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Just Optimized project artwork

Modrinth · Minecraft modpack

Just Optimized

Speeds up the game performance by a lot for both client and server

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

Quick answer

Which Just Optimized release matches 1.21.3?

Updated 3 days ago
Best match for your filters Just Optimized
Game version 1.21.3
Loader Fabric 0.20.1

Just Optimized is a complete pack release for 1.21.3 with Fabric 0.20.1. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 35 mods in this pack file.

Pack setup

How should I set up Just Optimized for players and a server?

Use Just Optimized 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 Just Optimized
Dedicated server setup Match Just Optimized
Pack loader Fabric 0.20.1

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 35
Client only 18
Server only 3
Not labelled 14

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 Just Optimized?

Just Optimized on 1.21.3. The pack contents and setup notes below stay tied to that release.

35 mods in this pack file

The selected pack release is Just Optimized. That file is for Minecraft 1.21.3 with Fabric 0.20.1. It contains 35 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 Just Optimized?

The modpack tries to optimize the game in a way to keep the vanilla parity and optimizations as high as possible. I do my best in updating the modpack and keeping things as clean as possible.

Features
  • Higher FPS using modern optimization mods
  • Faster chunk generation and loading times
  • Lower RAM usage
  • Better performance in both singleplayer and multiplayer
  • Improved graphics settings and cleaner configuration menus
  • Smarter culling to reduce unnecessary rendering
  • Clean, lightweight, and regularly updated
726 FPS at 32 Render Distance
  • Specs: Intel Core i5-12400F & NVIDIA GeForce RTX 3060
  • World Seed: 3354544725867848366
  • Modpack Version: 26.3-1.0.9

32 render distance benchmark

Included Optimizations

The pack combines a bunch of well-known optimization mods, including:

  • Sodium
  • Lithium
  • FerriteCore
  • ModernFix
  • C2ME
  • ImmediatelyFast
  • Entity Culling
  • Better Block Entities
  • More Culling
  • Very Many Players
  • ServerCore

...and various other performance mods and libraries.

Project description from Modrinth.

