Neoforge Mods for Minecraft 1.21
Browse 1,532 free Neoforge mods for Minecraft 1.21 — popular picks include Ultimate Auction System (UAS), Puffish Cooking Experience, Formation Arrays.
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Ultimate Auction System (UAS)
Ultimate Auction System is a Minecraft 1.21.1 NeoForge auction-house mod, where players use /ah to list items, bid, buyout auctions, track history, watch listings, with UBS-backed fees, payouts, refunds, alerts, admin tools, and multilingual support.
Puffish Cooking Experience
A bridge mod for Pufferfish's Skills & Farmers'delight.
Formation Arrays
an api to bring formations to minecraft
Crafting Essentials (Paper Edition)
This mod simply adds a recipe for paper
Tyr's Minecart Speed Fixes
An overengineered minecart default speed tweaker, with lots of configurable options!
Technology Valley Tweaks
Some addons for Technology Valley modpack
neoGundam
Random item for early game and end game, with some item without recipes, for modpack's creatore and kubejs/craftweaker and a full set of a coloured blocks and painting.

LibTooltips
A simple library for adding tooltips to items

Variant Lib
A library for data-driven mob variants. Usable by both datapackers and modders!
Horror Maximized Features
Extra features mod for the modpack Horror Maximum
Saros Report System
Bring a fast, configurable ticket system to your Minecraft servers. Players file tickets in-game with a single command, you receive Discord notifications instantly.
RMK`s The One Probe Addon
The One Probe addon for different mods
Modder Name Lib
Yeah, another one of these. Shared code for quat's Season 2 mods.
Hitbox Api
Add more colliders for Minecraft
relauncher
JVM relaunch library for Java based applications
Mogrul Lib
A small library mod intended to be used as an integration-tool for other Mogrul mods.
Source Bad Hygiene
This mod adds bodily functions to minecraft
AAA Particles Command
Allows you to spawn AAA Particles with a command.
Create:Belt Tweaker
it allows you to freely adjust the spacing between items on conveyor belts
AnvilCraft: KubeJS
AnvilCraft's KubeJS Compat
CC: VR
CC: Tweaked x Vivecraft Addon
Crafting Essentials (Grass Block Edition)
This mod simply adds a recipe for the grass block
KubeJEI
Advanced JEI support for KubeJS
Unnamed Common Library (UCL)
A very simple, easy to use configuration library that fits right in your mod!
Custom Background Music
Framework for adding custom background music to your game
Reese’s Sodium Options – Compat Rewrite
The required compatibility shim to make RSO work, all credit goes to the person who actually wrote RSO; FlashyReese
Don't Crash Obscura
Crash-guard mod for NeoForge 1.21.1 that intercepts Tom’s Storage capability lookups and inventory tracking to prevent server crashes from invalid caches, failing safely instead of halting your world.
The Collective, The Aeronautical Edition
A create Aeronautics Modpack Made for The Collective SMP
BlockbenchLib
Rendering and animation library for implementing free formatted blockbench models into Minecraft
farmer's attributes
a mod that adds some player attributes related to farming and cooking.

SinoCore
The core library of SinoSeries.
XunLib
A common code library designed to ease mod development
Carpetlogging
Allows almost every non solid block to be covered with carpets in a dynamic way !
Piston Command
Push block entities like on Bedrock and make pistons work the way you want with tags
Provenance
Provenance is a mod that allows developers to add abilities to players, as well as the systems to manage and execute them.
(90gq) Core
Core to get 90gq Edition to work