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OptiPrime project artwork

Modrinth · Minecraft modpack

OptiPrime

A pre-configured, open-source client modpack that replaces OptiFine. It increases framerates (FPS) and lowers RAM allocation through a tested combination of performance mods.

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

Quick answer

Which OptiPrime release should I use?

Updated 4 days ago
Latest stable file OptiPrime FB01-26.2 [Fabric] [26.2]
Game version 26.2
Loader Fabric 0.19.3

OptiPrime FB01-26.2 [Fabric] [26.2] is a complete pack release for 26.2 with Fabric 0.19.3. 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 OptiPrime for players and a server?

Use OptiPrime FB01-26.2 [Fabric] [26.2] 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 OptiPrime FB01-26.2 [Fabric] [26.2]
Dedicated server setup Match OptiPrime FB01-26.2 [Fabric] [26.2]
Pack loader Fabric 0.19.3

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 43
Client only 25
Server only 2
Not labelled 16

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 OptiPrime?

OptiPrime FB01-26.2 [Fabric] [26.2]. Change the pack release and its contents or setup may change too.

43 mods in this pack file

The selected pack release is OptiPrime FB01-26.2 [Fabric] [26.2]. That file is for Minecraft 26.2 with Fabric 0.19.3. 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 OptiPrime?

OptiPrime is a pre-configured client modpack built to reduce RAM consumption and increase framerates (FPS). It functions as an open-source alternative to OptiFine.

Functional Features

  • Pre-assembled: A ready-to-use mod list. Requires no manual searching or testing of individual mods.
  • Resource Management: Lowers memory allocation and stabilizes frametimes across different hardware setups.
  • Open-Source Base: Compiled entirely from open-source projects, ensuring technical transparency and rapid updates.
  • Multi-Loader Support: Actively maintained for NeoForge, Fabric, Forge, and Quilt.

Technical Foundation

Performance is achieved through a specific set of mods (exact list varies by loader and game version):

  • Rendering: Sodium / Embeddium alters chunk rendering logic to increase FPS.
  • Memory: FerriteCore and ModernFix reduce RAM usage and patch vanilla memory leaks.
  • Culling: EntityCulling and MoreCulling skip the rendering of unseen entities and blocks to save CPU cycles.
  • Shaders: Iris / Oculus provide native compatibility for shader packs.

Version Support

We maintain the modpack across the following game versions:

Minecraft Version Supported Loaders Status
26.2 NeoForge, Fabric 🟢 Active (Frequent updates)
26.1.2 NeoForge, Fabric 🟢 Active
1.21.4 NeoForge, Fabric 🟡 Stable / LTS
1.21.1 NeoForge, Fabric 🟡 Stable / LTS
1.20.1 NeoForge, Fabric, Forge, Quilt 🟡 Stable / LTS
1.19.4 Fabric 🟡 Stable / LTS
1.16.5 & 1.12.2 Forge, Fabric 🟡 Stable / LTS
1.19.2 & Below Fabric, Quilt 🔴 Not supported

Feedback & Bug Reports

Bug reports, technical suggestions, and direct communication with the developer are handled via our Discord server.

Project description from Modrinth.

Mods in OptiPrime FB01-26.2 [Fabric] [26.2]

