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Flawlessly Optimized project artwork

CurseForge · Minecraft modpack

Flawlessly Optimized

[1.21.1 Release] Boost your Minecraft performance with smooth gameplay and essential OptiFine features, all while keeping the game’s original feel.

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

Quick answer

Which Flawlessly Optimized release matches 1.21.4?

Updated 1 year ago
Best match for your filters 1.6.3 for 1.21.4
Game version 1.21.4
Loader Fabric 0.16.10

1.6.3 for 1.21.4 is a complete pack release for 1.21.4 with Fabric 0.16.10. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 43 mods in this pack file.

Pack setup

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

Use 1.6.3 for 1.21.4 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 1.6.3 for 1.21.4
Dedicated server setup Match 1.6.3 for 1.21.4
Pack loader Fabric 0.16.10

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.

Referenced mods 43
Client only 17
Server only 0
Not labelled 26

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 Flawlessly Optimized?

1.6.3 for 1.21.4 on 1.21.4. The pack contents and setup notes below stay tied to that release.

43 mods in this pack file

The selected pack release is 1.6.3 for 1.21.4. That file is for Minecraft 1.21.4 with Fabric 0.16.10. It contains 43 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 Flawlessly Optimized?

FO logo

Flawlessly Optimized

Modrinth Github


🎮Experience Unmatched Performance

Flawlessly Optimized brings you a top-tier Minecraft experience with modern performance mods like Sodium, FerriteCore, and ImmediatelyFast. Enjoy lightning-fast gameplay and smooth visuals, even on low-end hardware.

💎OptiFine Features Included

Our modpack supports essential OptiFine features such as shaders, connected textures, and zoom. If your favorite resource pack requires OptiFine, it will work seamlessly with Flawlessly Optimized. Embrace the power of OptiFine without the need for a separate mod!

🌼Stay True to Vanilla

Flawlessly Optimized ensures you can enjoy Minecraft just as you remember it. Our modpack maintains the core gameplay experience of Vanilla Minecraft, while delivering substantial performance improvements.

📜Built on Fabric

Leveraging the lightweight and fast Fabric mod loader, Flawlessly Optimized is designed to be quick and efficient. We provide support for the latest Minecraft versions, ensuring that you always have access to the newest features and improvements.

🧑‍💻Open Development

Flawlessly Optimized is open-source and hosted on GitHub. This transparency allows you to view the code, contribute to the project, and help us make the modpack even better. We value community input and collaboration in our development process.

🔄️Rapid Updates

We prioritize keeping up with Minecraft’s latest updates. Flawlessly Optimized receives frequent updates to ensure compatibility with the newest game versions and features, allowing you to enjoy the latest content and improvements.

⚙️Customize Your Experience

While Flawlessly Optimized delivers exceptional performance out of the box, it also offers freedom for you to add your favorite mods. Build your own custom modpack based on our foundation to tailor your Minecraft experience to your liking.

👐Join Us Today!

Be part of our vibrant community of Minecraft enthusiasts. Share your feedback, contribute to development, and make the most of your Minecraft adventures with Flawlessly Optimized.

🆙Versioning

The versioning format is x.y.z-<pre-release>-<MC version>, where

  • x: MAJOR version (1.21 was 1.y.z, 1.22 was 2.y.z)
  • y: MINOR version (Big updates - Mod addition/removal)
  • z: PATCH version (Small changes - Micro Config Update,Mod Updates)
  • pre-release: For untested,breaking changes,not ready for use versions (Values: alpha,beta)
  • the MC version taken is the minor release the version of Flawlessly Optimized is for.

x.y.z is reset to x.0.0 for every new MC release as different MC versions are very likely to have different mod sets available for them.

This is a continuation of the modpack. If you need old versions of the game, go here

Project description from CurseForge.