Mods in Just Optimized

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

alternate-current-mc1.21.2-1.9.1.jar SHA-1 a6f82f98db09439b166863f6f307a02651d8a7c3 · Modrinth version DwfiGUVU · Project link unavailable Server only
BadOptimizations-2.4.1-1.21.2-21.5.jar SHA-1 f3ac49d4866a6fde8623c0021481285dc1d3d2b8 · Modrinth version KsC2V6FQ · Project link unavailable Client only
betterbiomeblend-1.5.2.jar SHA-1 c6528c9760ecfd2987484aabe54c3d26e931e3a7 · Modrinth version HZlLCOct · Project link unavailable Client only
BetterRenderDistance-1.2.0+mc1.21.2-1.21.3.jar SHA-1 345b92e1879ac2a94e42749c4e054ea039efad8d · Modrinth version kxaXT5q0 · Project link unavailable Client only
c2me-fabric-mc1.21.3-0.3.1+alpha.0.45.jar SHA-1 07afa833ab7df01f78792fd55341379536c009c7 · Modrinth version qlfE3r3C · Project link unavailable Side not labelled
cloth-config-16.0.143-fabric.jar SHA-1 59bae445dc49e10b5717a3ae253b12b983ed1f49 · Modrinth version FgXq8Sfo · Project link unavailable Side not labelled
cullleaves-fabric-3.4.0.jar SHA-1 e80558a23a573f820375abffece181febd3e7509 · Modrinth version JnCn3KSm · Project link unavailable Client only
entityculling-fabric-1.11.3-mc1.21.3.jar SHA-1 a3720c40555ecb0f9c7a94afb1387254dd9f7f81 · Modrinth version BP4eGW1o · Project link unavailable Client only
fabric-api-0.114.1+1.21.3.jar SHA-1 d1ffd05bd3bea0949ada538fa3b1aead57053330 · Modrinth version wLq4rGsB · Project link unavailable Side not labelled
fabric-language-kotlin-1.14.2+kotlin.2.4.21.jar SHA-1 f1d4ab6ecd54d9782521333a87eb50724ecb03e0 · Modrinth version SKW1BTL3 · Project link unavailable Side not labelled
fastquit-3.0.0+1.21.3.jar SHA-1 ed899a5ac62effb86b3658838fe60c28c9476854 · Modrinth version 880U5Kcb · Project link unavailable Client only
ferritecore-7.1.0-hotfix-fabric.jar SHA-1 065410c520d858893c8f130d32f63a11317d6119 · Modrinth version a3QXXGz2 · Project link unavailable Side not labelled
ForgeConfigAPIPort-v21.3.5-1.21.3-Fabric.jar SHA-1 2f048a993e3502fa5d35e2e235df2baa3eedcbdd · Modrinth version NYPJWyPs · Project link unavailable Side not labelled
fzzy_config-0.7.7+1.21.3.jar SHA-1 692dc9d8c04f447233e1f52fd41983799b155772 · Modrinth version xWTpuhvN · Project link unavailable Side not labelled
ImmediatelyFast-Fabric-1.7.2+1.21.3.jar SHA-1 83376c91cc4c48ea7fb6f18d80c7033ad345afc2 · Modrinth version 2zcdbf00 · Project link unavailable Client only
iris-fabric-1.8.1+mc1.21.3.jar SHA-1 8a619bc45540a4f3eeff17d9427bbd343669f291 · Modrinth version xQYJAYTI · Project link unavailable Client only
krypton-0.2.8.jar SHA-1 73e792eb5f120787becda4b87b6ff18b26caea50 · Modrinth version Acz3ttTp · Project link unavailable Side not labelled
language-reload-1.7.6+1.21.3.jar SHA-1 a58ce13c08c4041d8f739695640f21ad4eff50be · Modrinth version YD5x4AJP · Project link unavailable Client only
lithium-fabric-0.14.6+mc1.21.3.jar SHA-1 60bcb667e8cce63b564837eb7ae6d88ae80bd2bc · Modrinth version W0Cc7ZVd · Project link unavailable Side not labelled
modmenu-12.0.1.jar SHA-1 32a4d57de36fb741d69676c158bcca1888ade384 · Modrinth version fzwJOLlA · Project link unavailable Client only
moreculling-fabric-1.21.3-1.1.1.jar SHA-1 ce5d397a26e63bf4beb966cbda25cbca9b64afa2 · Modrinth version byrWCZgY · Project link unavailable Client only
obe+1.21.3-1.1.52.jar SHA-1 baaff0135c9d18e90b7adebec3eba2fd48968891 · Modrinth version cGCX4Idt · Project link unavailable Client only
particle_core-0.3.3+1.21.2.jar SHA-1 779f5fa06b86458d4a033a0294b24841ec3e67af · Modrinth version 8nURGsqe · Project link unavailable Client only
placeholder-api-2.5.2+1.21.3.jar SHA-1 841b1ef57880fc0f94a22ab268b737c3830b5595 · Modrinth version eeN3FuMY · Project link unavailable Side not labelled
reeses-sodium-options-fabric-1.8.3+mc1.21.4.jar SHA-1 c72f07a8f139f0420cbce29bd9eb29fb24db427f · Modrinth version KoUrx3jJ · Project link unavailable Client only
rrls-5.0.11+mc1.21.3-fabric.jar SHA-1 6a605913a453845a18b6a38d5b9445374bcb86e1 · Modrinth version 4kb30Vsy · Project link unavailable Client only
ScalableLux-0.1.2+beta.1+fabric.6d46f24-all.jar SHA-1 eb8c871d57e786b65ba4c462cd34940700e4d3a9 · Modrinth version otxwJ9w3 · Project link unavailable Side not labelled
servercore-fabric-1.5.8+1.21.3.jar SHA-1 31d72428277bb1d82409250d2f3157b6626b82ee · Modrinth version PgKTFLEL · Project link unavailable Server only
sodium-extra-fabric-0.6.0+mc1.21.3.jar SHA-1 823f6010519b0ac30b3edbfa814a3c083c31928f · Modrinth version ZQ3k4KzW · Project link unavailable Client only
sodium-fabric-0.6.7+mc1.21.3.jar SHA-1 41c1e03d9988d938e540f0989cd83636a517f3a7 · Modrinth version fRVuPyyt · Project link unavailable Client only
Stfu-2.5.4.jar SHA-1 6dfdab18c0881a074b8fb2d6ac608fe2cadea9bb · Modrinth version 6zkRz9dz · Project link unavailable Client only
vmp-fabric-mc1.21.3-0.2.0+beta.7.181-all.jar SHA-1 234f6b740197c641af8910ef1702442157c9c2f8 · Modrinth version 9jPWZqdL · Project link unavailable Side not labelled
yet_another_config_lib_v3-3.8.2+1.21.3-fabric.jar SHA-1 2741a54fc954d056b2e79b9ac63e7c4bdae91079 · Modrinth version 2lffyjXX · Project link unavailable Side not labelled
zconfig-1.0.0+1.21.x.jar SHA-1 cb9fe03e6f64b900317d7edf305c1d7d43412a60 · Modrinth version yD19P1nG · Project link unavailable Side not labelled
zfastnoise-1.0.14+1.21.jar SHA-1 7e9ce65d3e1e92940449fcab815563cb1e7ca1a8 · Modrinth version 73DMCY3S · Project link unavailable Server only

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Just Optimized by Minecraft version and loader

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51 available setups

Showing the newest 12 of 49 game versions. Older files are in the list below.

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

Recent files

Just Optimized versions and loaders

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