Mods for 1.21.3
1,036 mods match your filters.
Shows a GUI after Minecraft crashes, immediately showing and analyzing all affected logs.
Pre-generates chunks, quickly and efficiently
A mod that aims to optimize the minecraft server.
Gamers can finally touch grass!? OptiFine's Fancy and Fast better grass implemented on Fabric and NeoForge!
Particle optimizations: Culling, rendering optimizations, configurable particle-type-specific spawn reduction, and potion particle disabling. Compatible with Sodium, improves performance over Sodium alone.
A Fabric mod designed to improve server performance at high playercounts.
A Fabric mod based on Starlight that improves the performance of light updates in Minecraft.
Performance improvements for vanilla AI, with the ability to turn off certain AI behaviors
See your held items as you row your boat!
Quick leaf decay from cutting down trees. Built for fast performance and mod compat!
Buffered raw input and threaded event polling
An efficient and non-locational redstone dust implementation
Improve and tweak Minecraft thread scheduling. Fork of Smooth Boot for ≥1.20
Adds culling to leaf blocks, providing a huge performance boost over vanilla.
Changes the renderer of the bed to use json models instead of a block entity renderer!
Speed up your world loading by removing unneeded chunks.
Vanilla Worldgen optimization mod
Instantly closes the loading terrain screen on world changing and drastically reduces the resource pack loading screen duration
Reduce GPU and CPU usage automatically when no user operation exists.
Provides DSA & fastest math formulas to game render system for best perfomance! Compatible with Sodium/Embeddium, Iris and shaders.
A modpack utility mod that allows to disable spawning of any entity.
Render the GUI and screens at a lower framerate to speed up what's really important: the worldrendering.
Beautiful clouds in touch with the vanilla style
Vulkan renderer mod for Minecraft.