
Modrinth · Minecraft modpack
Optim
Optim is a Fabric modpack that aims to provide maximum performance with some common quality-of-life modifications to the game.
Quick answer
Which Optim release matches 1.21.1 Fabric?
v1.7.0 is a complete pack release for 1.21.1 with Fabric 0.16.4. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 71 mods in this pack file.
Pack setup
How should I set up Optim for players and a server?
Use v1.7.0 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.
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.
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 Optim?
v1.7.0 on 1.21.1 Fabric. The pack contents and setup notes below stay tied to that release.
The selected pack release is v1.7.0. That file is for Minecraft 1.21.1 with Fabric 0.16.4. It contains 71 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 Optim?

Optim
Optim is a Fabric modpack that aims to provide maximum performance with some common quality-of-life modifications to the game. It is a highly opinionated selection of mods I intentionally handpicked to share my improved experience with the wider Minecraft community.
🌟 Features
Main Features
- Vanilla Parity - Doesn't add any new content to the game as it aims to be compatible with all Vanilla servers.
- Optifine Parity - Replacements for most Optifine features like Shaders, CEM, CIT, Animated & Connected Textures, Capes, Dynamic Lighting and Custom Sky Boxes.
- Regularly Updated - Actively maintained and updated to newer Minecraft versions.
- Optimized - Strives to provide the best possible performance while still having all the bells and whistles.
Other Features
- Replay Mod - The best way to record and capture replays.
- Roughly Enough Items - The go-to mod for browsing receipes.
- Auth Me - Has your client been launched for too long? Use the authenticate button in the server list. No need to restart.
- Improved Third Person - Minecraft's third-person mode is old and clunky, the new one allows you to turn the camera without turning your character.
- 3D-Skin-Layers - Makes skins look fabolous by improving rendering of the 3D layer.
- Wavey Capes - Capes now blow beautifully in the wind.
Stable releases can be downloaded from the platforms linked above.
🤝 Bugs & Feature Requests
If you happen to find any bugs or wish to request a feature, please open an issue on our issue tracker here. We provide bug report and feature request templates, so it is important that you fill out all the necessary information.
Making your issue easy to read and follow will usually result in it being handled faster. Failure to provide the requested information in an issue may result in it being closed.
🔧 Contributing
Contributions are always welcome! Please make sure to read our Contributor's Guide before submitting any pull requests.
We also ask that you adhere to our Contributor Code of Conduct to ensure this community remains a place where all feel welcome to participate.
❤️ Acknowledgments
Optim was created because I grew tired of manually updating my personal selection of mods after every Minecraft update.
The following projects inspired, influenced and or helped me greatly when creating Optim:
- mc-modpack-kit - Used to scaffold this GitHub repository.
- Packwiz - Exceptional software making modpack maintenance and creation easy.
- Kami Chan Optimized - Inspired a few additions like fast-up-ping and Server Pinger Fixer.
📝 License
You can find the license this project is licensed under here. All mods & content are licensed under their respective authors' license.
Project description from Modrinth.
Mods in v1.7.0
Open any mod on Modpacks.ch to check its files and dependencies.
