
Modrinth · Minecraft modpack
OptiEarth
The best optimization modpack for minecraft 1.21.
Quick answer
Which OptiEarth release should I use?
OptiEarth 1.0.3 (1.21.6) is a complete pack release for 1.21.6 with Fabric 0.16.14. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 23 mods in this pack file.
Pack setup
How should I set up OptiEarth for players and a server?
Use OptiEarth 1.0.3 (1.21.6) 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 OptiEarth?
OptiEarth 1.0.3 (1.21.6). Change the pack release and its contents or setup may change too.
The selected pack release is OptiEarth 1.0.3 (1.21.6). That file is for Minecraft 1.21.6 with Fabric 0.16.14. It contains 23 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 OptiEarth?
OptiEarth is the lightest and smoothest Fabric modpack ever.
All the best optimization mods put together and set for maximum performance.
Offers:
- Extreme FPS boost;
- Fast loading for singleplayer worlds;
- More advanced and faster language menu;
- Basilar zoom mod;
- In-game fps counter and much more!
FPS boost:

Tested on my own AMD RX 580 Series, AMD Ryzen 5 2600.
Project description from Modrinth.
Mods in OptiEarth 1.0.3 (1.21.6)
Open any mod on Modpacks.ch to check its files and dependencies.
1b39fdda568bd11ba9e45afc912f005b9381ef03 · Modrinth version VLDb95oX · Project link unavailable Client onlye07d88a3e0b2c2f27c63e6dc5ab6051f0becdb53 · Modrinth version Erjpfj2l · Project link unavailable Side not labelledd3bd78860580da556990726af3bed1169e69933e · Modrinth version cz0b1j8R · Project link unavailable Side not labelled1e55d1327339fce178488a4cd94c6ecc38adcc19 · Modrinth version rHrSuH9N · Project link unavailable Client only1a8b96b764348b5f1f67ab0c3332a34e35b45f4e · Modrinth version wxuS4Die · Project link unavailable Client onlyb273a883a3864108453a5d5f0b9e4f0a870c9579 · Modrinth version F5TVHWcE · Project link unavailable Side not labelled2120226cd81107dd52eaf5a9a4607035ff26100c · Modrinth version mccDBWqV · Project link unavailable Side not labelled53d76354587cd1965b842fdce7cff965b5c52fe5 · Modrinth version CtMpt7Jr · Project link unavailable Side not labelled6616fb48b702df4e6367529afeb0cab2599ec80a · Modrinth version fjgmP9rv · Project link unavailable Client only99263e7d7ae31b4eda6fb66c9790bc2763f9ec3d · Modrinth version l77DAK6U · Project link unavailable Client only45a1cba4e4fbd1e4885583699739bd8ad73ba5e6 · Modrinth version neW85eWt · Project link unavailable Side not labelled2fff901eeb095c0a17ee16590e1be76c968224fc · Modrinth version ueN87SNs · Project link unavailable Server only91eb0a3e6cbdf5bb733890a727d67c8ff2ed8f59 · Modrinth version W8KDnevt · Project link unavailable Client only78f513f63036bc8fa061b5ee1aa88d5779f5a52c · Modrinth version XWGBHYcB · Project link unavailable Side not labelleda2aae509ffef3d04087a988efc43d375b2766bc5 · Modrinth version jproYMx9 · Project link unavailable Client only1e9b9ec184470aa5d52e0d968b5e87cf087efae2 · Modrinth version ESxkwc6w · Project link unavailable Client onlye0a53dd0ccd5d1bc13798214e16f9f8a8521a335 · Modrinth version V9mMIy0f · Project link unavailable Server only5b5ef013898f9d4d3c6bf99597bb07e2f571657a · Modrinth version wg33PHxj · Project link unavailable Side not labelled5d83119a31fd6da0c55682a113788e9b6b848142 · Modrinth version AgGRyydH · Project link unavailable Client only768ca85d3a016adb6a4d302ad341ad8944fd3706 · Modrinth version v7JHUEiF · Project link unavailable Client only2d635c3d938aa3f75b0ec61c7402eeea2f9c30a9 · Modrinth version ND4ROcMQ · Project link unavailable Client only5e74b333b37745ee54cfbfbdbec5ef3d3eb7eb0d · Modrinth version aWatA9pi · Project link unavailable Side not labelled932e1011a9ddef31fb4f4d7934f16a091aa5004b · Modrinth version WxYlHLu6 · Project link unavailable Side not labelledPick your setup
OptiEarth by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.5
1 loader build1.21
1 loader buildMade local changes? Try them in a copied instance before touching a world you care about.
Recent files
OptiEarth versions and loaders
Looking for an older file? The official Modrinth project page is in Resources.