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CurseForge · Minecraft modpack
OptiFabriс
Best alternative to OptiFine
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which OptiFabriс release matches 1.21.5?
Best match for your filters 6.5.4
Game version 1.21.5
Loader Fabric 0.19.5
6.5.4 is a complete pack release for 1.21.5 with Fabric 0.19.5. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 40 mods in this pack file.
Pack setup
How should I set up OptiFabriс for players and a server?
Use 6.5.4 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 6.5.4
Dedicated server setup Match 6.5.4
Pack loader Fabric 0.19.5
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 40
Client only 18
Server only 0
Not labelled 22
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 OptiFabriс?
6.5.4 on 1.21.5. The pack contents and setup notes below stay tied to that release.
The selected pack release is 6.5.4. That file is for Minecraft 1.21.5 with Fabric 0.19.5. It contains 40 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 OptiFabriс?
✨ OptiFabric
OptiFabric is a modern Fabric replacement for OptiFine, bringing OptiFine-like features, shader support, resource pack compatibility, and better optimization for higher FPS and smoother gameplay.
🚀 Main Benefits
| ⚡ Higher FPS | Improves overall game performance and responsiveness. |
|---|---|
| 💾 Lower RAM Usage | Reduces memory usage and unnecessary system load. |
| 🌅 Shader Support | Allows using shaders on Fabric. |
| 🧱 Rendering Optimization | Optimizes blocks, entities, chunks, and visual effects. |
| 👀 Smart Culling | Stops rendering blocks and entities that are not visible to the player. |
| 🌐 Server Ping Optimization | Improves multiplayer server list pinging and makes refreshing servers faster and smoother. |
| 🛡️ Background Optimization | Lowers resource usage when Minecraft is minimized. |
❓ What Does It Replace From OptiFine?
| 🔍 Zoom | ✅ Included |
|---|---|
| 🌅 Shaders | ✅ Included |
| 💡 Dynamic Lights | ✅ Included |
| 🍃 Smart Leaves | ✅ Included |
| 🦸 Capes | ✅ Included |
| ⚙️ Advanced Video Settings | ✅ Included |
| 📸 HD Screenshots | ✅ Included |
🎨 Resource Pack Features
| 🖼️ Animated Textures | 🔗 Connected Textures |
|---|---|
| 🔳 Custom GUI | 🪙 Custom Items |
| ☁️ Custom Sky | 🅰️ HD Fonts |
| 🎲 Random Entities | 📐 Custom Entity Models |
| 🌈 Custom Colors | 🚀 Splash Screen Support |
| 🔍 Anisotropic Filtering | 📷 HD Screenshots |
💬 Community & Support
Need help, want to report a bug, or follow updates? Join the Discord community.
Project description from CurseForge.
Mods in 6.5.4
Open any mod on Modpacks.ch to check its files and dependencies.
animatica-0.6.1+1.21.5.jar SHA-1
48746e8fbf005ffd4b7018cf37339a312865c57b · CurseForge file 6680910 · Project link unavailable Client onlyBetterGrassify-1.7.0+fabric.1.21.5.jar SHA-1
39811c2242f86da94cd7d78634c18138dfd18e72 · CurseForge file 6664108 · Project link unavailable Side not labelledc2me-fabric-mc1.21.5-0.3.3.0.0.jar SHA-1
e5a0c540721de0c7541b32c66acf7e67c874fd5b · CurseForge file 6564728 · Project link unavailable Side not labelledcapes-1.5.5+1.21.5-fabric.jar SHA-1
d884add3efd389b32e71dba63b1267840c89fcd6 · CurseForge file 6347428 · Project link unavailable Side not labelledCleanF3-0.4.10.jar SHA-1
e4b2e232713bfceacb7c2c6a3745fe42a40be368 · CurseForge file 7382513 · Project link unavailable Client onlycloth-config-18.0.145-fabric.jar SHA-1
db73460f84cede7b5fc67dce7c38bbeb5444c63e · CurseForge file 6351756 · Project link unavailable Side not labelledConfiguredDefaults-v21.5.0-1.21.5-Fabric.jar SHA-1
938253ef8c94de0cde578b4a91d4effffdb55b18 · CurseForge file 6432226 · Project link unavailable Side not labelledcontinuity-3.0.1-test.4+1.21.5.jar SHA-1
9965153e0acabbe3582aabe2ddb6a503508b6787 · CurseForge file 6489459 · Project link unavailable Client onlycwb-fabric-3.0.0+mc1.21.5.jar SHA-1
b663eb9a8238be3cd71173e39b6f9d01d0948c1d · CurseForge file 6381090 · Project link unavailable Side not labelleddynamic-fps-3.11.4+minecraft-1.21.5-fabric.jar SHA-1
56255b3327d319f502f4deed9c6df98e53c211ba · CurseForge file 7546960 · Project link unavailable Client onlyentity_model_features-3.3-1.21.5-fabric.jar SHA-1
e128d4e3a7ac7efb0a502ef6808f4a14faddd2a7 · CurseForge file 8782776 · Project link unavailable Client onlyentity_texture_features-7.2-1.21.5-fabric.jar SHA-1
e80062478d3f75731f9c47668fdc157d76fdb582 · CurseForge file 8782702 · Project link unavailable Client onlyentityculling-fabric-1.10.5-mc1.21.5.jar SHA-1
