Mods for 1.21.3
2,049 mods match your filters.
A builder-based configuration library for Minecraft!
Placeholder and Text manipulation library for your Minecraft mods.
Reduce resource usage while Minecraft is in the background, idle, or on battery.
Makes chat unreportable (where possible)
Enhance your Minecraft with one simple mod. Host worlds for free, chat with friends, and so much more!
Config API with automatic GUIs, powerful validation options, server-client sync, and more!
Shows a GUI after Minecraft crashes, immediately showing and analyzing all affected logs.
Ship default options or keybinds without having to overwrite an existing options.txt.
Particle optimizations: Culling, rendering optimizations, configurable particle-type-specific spawn reduction, and potion particle disabling. Compatible with Sodium, improves performance over Sodium alone.
See your held items as you row your boat!
The all-in-one tool for editing Minecraft Worlds.
In-game resource pack, data pack and shader browser and updater.
A Minecraft Map Editor... that runs in-game! With selections, schematics, copy and paste, brushes, and scripting. Use it in creative, or use it temporarily in survival.
Adds your main inventory, potion effects and your equipments to your HUD. And few other features.
📦 Give all new players joining the world configurable starter gear, items and/or potion effects. It can overwrite the initial inventory, or add the items after. Compatible with FTB Team Islands.
Allows you to rotate, balance or clear crafting grids by the press of a button.
Expand health, armor and armor toughness bars beyond vanilla. Nice and compact without confusing colors.
Speed up your world loading by removing unneeded chunks.
A simple and configurable mod that makes all (even datapacks and modded) structures more spread out (or more common!), essentially making them rarer/easier to find. Useful in big modpacks with a lot of structures mods to encourage exploration
JEI/REI/EMI plugin that displays breeding information
Remaps logged stacktraces to readable mappings
Config Manager is a Minecraft mod that allows modpack developers to ship configuration files without messing with the user's preferences
Changes the default server compatibility check to compare modpack versions
🔒 Sets a difficulty in any world, optionally locked, or force a hardcore mode requirement.