Forge Mods for Minecraft 1.21
Browse 14,463 free Forge mods for Minecraft 1.21 — popular picks include CrafterLib, Cowpoopmod, Fire Arrows spread fire.
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CrafterLib
CrafterLib - A robust Custom Crafter library for Minecraft

Cowpoopmod
This mod makes cow poop, adds pizza and doner kebab, armor, tools, and ores
Fire Arrows spread fire
Fire will actually spread from fire arrows, easily creating huge fire from flame bows!
Very Blue Stair Mod
Adds the very blue stair into minecraft!
More StuffV3
Adds New And Fun Stuff To Minecraft
Decomposable Nether Wart
Allows you to decompose a nether wart block
Smithing Table Adapter
A mod that allows you to use of the old smithing table and its recipes and does not require you to port your old recipes from 1.19 and below
Tie Players
This datapack allows you to tie players (or mannequins) with a lead, and to untie them with a sword. No resource pack required!
Independence Firework
Adds a custom firework celebrating the the 4th of July!
Dupeable Wither Skulls
Wither skulls can be duped just like how armor trims can!
Cobblemon Cosmos
Explore a vibrant world where Minecraft and Pokémon become one. Discover all Pokémon, diverse biomes, and ancient secrets. Build your base, train your team, and master the ultimate Pokémon-catching journey
No-Clip [The Backrooms]
Simple Backrooms mod with levels
Switchy & Pufferfish Skills Compatibility
Pufferfish skills component for switchy 3.0 and onward
Projectile Deflection
Adds a small chance for Projectile Protection to deflect projectiles
System Storage Lib
A lib mod that provides standardized system-level persistent storage
TreeCap
Chop down entire trees by breaking a single log with an axe.
Two More Sizes
A mod that adds variants of some existing mobs.
Let There Be Light
This pack adds a crafting recipe for light blocks, allowing illumination in your survival world.
Configory
Configory is a lightweight configuration library for Minecraft mods. Define each value once - with its type, default, and validation rules - then read and write it with full type safety, dot-notation paths, and JSON-backed, per-mod config files.
Contrasting Curses
Adds a collection of unique curses spread across all types of equipment with interesting tradeoffs encouraging interaction with cursed gear
DOME
Modpack used in the "DomeSMP" Project
TheJustice
This is a modpack with custom mobs, custom recipes and opimization (v1.2.4)
Juix Resources (mod version)
Mod enabling Juix datapacks' custom textures
Jonshu's wells
This data pack adds new well variants to your Minecraft worlds, including Oak, Birch, & Spruce, which all have 4 different variants. This will provide you with starter loot to help you go on adventures throughout the Minecraft world.
wholesale_villager
随着交易次数越多村民交易的价格越便宜 同时无限交易 As the number of transactions increases, the prices of villagers' transactions become cheaper and unlimited transactions are made
More Anvil Recipes
Adds crafting recipes for chipped and damaged anvils, and lets you repair anvils using iron ingots!
方块权杖
The Block Rod adds two items to the game using a data pack and resource pack: the Portable Dispenser and the Rod. Use /function ab:item/rod to obtain the Rod.
No Angry villagers
Stops villigers from getting angry at you when you hit/kill them. And when they cant pathfind.
Quality O' Life
Some technical changes to improve the minecraft experience.
Raffademic's SkyLife
🕹️ Download SkyLife, start your timer… and go!
Mostly Optimized (FORGE)
An Optimization and quality of life Modpack with lots of features. Supports 1.21.8 (1.21.9 support coming soon)
Max Protection III
Caps the max level of Protection to Protection III
Magic 8 Chat
A fun and portable magic 8 ball inside your Minecraft chat!
伴途 / Companion Locator
在经验条上直观显示队友的方向、距离、头像与高度提示,并提供可配置的轮廓发光、跨维度徽记和隐私控制.Keep your party together with teammate direction, distance, head icons, and elevation cues displayed directly on the experience bar, plus configurable outlines, cross-dimension badges, and privacy controls.
Random Foxy Screamer
This mod adds a one in a million chance of a Foxy screamer from FNAF appearing at any time while playing.
Blood God (Origin)
(NEEDS ORIGINS) a little tribute to techno (made for my own modpack)