds compatibility between different mods in the Package the Pack (Unpackaged) modpack updated Oct 16, 2026
Wanderlust Compatibility
Targeted compatibility fixes for the Wanderlust modpack on NeoForge 1.21.1. updated Oct 13, 2026
TickMender
37 switchable fixes for crashes, memory leaks, server lag and slow starts in large Fabric 1.21.1 packs. No gameplay change. updated Oct 13, 2026
Behind AttributeFix, the ranking continues with Max Health Fix, CleanCut, CrashExploitFixer and Bee Fix.
With 340 of 31,368, Bug Fixes mods account for 1% of all mods for 1.21.1. Split by loader, the numbers for 1.21.1 are NeoForge 295, Fabric 103, Forge 28 and Quilt 19. Some mods support more than one loader, so these numbers add up to 445, more than the 340 in total.
Recent activity: 74 Bug Fixes mods (22%) got a new file for 1.21.1 in the last 30 days. Recently updated picks include PixelmonShaderCompat, MultiCore Helper and Debugify Reforge. Mojang released Minecraft 1.21.1 on August 8, 2024. Against its nearest versions, 1.21.1 has 89 fewer Bug Fixes mods than 1.20.1 (429) and 266 more than 1.21.4 (74).
By downloads, the leading Bug Fixes mods for Minecraft 1.21.1 are AttributeFix, Max Health Fix, CleanCut, CrashExploitFixer and Bee Fix.
MineUniverse currently has 340 Bug Fixes mods for Minecraft 1.21.1. Recent activity: 74 Bug Fixes mods (22%) got a new file for 1.21.1 in the last 30 days. Together they have more than 471 million downloads.
1. Install the mod loader the mod is made for (Forge, Fabric, NeoForge or Quilt) for your Minecraft version. 2. Download the mod file (.jar) that matches your Minecraft and loader version. 3. Put the .jar into the mods folder of your Minecraft directory (.minecraft/mods). 4. Start Minecraft with the loader profile selected in the launcher.
NeoForge leads with 295 mods, followed by Fabric (103), Forge (28) and Quilt (19). Some mods support more than one loader, so these numbers add up to 445, more than the 340 in total.
Yes. All 340 Bug Fixes mods for Minecraft 1.21.1 on MineUniverse are free to download.
