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UltraFast project artwork

CurseForge · Minecraft modpack

UltraFast

A fast, lightweight modpack focused heavily on performance with a ton of optimization mods, plus a few QoL mods.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which UltraFast release should I use?

Updated today
Latest stable file UltraFast 1.2.1
Game version 1.20.4
Loader Fabric 0.19.5

UltraFast 1.2.1 is a complete pack release for 1.20.4 with Fabric 0.19.5. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 39 mods in this pack file.

Pack setup

How should I set up UltraFast for players and a server?

Use UltraFast 1.2.1 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install UltraFast 1.2.1
Dedicated server setup Match UltraFast 1.2.1
Pack loader Fabric 0.19.5

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Plan the server requirements Read the Minecraft installation guide
Referenced mods 39
Client only 14
Server only 0
Not labelled 25

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for UltraFast?

UltraFast 1.2.1. Change the pack release and its contents or setup may change too.

39 mods in this pack file

The selected pack release is UltraFast 1.2.1. That file is for Minecraft 1.20.4 with Fabric 0.19.5. It contains 39 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is UltraFast?

UltraFast is a modpack built for performance and optimization, paired with a few QoL mods to keep your game running as smooth as possible without changing how vanilla Minecraft plays.

  • All mods should be client side, so you can use this modpack for anything multiplayer related.

  • Chunky Included: The pack comes with the Chunky mod pre-installed. You can use it to pregenerate chunks, which massively improves chunk loading performance and cuts down on lag spikes when exploring.

  • Shaders: Feel free to add any shaders you'd like, if you'd like to use shaders, switch the default graphics API in settings from Vulcan to OpenGL, restart your game, then toggle on the shaders.

Project description from CurseForge.

Mods in UltraFast 1.2.1

Open any mod on Modpacks.ch to check its files and dependencies.

