Minecraft Java 1.21 Mods
Browse 2,174 free mods for Minecraft Java 1.21 — popular picks include [FMCS-L] fps X media X crystal x survival Optimized LITE, The lads on tour, ZCommandCooldown.
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[FMCS-L] fps X media X crystal x survival Optimized LITE
A lightweight optimization modpack designed to boost FPS and improve performance.
The lads on tour
Small pack for a group of mates, trying to keep the content fresh and exciting, in doing this the journey takes the play through an updated world, new terrains, foods, building items and brand new weapons. In an ever evolving pack no day is the same.
ZCommandCooldown
Zepsi's CommandCooldown. A simple Command Cooldown plugin.
thesomewhatyou's Old School Computer Revival project
A project that will help revive old PCs that have integrated graphics for optimal Minecraft gameplay. This will include an arrange of optimization mods that are compatible and whatnot.
Create & Conquer
Modern Survival Engineering with expansive world generation
My better Minecraft
Fabric modpack for Minecraft that enhance the overall vanilla minecraft experience
PureMash Tweaks
An advanced automation and progression utility mod, featuring 9x9 crafting with 3x3 fallback support, the custom Overload and Overclock enchantments, and deep modpack customization systems.
Sneykor's Cobblemon online
The modpack contains mods that allow you to have fun playing the Cobblemon mod. There is a new world generation, improved content with Pokémon (Pokémon riding, TM/TR, items, regular and legendary Pokémons), farming, building blocks and storage systems etc.
Cybermon 2
A Cyberpunk/Cobblemon themed Modpack with a focus on technology and automation rounded up with Cobblemon instead of weaponry
Legacy Enhanced
A modpack to make your legacy experience as good as possible.
G1axScroll
Turn your office mouse into a gaming mouse - scroll to rapid click at 20 CPS without expensive hardware!
Fast Slot
Changes Brewing Stand shift-click behavior for Blaze Powder to prioritize the ingredient slot.
SmartSort
Smart inventory and chest sorting plugin.
AI Builder
AIBuilder is a Spigot plugin that uses DeepSeek to generate JSON build plans from prompts and automatically constructs them inside a selected region with optional streaming, validation, and AI bot control.
NoToolsBreak
When enabled it makes sure that you ant break a tool or a weapon.
Bomb's Tech Utopia
Build your factory, brave the wilds, and shape your own utopia.
TabScroller
Scroll through your Minecraft tab list 📜➡️, seeing all players on crowded servers!
The Modded Minecraft Cult Server Modpack
The Official Modpack for The Modded Minecraft Cult Server

Watch Party Modpack
A lightweight modpack with the WaterMedia mod where you can watch videos with your friends.
Literally Optimized
Optimized with all possible mods for low-end PC's.

A Land of Twigs
A Land of Twigs is a vanilla+ modpack that blends Create, Farmer’s Delight, No Man’s Land, and various QoL mods. Together, they create a fresh new experience that while familiar, expands on vanilla Minecraft without losing its core charm.
Create & Electrics
A new experience with the Create mod and add-ons – physics, biomes, dungeons, and adventures.
TurtleFPS - Boost your FPS!
[1.21 Version] A simple modpack to enhance your experience, improve performance and have fun with your friends!
G1axFixer
G1axFixer is a client-side Fabric mod that fixes resource pack crashes and optimizes network, rendering, and ticking for maximum FPS and smooth combat.
Socky's Create Modpack
A Create centered ish modpack with plenty of vanilla+ content, made to not feel overly modded while providing a modded experience. large focus on optimization and ability to run on lower-end systems.
红石生电冒险优化[Redstone Power Adventure Optimization]
融合了多种优质模组与资源包,让玩家更容易上手mc,另外增加了红石生电优化,增加其实用性,以及游玩体验.(It integrates multiple high-quality mods and resource packs, making it easier for players to get started with MC. Additionally, it has optimized the generation of redstone electricity, enhancing it)

CC: Content Creator's Modpack
Made by creators, for creators. A modpack that boosts performance and adds useful tools for content creation.
Server lag fix
it reduces server ping significantly
ProxyFlow - AntiVPN
ProxyFlow protects your Velocity proxy with a firewall against VPNs, bots, and multi-accounts. The plugin includes a configurable country-blocker and punishes repeated violations with automatic temp-bans. All features are configurable!
G-Craft +
OUTDATED, please use the G-Craft modpack. modrinth.com/modpack/g-craft
Xray Detect
XrayDetect is a comprehensive plugin that monitors player mining statistics and detects suspicious behavior patterns to help server administrators catch xray users effectively
The Iron Frontier
The Iron Frontier is a cinematic survival-industry modpack where you rebuild a fallen world using machines, power grids, railways, and agriculture. Explore a ruined frontier, restore civilization, and bring a silent world back to life.
RTX ON ORES AND WEAPONS
RTX ON but with many more ores and weapons to increase your immersion.
Auramine
Welcome to Auramine, a unique combination of magic, industry, and exploration features designed to enhance your Minecraft experience.
BuildsModpacks
Vanilla-ish performance, QOL and visual quality focused modpacks and create modpacks.
Considerable original [co1]
Original Aesthetic Performance Master: Greatly improves FPS, optimizes memory footprint, and adds refined interface improvements and original-style decoration options for a smoother, more aesthetically pleasing authentic experience.