Mods for 1.21.9
258 mods match your filters.
Memory usage optimizations
A builder-based configuration library for Minecraft!
Food/hunger-related HUD improvements
View Items and Recipes
A working voice chat in Minecraft!
Shows information about what you are looking at. (Hwyla/Waila fork for Minecraft 1.16+)
Makes chat unreportable (where possible)
A mod to optimize the Minecraft networking stack
Clumps XP orbs together to reduce lag
Massively increase render distance without harming performance.
A simple mod to fix various problems with packets, nbt and timeouts.
Common library providing a lightweight configuration system
spark is a performance profiler for Minecraft clients, servers and proxies.
A fork of Mozilla's Rhino library, modified for use in mods
Pre-generates chunks, quickly and efficiently
TheCSDev's personal library mod for the Minecraft modding environment.
When crashing, you can go back to the title screen and keep playing, without needing to restart, alongside other things to make crashes more pleasant.
Real-time map used for mapping in-game or your browser as you explore.
The all-in-one tool for editing Minecraft Worlds.
Config menus for resource packs
Improve and tweak Minecraft thread scheduling. Fork of Smooth Boot for ≥1.20
A fork of ModernFix that adds minor version update support.
Allows you to rotate, balance or clear crafting grids by the press of a button.
A Mod that prevents ticking-related crashes from bricking worlds