almanac-1.20.x-fabric-1.0.2.jar SHA-1 0f31abe886e9785592f1896c7c1ffe5992e2c6de · CurseForge file 5803513 · Project link unavailable Side not labelled
appleskin-fabric-mc1.20.3-2.5.1.jar SHA-1 d8c8f47cadf0bec89b0539f44e3c67df73d8e048 · CurseForge file 4953893 · Project link unavailable Side not labelled
BadOptimizations-2.4.1-1.20.2-20.4.jar SHA-1 7e378c958ae27cfb7278ea69c8195c67a17e34aa · CurseForge file 7338244 · Project link unavailable Client only
BetterF3-9.0.2-Fabric-1.20.4.jar SHA-1 780ae4f29fb249c3f6be75724b3084a075ec36cb · CurseForge file 5199614 · Project link unavailable Side not labelled
BetterGrassify-1.4.4+fabric.1.20.1.jar SHA-1 76e1e92f1ed91ef31e4c70ca62186494b2683604 · CurseForge file 6071599 · Project link unavailable Side not labelled
c2me-fabric-mc1.20.4-0.2.0+alpha.11.72.jar SHA-1 cb60c6a25b5a77fd57f18bb1fd978bb13601c6d5 · CurseForge file 5617430 · Project link unavailable Side not labelled
centered-crosshair+1.20.4-1.0.6.jar SHA-1 ed0f24336233f838fc11113c58c0245f0720fd42 · CurseForge file 5069036 · Project link unavailable Client only
chatanimation-1.0.5.jar SHA-1 da00b90a05428c704ff29adbca52478ed086d0ec · CurseForge file 4999734 · Project link unavailable Client only
cherishedworlds-fabric-8.0.1+1.20.4.jar SHA-1 c0b62b532831ad793dcb519520c75701486d135e · CurseForge file 5161437 · Project link unavailable Side not labelled
Chunky-1.3.146.jar SHA-1 b5672d69dc2b210ab2165a27afc03a424fa2b46a · CurseForge file 5320021 · Project link unavailable Side not labelled
cloth-config-13.0.138-fabric.jar SHA-1 e374f80329cea3d73e10e31839fe79d5a4fc0b30 · CurseForge file 5729136 · Project link unavailable Side not labelled
Clumps-fabric-1.20.4-15.0.0.2.jar SHA-1 87fe810f25cba498da0055ccb4fd7812a6f23ddd · CurseForge file 5025925 · Project link unavailable Side not labelled
ConfigManager-fabric-1.20.1-1.20.4-1.1.1.jar SHA-1 1e9a7217b2beb2828a2e076b71f0ed319f61831f · CurseForge file 7494525 · Project link unavailable Side not labelled
continuity-3.0.0+1.20.2.jar SHA-1 d99ae792024c9ef21c2da8481b3e9e474bdfbe0c · CurseForge file 5962879 · Project link unavailable Client only
Debugify-1.20.4+1.1.jar SHA-1 248cd69236eed33faca6a08c4ba535c7249a0528 · CurseForge file 5225661 · Project link unavailable Side not labelled
dynamic-fps-3.11.4+minecraft-1.20.2-fabric.jar SHA-1 343a82a585d26612ee31da3a9dae80edfa53a9ed · CurseForge file 7546914 · Project link unavailable Client only
entityculling-fabric-1.11.3-mc1.20.4.jar SHA-1 c65e977d4475534ad2e1a533c10d4f8eacae094b · CurseForge file 9100274 · Project link unavailable Client only
fabric-api-0.97.3+1.20.4.jar SHA-1 a21f3c7e700b9fc3a28e896979a07ec489507143 · CurseForge file 6674317 · Project link unavailable Side not labelled
fabric-language-kotlin-1.14.2+kotlin.2.4.21.jar SHA-1 f1d4ab6ecd54d9782521333a87eb50724ecb03e0 · CurseForge file 9106173 · Project link unavailable Side not labelled
ferritecore-6.0.3-fabric.jar SHA-1 f2bbb773f4213d36201b76820f206e2a6f213c0c · CurseForge file 4954177 · Project link unavailable Side not labelled
fzzy_config-0.5.9+1.20.4.jar SHA-1 6fcd0386f902bf0fe7b9310f55fb628172eafa6d · CurseForge file 5969724 · Project link unavailable Side not labelled
ImmediatelyFast-Fabric-1.5.5+1.20.4.jar SHA-1 9f0110b60dc752ca093f2fc10a72d221b6dc8ac3 · CurseForge file 8348480 · Project link unavailable Client only
iris-1.7.2+mc1.20.4.jar SHA-1 acc785418e034a265f99fdb341fbb3b5af3859c8 · CurseForge file 5485655 · Project link unavailable Client only
Ixeris-4.6.8+1.20.4-fabric.jar SHA-1 09fb43cbdfa84fba0734f378e0ca5ddc56dadcf3 · CurseForge file 8939529 · Project link unavailable Client only
lambdynamiclights-2.3.4+1.20.4.jar SHA-1 b44b10647f170732825b28d8ff44735ae31e3837 · CurseForge file 5083619 · Project link unavailable Side not labelled
lithium-fabric-mc1.20.4-0.12.1.jar SHA-1 4a0744beb2246d93cb475d21a5a53faa556956e0 · CurseForge file 4972281 · Project link unavailable Side not labelled
modmenu-9.2.0.jar SHA-1 b8b1e21d42e74c1b4ea16e9846c2198dc84352bc · CurseForge file 5441535 · Project link unavailable Side not labelled
moreculling-1.20.4-0.24.0.jar SHA-1 a40f2aa346140a4fee2079d845c62ee87454bdb6 · CurseForge file 6036308 · Project link unavailable Client only
MouseTweaks-fabric-mc1.20-2.26.jar SHA-1 6a6b977e671b1ab625e740fc70fb5300c21bb841 · CurseForge file 5230279 · Project link unavailable Client only
notenoughcrashes-4.4.7+1.20.4-fabric.jar SHA-1 1a40f3c15b7e02702805022c12c1cc790ae70400 · CurseForge file 5083301 · Project link unavailable Side not labelled
packetfixer-3.3.2-1.18-1.20.4-merged.jar SHA-1 79ebc5e66a5ee3ce92afb340e693d506e97361a0 · CurseForge file 7872374 · Project link unavailable Side not labelled
particle_core-0.2.5+1.20.4.jar SHA-1 1fa6361dd77189bcd4f301f52dafba0ee6d7a7c9 · CurseForge file 5729688 · Project link unavailable Side not labelled
reeses_sodium_options-1.7.2+mc1.20.4-build.102.jar SHA-1 5e2f4ad814f34e2f55fda4efa30c878c5e573978 · CurseForge file 5075467 · Project link unavailable Client only
servercore-fabric-1.5.0+1.20.4.jar SHA-1 b83b3faf73dd03aa26e75aa151726c00a772acf3 · CurseForge file 5230960 · Project link unavailable Side not labelled
sodium-extra-0.5.4+mc1.20.4-build.116.jar SHA-1 5cdad24baaac7c254e07205aef6052946f4a5246 · CurseForge file 5063878 · Project link unavailable Client only
sodium-fabric-0.5.8+mc1.20.4.jar SHA-1 4c38d7b01660a27a98406767c613b3f28b6c9dfe · CurseForge file 5092261 · Project link unavailable Client only
yet_another_config_lib_v3-3.6.6+1.20.4-fabric.jar SHA-1 5701869f7eafe1c85306575c19c634d5c1dc3061 · CurseForge file 6336638 · Project link unavailable Side not labelled
zfastnoise-1.0.13+1.20.jar SHA-1 1af0f61450c42b2708d61c29d6dcdb795d7ff199 · CurseForge file 8395692 · Project link unavailable Side not labelled
zoomify-2.15.2+1.20.4.jar SHA-1 9996adf007971e3688d049d943753b28a5fec2e7 · CurseForge file 7591958 · Project link unavailable Side not labelled

Pick your setup

UltraFast by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

9 available setups

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

UltraFast versions and loaders

11 of 11 releases match

Looking for an older file? The official CurseForge project page is in Resources.

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