Mods in 1.6.3 for 1.21.4

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

BadOptimizations-2.2.1-1.21.2-21.4.jar SHA-1 8bafe2a3ce1a3c6c48bb243dde3cbd9c5b510a01 · CurseForge file 5961453 · Project link unavailable Client only
BetterGrassify-1.4.4+fabric.1.21.4.jar SHA-1 d03b4a9af5b7e3bf4b087018b5955090732ef510 · CurseForge file 6071590 · Project link unavailable Side not labelled
bettermounthud-1.2.5.jar SHA-1 8ec8cc4a44623d696568870f7a226e2d30fc7af8 · CurseForge file 5985862 · Project link unavailable Client only
capes-1.5.4+1.21.4-fabric.jar SHA-1 76d57b3182ed0149c4182f795d8a29e2abbd07cc · CurseForge file 5960083 · Project link unavailable Side not labelled
cloth-config-17.0.144-fabric.jar SHA-1 63a1a3b25c642f5a745dfcc9bdc0841660f560af · CurseForge file 5987042 · Project link unavailable Side not labelled
continuity-3.0.0+1.21.4.jar SHA-1 7b22feac8ca586a8c371324cb83abe5546b22d45 · CurseForge file 6027976 · Project link unavailable Client only
cwb-fabric-3.0.0+mc1.21.3.jar SHA-1 101dffee2666b23e51c1b7e810e9455a5c41a0de · CurseForge file 5855570 · Project link unavailable Side not labelled
Debugify-1.21.4+1.1.jar SHA-1 ca7bf4d2bf863953c0265024619b536638827e8e · CurseForge file 6091341 · Project link unavailable Side not labelled
dynamic-fps-3.8.0+minecraft-1.21.2-fabric.jar SHA-1 a21bec4d0b9ab3594fef9fa7453c12f5133051b8 · CurseForge file 6210833 · Project link unavailable Client only
enhancedblockentities-0.11.3+1.21.4.jar SHA-1 261b0e79ffbb79f9b708827333bd745620ebbec0 · CurseForge file 6105228 · Project link unavailable Client only
entity_model_features_fabric_1.21.4-2.4.1.jar SHA-1 6e57d7ed97ccdec9f86766d915915007d35c138f · CurseForge file 6001154 · Project link unavailable Client only
entity_texture_features_fabric_1.21.4-6.2.10.jar SHA-1 8ad00f1cb33f3b537e836ef8dc1195a811480316 · CurseForge file 6045344 · Project link unavailable Client only
entityculling-fabric-1.7.2-mc1.21.4.jar SHA-1 a8b87f259682580d558f793ed99be44d55f06c0f · CurseForge file 5968862 · Project link unavailable Side not labelled
fabric-api-0.118.0+1.21.4.jar SHA-1 ca9702e27078db7c2c9d28899a2c4bd136bd5e12 · CurseForge file 6214360 · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.1+kotlin.2.1.10.jar SHA-1 b28cc99b01aef86d0d6ca3ea7f468512bd0595c4 · CurseForge file 6133024 · Project link unavailable Side not labelled
fabrishot-1.14.3.jar SHA-1 c56d65e1d86af890babcf2819d0f3c2113ce1e3d · CurseForge file 6094683 · Project link unavailable Side not labelled
fastquit-3.0.0+1.21.4.jar SHA-1 44e32d51d5ee75d9aaf5947394714af0640d798d · CurseForge file 6178917 · Project link unavailable Client only
ferritecore-7.1.1-fabric.jar SHA-1 ee08ca5fd2a7a02dbade048745533b5570a826f0 · CurseForge file 5973419 · Project link unavailable Side not labelled
ForgeConfigAPIPort-v21.4.1-1.21.4-Fabric.jar SHA-1 3dbbaddb4df5533b7b806c82c27cfb389f5bef54 · CurseForge file 5982393 · Project link unavailable Side not labelled
ImmediatelyFast-Fabric-1.3.4+1.21.4.jar SHA-1 ad5b284586f7ee1b53524d6f690d447aaaae5bec · CurseForge file 6124875 · Project link unavailable Client only
iris-fabric-1.8.8+mc1.21.4.jar SHA-1 54f7ab6450530bdca2ba44887b53458f78a256ef · CurseForge file 6213644 · Project link unavailable Client only
lambdynamiclights-4.0.1+1.21.4.jar SHA-1 25164bd8de975951a75ff848080fbdd5177f0238 · CurseForge file 5981285 · Project link unavailable Client only
language-reload-1.7.2+1.21.4.jar SHA-1 8619f6169819b45a8f3fe533cdf0c9ab3adc4d0b · CurseForge file 5976989 · Project link unavailable Side not labelled