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

asynclogger-2.2.1+26.1.2-fabric.jar SHA-1 e5efc67b67907cbd157e6895a81bc7555c24f5cf · Modrinth version MiNRI6LE · Project link unavailable Client only
AsyncParticles-26.2.2.0-beta.5+26.2.jar SHA-1 8b12bfad5e40a7429cfdde5b880a6a0963e41cad · Modrinth version jN4f0mPv · Project link unavailable Client only
audio_engine_tweaks-1.2.16+MC26.2 build 2.jar SHA-1 4facc00b0c4a3f5b7ed2855303420d45697cc17c · Modrinth version paeoSid4 · Project link unavailable Client only
BadOptimizations-2.4.1-26.2-fabric.jar SHA-1 b36b001f869d04245523807d9ccb26a085f243b4 · Modrinth version JmPs4Wie · Project link unavailable Client only
bbe-fabric-1.3.8-beta.1+mc26.2.jar SHA-1 ec08648cdda68dc05bf8866289c046ddfefb09a2 · Modrinth version Sr2VjbpG · Project link unavailable Client only
BetterGrassify-1.8.7+fabric.26.2.jar SHA-1 0f4a890d07402280686a518579fa9fa02309e315 · Modrinth version r4yqxYQl · Project link unavailable Client only
BetterRenderDistance-1.2.1-beta.2+mc26.2.jar SHA-1 4d22bddffb96afebb242906e1ffb0d4194dc1183 · Modrinth version thmz5tTn · Project link unavailable Client only
chloride-FABRIC-mc26.2-v1.8.1.jar SHA-1 0be6c29f7b55e394e577c2c998ddc0ece7c7ef83 · Modrinth version EaROWwX9 · Project link unavailable Client only
cloth-config-26.2.155.jar SHA-1 babcf16dbd15e09d326e21ffe85ab3f7d843ef9e · Modrinth version Nv3xnWXd · Project link unavailable Side not labelled
entityculling-fabric-1.10.5-mc26.2.jar SHA-1 f66f9d8cbb1f76466aaf45e46fb11b18207e3aef · Modrinth version iiF6U3Ne · Project link unavailable Client only
fabric-api-0.156.0+26.2.jar SHA-1 d96e0d9ef8ea3604fac4ca7495d7c6148f3ac816 · Modrinth version 3gT0I5vt · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.13+kotlin.2.4.10.jar SHA-1 620cb137a9dc69ce86f3114f19d9eedab16366f5 · Modrinth version bdhiINYC · Project link unavailable Side not labelled
fast-ip-ping-v1.0.11-mc26.1.2.jar SHA-1 6b69eaa6323da9f7933206d55cdb09ea3299cde3 · Modrinth version H7KycYXE · Project link unavailable Client only
fastquit-3.1.5+mc26.2.jar SHA-1 0977eb0a35e1a1602bc9306ddbbb9177734131f0 · Modrinth version ZZ5dfboC · Project link unavailable Client only
ferritecore-9.0.0-fabric.jar SHA-1 eac76ff0f3753422c61b2c44487d0d195d88d4bc · Modrinth version d5ddUdiB · Project link unavailable Side not labelled
fix-mc-stats-fabric-26.2-2.4.0.jar SHA-1 2fbc27edc125037079399aaf520bf0da0403370e · Modrinth version OcwWSRG1 · Project link unavailable Side not labelled
forcecloseloadingscreen-2.3.6.jar SHA-1 19629eb45c00005a8f71c831df4e5d59b4dda54d · Modrinth version KpFKKs8P · Project link unavailable Client only
fzzy_config-0.7.6+26.2.jar SHA-1 7ac79a06b302ea72ac029b2f2df1e3930714b256 · Modrinth version EQSFgLYw · Project link unavailable Side not labelled
Gnetum-4.5.1+26.2-fabric.jar SHA-1 42365930296792549c23b1ecdb49ee65856576da · Modrinth version FYk1Bn5B · Project link unavailable Client only
ImmediatelyFast-Fabric-1.16.2+26.2.jar SHA-1 2d1cd27b0b570f908b665c02a35b49381b4c5ec1 · Modrinth version uJHxuQxy · Project link unavailable Client only
iris-fabric-1.11.2+mc26.2.jar SHA-1 f7d526b1062c4bfe2567113cf933d1de26eddd3f · Modrinth version oaD6KQls · Project link unavailable Client only
Ixeris-4.6.2+26.2-fabric.jar SHA-1 59bbe18b92f0f2e2aed69ca8ac6ba33cf2901b8d · Modrinth version B6Z4jE2K · Project link unavailable Client only
Ksyxis-1.4.3.jar SHA-1 6f4b2ea7827da8136bdf436457a2ba3fcdb2120e · Modrinth version kL32PN9Q · Project link unavailable Server only
