Minecraft Java 1.21 Mods
Browse 296 free mods for Minecraft Java 1.21 — popular picks include Modern Auction, Region Selection Viewer, The watcher is a killer.
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Modern Auction
A asynchronous GUI Auction House for 1.20+. Features Buy-It-Now, Anti-Snipe mechanics, category filtering, Shulker previews, and offline-player support—all backed by a blazing-fast SQLite database.
Region Selection Viewer
A WorldEdit and Axiom selection viewer for precise building and visualizing in Mini-maps.
The watcher is a killer
This is a horror mod there are 4 observers, each of them has his own house, but I advise you not to enter there and there is a chance to die and start playing around with the mod, you will see for yourself after installation
Slashbridge
serverside utility mod aiming to add in minecraft commands that I think the base game lacks, bridging datapack and mod function.
Vanilla X MC
This modpack is based on a Vanilla + experience ,it extends on base features and ands extra QOL feature plus extra mechanics
Create: Meat Blocks
Brings back Meat Blocks from MineFactory in a new, Create style! Features the slaughterhouse, ingots, straws, and baconator (autofeeder). Create your own meat processing plant today!
ClimateCraft
Adds climate change mechanics. Building, mining, and smelting emit CO2, plants absorb it. Keep the environment in balance or suffer sea level rise, droughts, and wildfires!
MAKE YOUR BUILDING LIMIT UP
Think Minecraft doesn't have enough building space? Want to build taller buildings? Try our data pack and you can increase the building limit up to 4064 blocks!!
Mega World Height
Mega World Height expands the Overworld build and generation height, giving you much more vertical space for mining, building, exploration, and custom world generation. By default, Minecraft’s Overworld height is limited to a smalle
Beyond Border Unlocked
Bypass the vanilla worldborder building & combat limitations.
Biome Bound Blocks
Certain building blocks can only be placed in their native biome, encouraging architectural harmony with the environment.
Pandora ReForged
4YR Project building Pandora from the movie Avatar in Minecraft
Abyssal Shop
This Is A Simple Plugin With A Currency And Shop, Auction House, Sell, Gamble, And Operator Commands Such As /givemoney /setmoney /takemoney and also /pay
MHDF-Tools
MHDF-Tools | Dream Tools | ✨ A lightweight portable high performance Bukkit base plugin ✨MHDF-Tools | 梦之工具 | ✨一款轻量化便携高性能的Bukkit基础插件✨
AutoPunish
AutoPunish is an advanced Minecraft punishment plugin that automates warnings, mutes, and bans with a configurable escalation system, web panel, and database support for Spigot/Paper servers.
Duelity
Duelity is a simple Open Source duel plugin made for SMPs and as a base for upcoming Duel servers.
Inventory Profiles Plus
Inventory Profiles Plus is a client-side Fabric mod for custom inventory layouts, including Crystal PvP, Mace PvP, Sword PvP, Axe PvP, building, mining, and survival setups. Quickly sort items, cycle profiles, and keep gear exactly where you want it.
please stop
Defy physics! Please stop removes creative flight drift so you stop when you let go. No more building like you’re wearing socks on a waxed floor.
Home TNT
Creates a new HomeTNT item that allows you to generate a simple village-style house.
Mansion D RPC
Easy to configure to make your Discord Rich Presence better.
Hyeconomy
Diamond economy plugin uses MariaDB for database storage.
Marker Tower Builder
Craft enchanted shovels that build 100-block-high marker towers when dropped. Replaces tower-building hassle with effortless animated FUN!!
GhostBlocks Remastered
Simple Vanilla+ Plugin, useful for building and map creation!
Don's Building Stuff
A collection of tools that makes building insanely enjoyable
OutAuction
🏆OutAuction — Powerful auction house system with stylish GUI, 🔧 fully customizable sounds, and 📜 complete transaction history. 💰 Vault support, 🚫 item blacklist
Arataki's greenhouses
This mod adds a new block, using which you can unload the routine of extracting items of plant origin, because now the greenhouse block will do it for you
WardenEssentials
WardenEssentials is a lightweight and powerful Minecraft server plugin that adds essential quality-of-life commands for admins and players, Perfect for building, server management, and everyday gameplay improvements.
ZA - tools
This mod adds some QoL tools like skythes and building hammers.
ServerRewards
🏆 ServerRewards - A comprehensive Minecraft plugin that rewards players for combat, mining, and building activities with an in-game shop system, milestone rewards, and economy integration to boost engagement and retention.
Deck Of Cards
Tired of building/farming/traveling? Play cards with your friends!
Multi key Loudouts
You can have Multikey Loudouts for example: One for building, One for pvp
Artilide
Artilide is a modpack that attempts to transform Minecraft's balancing and base mechanics to keep survival aspects for late game, along with overhauling exploration as a whole.
Deploy & Destroy
A simple mod that adds some useful tools and a few building blocks.
Dyable Wools
Dyable Wools lets you dye wool directly in crafting tables, making colorful building easier and faster.
Create: Craft 'n Extras
Create: Craft 'n Extras is a lightweight, vanilla-friendly addon for the Create mod that bridges the gap between raw materials and your building palette. It eliminates tedious crafting table grid-spamming by introducing logical, high-efficiency mechanica
Snad Alehouse
Adds a snad that forces Sugar Cane, Cactus, and Bamboo to grow instantly.