lithium-fabric-0.14.8+mc1.21.4.jar SHA-1 0ce5b620b9dc469f83c5e044196fdeb8da0932d3 · CurseForge file 6211585 · Project link unavailable Side not labelled
main-menu-credits-1.2.0.jar SHA-1 c70e6b5d94958c6b3fc668b7c9622e9a4788b806 · CurseForge file 5287107 · Project link unavailable Client only
mixintrace-1.1.1+1.17.jar SHA-1 7fbb0130db0e427ee7180d304dfa65c46f0e3b69 · CurseForge file 3831043 · Project link unavailable Side not labelled
modelfix-1.21.3-1.10-fabric.jar SHA-1 3f4d67c87d0a6e8c323f443635013bfd58b8872d · CurseForge file 5972532 · Project link unavailable Side not labelled
modernfix-fabric-5.20.3+mc1.21.4.jar SHA-1 46dabb966c9772daf5d3af20fbadc8f2fbcbeb18 · CurseForge file 6171685 · Project link unavailable Side not labelled
modmenu-13.0.2.jar SHA-1 ef2512f29363f3a8d3a9cb92ba43eca3c689b8c4 · CurseForge file 6183599 · Project link unavailable Side not labelled
morechathistory-1.3.1.jar SHA-1 b4337ef9dc0a6cdf31d8f3df68a6542f64f3625e · CurseForge file 5286193 · Project link unavailable Client only
moreculling-fabric-1.21.4-1.2.7.jar SHA-1 021aa7404766b21f9b9a99567801889ad3d9154b · CurseForge file 6214805 · Project link unavailable Side not labelled
NoChatReports-FABRIC-1.21.4-v2.11.0.jar SHA-1 9fc63f45ee0f157fd161f57f2af1db20ae603918 · CurseForge file 5968575 · Project link unavailable Side not labelled
noisium-fabric-2.5.0+mc1.21.4.jar SHA-1 4adbf542d5dd586fe8a458202bfeebd757dfd2f6 · CurseForge file 5988358 · Project link unavailable Side not labelled
optigui-2.3.0-beta.7+1.21.2.jar SHA-1 45309097bdabd12c1f9334b1499aed292233009a · CurseForge file 5978702 · Project link unavailable Side not labelled
polytone-1.21.4-3.2.11-fabric.jar SHA-1 4af9bd0db52dab6d5aa90e61d6109b35df773fea · CurseForge file 6177802 · Project link unavailable Side not labelled
puzzle-fabric-2.0.4+1.21.4.jar SHA-1 625be42b9b8d405f660c7498799d3cfc7647412e · CurseForge file 5969049 · Project link unavailable Side not labelled
reeses-sodium-options-fabric-1.8.3+mc1.21.4.jar SHA-1 c72f07a8f139f0420cbce29bd9eb29fb24db427f · CurseForge file 6091019 · Project link unavailable Client only
rrls-5.1.1+mc1.21.4-fabric.jar SHA-1 5515dd4237ea6190a301a5a5f7c850172e148bbe · CurseForge file 6195255 · Project link unavailable Side not labelled
sodium-extra-fabric-0.6.1+mc1.21.4.jar SHA-1 c3bd0d2121653fec3c0f82a841d88e85e87f9796 · CurseForge file 5961075 · Project link unavailable Client only
sodium-fabric-0.6.9+mc1.21.4.jar SHA-1 62d932489bd06c3d41fde44726d0e2ec0482ed9d · CurseForge file 6211318 · Project link unavailable Client only
YetAnotherConfigLib-3.6.2+1.21.4-fabric.jar SHA-1 1394c363dee8a2ba53981a7b1135c1e882fa15f1 · CurseForge file 5963248 · Project link unavailable Side not labelled
yosbr-0.1.2.jar SHA-1 f0340e9c0bc95d67f3f3e9c1cd79b61054af11f9 · CurseForge file 4581910 · Project link unavailable Side not labelled
Zoomify-2.14.2+1.21.3.jar SHA-1 736e8888664701b86042e10bea357aa9af583c35 · CurseForge file 5838117 · Project link unavailable Client only

Pick your setup

Flawlessly Optimized by Minecraft version and loader

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

3 available setups

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

Recent files

Flawlessly Optimized versions and loaders

1 of 3 releases match
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Looking for an older file? The official CurseForge project page is in Resources.