language-reload-1.7.7+26.2.jar SHA-1 261027cef3c476d4fafdf59362179eb8da9019d2 · Modrinth version L79IylWm · Project link unavailable Client only
lithium-fabric-0.25.3+mc26.2.jar SHA-1 435ad0289209bb72195e7a423756a03f5dfa5a9a · Modrinth version f7vZ0VWU · Project link unavailable Side not labelled
ly-clumps-v1.1.0.jar SHA-1 5e385b356af7a07d565655fa0dfafe6b8d1d6816 · Modrinth version 5o9ZRch5 · Project link unavailable Side not labelled
mercurizer-fabric-0.9.1+mc26.2-1.1.jar SHA-1 0c097bae58f6d261a0546b96254565ebb86cbd52 · Modrinth version kKupDlJ5 · Project link unavailable Client only
modernica-mc26.2-26.07.1.jar SHA-1 6275406b3978d895c4a838d6ac64dad99c4cacbe · Modrinth version MYWySpSm · Project link unavailable Side not labelled
Moonrise-Fabric-1.1.0+87549dd.jar SHA-1 6fd47c69d865f2d67812016ef8b505281b470fe4 · Modrinth version W0HImEBl · Project link unavailable Side not labelled
moreculling-fabric-26.2-1.8.1.jar SHA-1 189d90ef598883df8197ea18b510dba21e69bac4 · Modrinth version D5oVCouK · Project link unavailable Client only
opsec-26.2+v1.1.7.1.jar SHA-1 622980b4700d8fe8dfafd74ac5c5da3901807882 · Modrinth version RIXUWSjP · Project link unavailable Client only
oxidizium-panama-1.3.1.jar SHA-1 085f9d68612bf0bb221ed1b5fe8b6e23f8008b9b · Modrinth version CkO8Xjj9 · Project link unavailable Side not labelled
particle_core-0.3.3+26.2.jar SHA-1 47c472f02c4f9eebc22e1590c02549b6be921292 · Modrinth version VFv6uQKM · Project link unavailable Client only
renderscale-1.4.0-alpha.4-fabric+26.2.jar SHA-1 8533c4cbc0129d5aa7871cfb6a0e49b04148ea7d · Modrinth version EJ7KZw6k · Project link unavailable Client only
ResourcefulConfig-5.0.0.jar SHA-1 e605b530843171786da8f837b4fae728b4d8fb07 · Modrinth version RqoPv70U · Project link unavailable Side not labelled
smoothmaps-fabric-1.6.2.jar SHA-1 de5e87645d4501ee682a7fbb1aa58ed2d8560b35 · Modrinth version pYL2FDoF · Project link unavailable Side not labelled
sodium-extra-fabric-0.9.3+mc26.2.jar SHA-1 e939d4e9760169d83763e373de6d668b1b303321 · Modrinth version Fu02wj4x · Project link unavailable Client only
sodium-fabric-0.9.1+mc26.2.jar SHA-1 14f3388694fa77f870d28262f74562de67eabcbe · Modrinth version 2Yom1N68 · Project link unavailable Client only
springlotus-fabric-1.1.1+26.2.jar SHA-1 bdc84a3ff8f21f1d70302fd47a0c9d5559e4f301 · Modrinth version aw9amg5R · Project link unavailable Side not labelled
Stfu-2.9.1-26.2.jar SHA-1 a22c6c7bf75e2f6a0dc7663c5d91e4ed7d03d5bb · Modrinth version dvsmI3QK · Project link unavailable Client only
structure_layout_optimizer-1.1.4+26.1-fabric.jar SHA-1 4a0fc84879fe358bdfd395af9238e14950dca748 · Modrinth version JwbecFqq · Project link unavailable Server only
xlpackets-1.0.6.jar SHA-1 34e7ee1a82c575ed676a24993dd7dfa2628c03b5 · Modrinth version DCI8egH7 · Project link unavailable Side not labelled
yet_another_config_lib_v3-3.9.6+26.2-fabric.jar SHA-1 40887775504751acd752545e6370a76ca3b5bda9 · Modrinth version cnfPzuFU · Project link unavailable Side not labelled

Pick your setup

OptiPrime by Minecraft version and loader

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

19 available setups

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

Recent files

OptiPrime versions and loaders

208 of 208 releases match

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

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