9b0f00bbcfe0bf840fda39bda79e8a12255f083e · Modrinth version VfdkH9Ne · Project link unavailable Client onlyfd805fa03e25013b9fe824bf43f7d8a90f565c84 · Modrinth version LHBm6fEV · Project link unavailable Client only9cf6df32c9f98b8eb3ae6527cd5fef9a46df3175 · Modrinth version fG1xJao0 · Project link unavailable Side not labelled82e37f8e83d8feabf53358ff3f38e74db6b2a630 · Modrinth version afBcyXjI · Project link unavailable Side not labelled300a4c6578a81acf41af29da26aa79b7a717ec14 · Modrinth version WrVFwS4j · Project link unavailable Client only37c1a9c5f83ba6e93f02d4c49306834312853af3 · Modrinth version G5Wd4EHm · Project link unavailable Side not labelled53d915293af5a041f618dd911070830a859efb0b · Modrinth version EJAvGRvS · Project link unavailable Client onlye3161477b47e927fc2678d8ea018c10563fa7f37 · Modrinth version 4iASq6Tm · Project link unavailable Client only4df822bd5bd7d2e125eb9c7fdb38bb4b6ee0476e · Modrinth version yyJushgo · Project link unavailable Client only73cd7515b4f13d251065304f8ff4fb44ef690663 · Modrinth version EIHSHWKH · Project link unavailable Side not labelledfc71ece202c21c482bcad0c8624e0abe18fb37ce · Modrinth version DKZ1ckZS · Project link unavailable Client only11655909a800fd70e2e0ca940cddc2bdbcbe2003 · Modrinth version 6SzVPVR4 · Project link unavailable Client only5d82342a2df53fd6df712bfdd583a811572918a4 · Modrinth version HpMb5wGb · Project link unavailable Side not labelleda0f6b511836cd3a7aee4ea2fb09cea7d883c2f5a · Modrinth version lvqqK55F · Project link unavailable Side not labelled16d31a39e85dc10cdff4e06198a1bb26b4b82427 · Modrinth version NksUpFjf · Project link unavailable Client only9d083b3bbdc91247e312aa7b646b31085a718f74 · Modrinth version upa1ZNLu · Project link unavailable Client onlya66f4beaec86b8e07524175dfd8c82326b1aaeb2 · Modrinth version r5ykLPVP · Project link unavailable Client onlybb6fbf6a7ae382daeea2979d4471c0acdeab1860 · Modrinth version fbzkv9Iu · Project link unavailable Client onlye80558a23a573f820375abffece181febd3e7509 · Modrinth version JnCn3KSm · Project link unavailable Client only6fb7d4ec9c2d2dc5b58577324b47671d3e28d7a4 · Modrinth version dO7QNiof · Project link unavailable Side not labelled8c9a19f47331f29edd9010b8b0d87d8a44e11b01 · Modrinth version rBn3e7NE · Project link unavailable Client only257b3f7de416ca8594bdea42a26c28cbc118b841 · Modrinth version mGzNZtjf · Project link unavailable Client onlyd81359d77fc7c5437f3e83e519dc2f869300f0cd · Modrinth version HBZAPs3u · Project link unavailable Client only7a0d5b5388a4f55bcb4e50502893d2e6d69bae1c · Modrinth version Qql6TI9W · Project link unavailable Client onlya23175e7262ff0a089b13cd2cbad99e315e4cfa6 · Modrinth version qQQ5ffvS · Project link unavailable Client onlyef4acec15876eafba8ce1618d2c2a6b3de27e58f · Modrinth version kPbJu8eF · Project link unavailable Client only09b6399db5f09a79b0ac5b7ecbbba2e3189b190a · Modrinth version WTaAx4ah · Project link unavailable Side not labelled6fa5bbd06ab731cbd522aa2591af69101d921672 · Modrinth version o0V8mlNz · Project link unavailable Side not labelledd7c80f23792afc6018da2477d46804114529afca · Modrinth version yhQrKNAJ · Project link unavailable Client onlyc8afc690bb3508df7db793f37e1fe5407dba2f22 · Modrinth version HfdXLVRy · Project link unavailable Client only7acacdf2450425d19cb3900354ab49b69c754ea8 · Modrinth version ue2maFEp · Project link unavailable Client only44e6178f00703b887d551fbbe27ba8b34699445e · Modrinth version 24ohs0tI · Project link unavailable Client only95b18b0f1673bbbe328812c3052cc1a921591f0f · Modrinth version wmIZ4wP4 · Project link unavailable Side not labelled623f3f03f0111d2e1b77d4a5dd5f8653cae12b70 · Modrinth version gtorYSGm · Project link unavailable Side not labelled2624c852dd6fdf74a98491dbe80eaba168537816 · Project link unavailable Client only48091d7324ef3ce30dc6802299c22a6b3869bff2 · Modrinth version 2VeHCZxH · Project link unavailable Side not labelled46c17639a7c0bfec1f9fb4aae53f9163994a3a4e · Modrinth version ahszC7KU · Project link unavailable Client only1bf4b5db91f4e6d7a4f94fe2e96525d22df1cacb · Modrinth version Z8VpxxGh · Project link unavailable Client only6481f2b12ec0d4040424b5f78d4b56faaf862ad5 · Modrinth version u9KvDA4s · Project link unavailable Client only73e792eb5f120787becda4b87b6ff18b26caea50 · Modrinth version Acz3ttTp · Project link unavailable Side not labelledc7988fea2a258a5afdfa193615d3b5261c1e58bb · Modrinth version fpDBBXvT · Project link unavailable Client only47b9096d7625d69b6b30dbb48b663a4241728696 · Modrinth version fk7e7Iej · Project link unavailable Client only3dde05dcd5afab3ff6ca77c08f4c82d3a064f3c6 · Modrinth version 9x0igjLz · Project link unavailable Side not labelled7fbb0130db0e427ee7180d304dfa65c46f0e3b69 · Modrinth version LGYOH4RN · Project link unavailable Side not labelledb8069f2a672abdea1112daa6d716a0e482cf61ea · Modrinth version FUZo6yCk · Project link unavailable Client onlye2d8ee6f75d2b027ae73eafbf9f38c1eb4a35a93 · Modrinth version T1ftCUJv · Project link unavailable Side not labelled0a7c7ac1dd5360ef735ca1e782540ec45c4fc3c8 · Modrinth version 3ib3Uvvv · Project link unavailable Client onlyb4337ef9dc0a6cdf31d8f3df68a6542f64f3625e · Modrinth version 3siYJiWG · Project link unavailable Client only9b576d53c20f5e3a98e437acf41872facc6d64e8 · Modrinth version 8FMczPpf · Project link unavailable Client only17230802228483e0924974936768a71d7e44f5fe · Modrinth version EXt7Kt2t · Project link unavailable Client only735d9faf5572b48fefd6b82736031af256194c9c · Modrinth version Yt9IWzuL · Project link unavailable Client only05ed637fc4d8a7561887753fac5929a04b8b4f5b · Modrinth version BUvJCGus · Project link unavailable Client onlybc779cab81a74f2b48e371055d0c0e4cea8201f9 · Modrinth version TMFxzCSV · Project link unavailable Client only491c363c8e822a0507505154e76ab57099c551df · Modrinth version 3JKfe0Pj · Project link unavailable Client only89d989887dccffaa3dec17fb042cd0b024849610 · Modrinth version R17xxXYg · Project link unavailable Side not labelledd0d7a4639b289ecc25d04ff91bad4ca9885dc645 · Modrinth version eFFsHtIr · Project link unavailable Client onlyd8a8af1844ae38ac4f39e4bf5756915e08081375 · Modrinth version DHUI24N7 · Project link unavailable Client only279f124857df7b09ea9d9b1616720875a00c8b3c · Modrinth version sxC8II3c · Project link unavailable Client only9ae83d512cc2edeec9cc0ea223a142a93b7fa7bb · Modrinth version x7vxzThG · Project link unavailable Client only718e37bb2360a3f68ea744f7d3fb336428dead30 · Modrinth version XDRdKlvq · Project link unavailable Client only6b5866792943f299fed7ff79688a8c8d42676115 · Modrinth version h12GehRH · Project link unavailable Client onlycb8a0cb76a69ba8d5e5dc97a842a56604de47573 · Modrinth version 4K1wLliR · Project link unavailable Client onlyd5ad3bbc8a75fc2e8f3d957a85aa05f3e8b95fd0 · Modrinth version CEAENzuT · Project link unavailable Client only7a94dda82ffd1fe24cd1cacad70eb89dbe564ea6 · Modrinth version CcIWi5Av · Project link unavailable Client onlye3346400643f2ea17cef2fbb8532dcb8d781a626 · Modrinth version wP25tEBe · Project link unavailable Client onlya653cc8d30a28d600ad6e1b3045564ebf9d67efc · Modrinth version I3a5043B · Project link unavailable Client onlyc624d4990b4a0efa8832f2b28e432d5c402bfa7c · Modrinth version q0tTf22O · Project link unavailable Side not labelleda15c7d106b144f7f70cb3c75ae7a393ff708a5c0 · Modrinth version FnoiNbTk · Project link unavailable Client onlyc58dab87a7b62d0b3812c97fa69381ae041a1439 · Modrinth version Y8Wa10Re · Project link unavailable Side not labelledf0340e9c0bc95d67f3f3e9c1cd79b61054af11f9 · Modrinth version KMOzdYko · Project link unavailable Client only7adcde4ce0861c6b573bc86615a19ccf17bec255 · Modrinth version vg7GaKbh · Project link unavailable Client onlyPick your setup
Optim by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build1.21.11
1 loader build1.21.8
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader build1.21.1
1 loader build1.21
1 loader build1.20.4
1 loader build1.20.2
1 loader buildMade local changes? Try them in a copied instance before touching a world you care about.
Recent files
Optim versions and loaders
Looking for an older file? The official Modrinth project page is in Resources.