Forge Mods for Minecraft 1.21
Browse 5,334 free Forge mods for Minecraft 1.21 — popular picks include Harder Spawners, Iris/Oculus Shader Folder, Project Expansion.
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Harder Spawners
Make Spawners harder to break, take revenge when being broken, harder to disable with Light and Limited Lifespan, all configurable
Iris/Oculus Shader Folder
A mod to hide, recolor, add tooltips, and reorder shaderpacks in the Iris/Oculus shaders menu using flexible patterns. THIS IS NOT A SHADER LOADER
Project Expansion
An unofficial expansion of ProjectE, providing an emc display, more ways to passively generate emc, and more.
JAMD
Just Another Mining Dimension
Leaderboards
Brings Back the Old Leaderboard from FTB Utilities. Now with More Features!

Structory
A seasonally updated and atmospheric structure mod with light lore
T.O Magic 'n Extras - Iron's Spells Addon
Adds high-quality & immersive spells, boss, weapons, equipment, and MORE! Integrated with L_Ender's Cataclysm, Alex's Caves etc.
WATERMeDIA: Multimedia API
Library with an API using VLC for multimedia integration with Minecraft
Vanillin
Instanced rendering for entities and block entities.
Cobblemon Fight or Flight Reborn
New version of original addon from Rufia. Makes run away or fight back when agitated.
IceAndFire Community Edition
The community version of mod Ice and Fire
Knight Lib
A library that serves as a bridge between mods.
ProbeJS
Greatly enhances your KubeJS scripting experience by adding VSCode support.
MultiStorage
Vaults, Stacking Chests, Hidden Chests, Ender Chests, and Ender Bags
ATi Structures
A Pack adding a variety of structures found in the overworld
Misc Tweaks
Lightweight mod that adds a few QoL features and patches out gameplay annoyances
Structure Credits
Automatically displays the name and mod source of any structure upon entry
Configuration
Configuration library for easy config management

Twigs
A Minecraft building blocks mod
Shulker Box Slot (Fabric/Forge/Quilt)
Adds curios and trinkets support for Shulker Boxes for easier access and management. Formerly named Curious Shulker Boxes and Trinket Shulker Boxes.
Create Mechanical Extruder
A mechanical extruder block. Can be used to generate any block or item from adjacent blocks/fluids.
Merchant Markers [Neo/Forge]
Adds custom markers above villagers based on their professions!
PackagedExCrafting
Extended Crafting Autocrafting with PackagedAuto
Random Loot Mod
It's looting like you've never seen it before!
Sooty Chimneys
Spiritual successor to campfires!
Useful Hats
Hats with special abilities. (Forge, NeoForge, Fabric, Quilt)
Expanded AE
Adds lots of features from old ae2 versions you may have missed, introduces new ones, and also expands on currently existing things!
EMI professions (EMIP)
An EMI addon that adds profession workstations
Chisel Chipped Integration
Adds blocks from the chisel mod.
GTBC's SpellLib/API
A library mod and common code storage for all of my mods containing helpful tools to make everyone's life easier with ISS add-on making!
Create: Dynamic Village
An expansion to Create that adds a fully-featured host of Create-mod village professions.
Random Bone Meal Flowers
🎲 Randomizes the flowers spawned by bonemeal, allowing all (modded) types to spawn everywhere.
FDLib
Collection of utilities for my mods
Resistance Balancer (Modpack Utils Series)
Allows to add a custom formula (or change the damge percentage it reduces) of the Resistance status effect.
Krypton Reno
Provides powerful network optimization capabilities for all mainstream systems.
Too Many Bows
A bunch of amazing crazy bows with unique abilities!!!