Krypton Reforged
Modby Txni
Unofficial Forge Port of the server networking performance mod "Krypton"
Type
Mod
CurseForge Downloads
42,335,945
CurseForge ID
549394
Last Updated
Sep 11, 2026
Description
THIS IS AN UNOFFICIAL FORGE PORT.
Please direct bug reports, questions, and everything else to the Github page linked to this Curseforge page, not the Fabric mod. The original maintainer, Tuxed, will not be providing any support for this port.
Krypton optimizes the Minecraft networking stack, meaning it mostly improves server performance with lots of clients, but is also required on the client. It derives from work done in the Velocity and Tuinity projects. Krypton contains several optimizations, including:
- Highly optimized Netty handlers derived from the Velocity proxy.
- Flush consolidation to lower server CPU usage (and reducing the impact from hardware security vulnerabilities which exploit speculative execution) and lower server tick times.
- Micro-optimizations to reduce memory usage and improve packet serialization speeds.
As for this port, it should be compatible with almost everything, as it's just a few mixins. Anything that modifies the networking stack may cause issues, but these patches are low level optimizations and unlikely to cause problems. There were issues however using jar-in-jar on 1.16, so the Velocity natives are packaged using Shade. This also seems to have packaged a few other duplicate Netty classes even with jar minimization and exclusion. It seems to work fine regardless, but if it breaks loading these classes somehow, or if anyone knows how to fix this, let me know.
Recommended Gear
AffiliateHardware and extras that pair well with this mod.
As an Amazon Associate I earn from qualifying purchases.
Similar Mods
Bookshelf
An open source library for other mods!
Clumps
Clumps XP orbs together to reduce lag
Entity Culling Fabric/Forge
Using async path-tracing to hide BlockEntities/Entities that are not visible
Sodium
The fastest and most compatible rendering optimization mod for Minecraft. Now available for both NeoForge and Fabric!
JourneyMap
Real-time map used for mapping in-game or your browser as you explore.
Xaero's Minimap
Displays the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which...
Included in Modpacks (347)
Show fewer
Superhero+more rpg adventure
RarYTerr. The bad days
Firearms N' Dungeons: Fired Up
Worlds Unbound
Create - Technomancy
The most accurate Wither Storm
JBA Origins
The Mainding - SaluoMT - Rutboy12
OvermoddedCraft
Daldon's Immersive Survival
DLI Moderately Modded Minecraft, Meals, Magic & Machinery
Crafting and Many More
Pherocraft
![RossAndrewsVT's Medieval Project [Discontinued]](https://media.forgecdn.net/avatars/1202/625/638779851698869072.webp)
RossAndrewsVT's Medieval Project [Discontinued]
A Place to Call Home
Berzerkish Horror RPG
Tech and Guns: Zombie warfare
AstralisProject!
She Asked for Cozy, I Installed Create
Darkness & Dragons 2
OEV4-BZ46-1A97-7EPP
YumemaSmpSuperHeroes
Camp Half Blood 2
Dimmas91: Legacy of Creation
OceanCastle-Modded Adventure
Ducky's Fantasy
Kingdom's Unbound Official Pack
ratt.co colonies
Kemalgrad Create & Towny
ALCHEMIST RPG
Community in the Skies (with Origins)
team pkb pack
Tuchebander Adventures
Homehaven
![The Outlanders [FORGE]](https://media.forgecdn.net/avatars/1369/458/638889115598226159.png)
The Outlanders [FORGE]
SCBEE
Breaking Glass
SAJU
NerdyCraft Recaffeinated
Eclipsed Wyrm
Notazia 2
Experium - VT
Craft Mizyen
NotYourAvragePack
Most of Create
Tula Grande
Re:Slime Reincarnated