e6400006c6463855f739fb7780603f08f18be545 · CurseForge file 8287109 · Project link unavailable Client onlyfabric-api-0.128.2+1.21.5.jar SHA-1
920dea0ac4ff08f539099215eace9fda3e3fb2e3 · CurseForge file 6863346 · Project link unavailable Side not labelledfabric-language-kotlin-1.13.13+kotlin.2.4.10.jar SHA-1
620cb137a9dc69ce86f3114f19d9eedab16366f5 · CurseForge file 8439967 · Project link unavailable Side not labelledfabrishot-1.15.1.jar SHA-1
83afbc409cb6a749394f8b437e66db1ca7bc8b52 · CurseForge file 6704001 · Project link unavailable Side not labelledferritecore-8.0.4-fabric.jar SHA-1
974662c047d5eaa34d372be09409b8b754c223f4 · CurseForge file 7524423 · Project link unavailable Side not labelledImmediatelyFast-Fabric-1.9.7+1.21.5.jar SHA-1
7bc7380cbae85467d3f264d6a88dee77473bcdf5 · CurseForge file 7032385 · Project link unavailable Client onlyiris-fabric-1.8.11+mc1.21.5.jar SHA-1
3806a7c76347bcfd9f02b1317a5ddd1541bd24a7 · CurseForge file 6369436 · Project link unavailable Client onlykrypton-0.2.9.jar SHA-1
45a1cba4e4fbd1e4885583699739bd8ad73ba5e6 · CurseForge file 6364768 · Project link unavailable Side not labelledlambdynamiclights-4.8.7+1.21.5.jar SHA-1
d2ee6b34245155f56ab4d48f1346839bbd470bb1 · CurseForge file 7306470 · Project link unavailable Side not labelledlazy-language-loader-0.3.8.jar SHA-1
59b42ca37534b61207f4be8137ed336046a93545 · CurseForge file 5994091 · Project link unavailable Client onlylithium-fabric-0.16.3+mc1.21.5.jar SHA-1
eaa7ef4e1dba9006dd216bb310eb8ec3dccd84bc · CurseForge file 6658792 · Project link unavailable Side not labelledmidnightlib-fabric-1.9.3+1.21.5.jar SHA-1
50828618a0875b252ad2e413cd1a756a30578035 · CurseForge file 8028805 · Project link unavailable Side not labelledmodmenu-14.0.2.jar SHA-1
37de7f1496d379a7df98f4b400a790ecafc005ff · CurseForge file 7808731 · Project link unavailable Side not labelledmoreculling-fabric-1.21.5-1.3.1.jar SHA-1
244855a197a7b27422fc435f5ef8ab6306a24f53 · CurseForge file 6493337 · Project link unavailable Side not labelledno-telemetry-1.10.0.jar SHA-1
3d52342f5825d01dda6661ef7116cdbacbe49746 · CurseForge file 7436494 · Project link unavailable Client onlyoptigui-2.3.0-beta.9+1.21.5.jar SHA-1
dd93e2939593f01ba79027be4d29795cb8119ee0 · CurseForge file 7216054 · Project link unavailable Client onlyplaceholder-api-2.6.4+1.21.5.jar SHA-1
db8f916f040cb21efc395ca9e4d988f8a75f42d4 · CurseForge file 6609126 · Project link unavailable Side not labelledpolytone-1.21.5-3.6.0-fabric.jar SHA-1
4d84f3964d346cf6760f243f278dcf4edecc4986 · CurseForge file 7329501 · Project link unavailable Side not labelledpuzzle-fabric-2.3.0+1.21.5.jar SHA-1
7b47af579a6443282e20c2d26bd4b983b354c633 · CurseForge file 7394095 · Project link unavailable Side not labelledreeses-sodium-options-fabric-1.8.3+mc1.21.4.jar SHA-1
c72f07a8f139f0420cbce29bd9eb29fb24db427f · CurseForge file 6091019 · Project link unavailable Client onlyrenderscale-fabric-1.21.5-1.3.1.jar SHA-1
67431ab02ef186237b066be848fdae9bd077bcc4 · CurseForge file 6659576 · Project link unavailable Client onlyserverpingerfixer-1.0.5.jar SHA-1
9ae83d512cc2edeec9cc0ea223a142a93b7fa7bb · CurseForge file 5340851 · Project link unavailable Client onlyskyboxify-2.8+1.21.5-fabric.jar SHA-1
1f8ca8757a0ad1235d60844907179ce7fb9d83a8 · CurseForge file 8006967 · Project link unavailable Side not labelledsodium-extra-fabric-0.6.3+mc1.21.5.jar SHA-1
f791686c1af393dd8931540f38b5aab8e28f2b5c · CurseForge file 6362088 · Project link unavailable Client onlysodium-fabric-0.6.13+mc1.21.5.jar SHA-1
6a7132ea86653541fa53ef88c764c8ac0cde81cc · CurseForge file 6382664 · Project link unavailable Client onlysodium-shadowy-path-blocks-fabric-5.0.1.jar SHA-1
6fc6b66e4a970089bebed9ae40360d489db0a6d0 · CurseForge file 7051955 · Project link unavailable Client onlyyet_another_config_lib_v3-3.8.2+1.21.5-fabric.jar SHA-1
6a1ef85842064a98eff99f2fd72754be3a469eeb · CurseForge file 7437851 · Project link unavailable Side not labelledzoomify-2.15.2+1.21.5.jar SHA-1
165adbb9c5c26761ace81ccd2cf561d1ca18cd72 · CurseForge file 7591961 · Project link unavailable Side not labelledPick your setup
OptiFabriс by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
26.2
1 loader buildMinecraft version
26.1.2
1 loader buildMinecraft version
26.1.1
1 loader buildMinecraft version
26.1
1 loader buildMinecraft version
1.21.11
1 loader buildMinecraft version
1.21.10
1 loader buildMinecraft version
1.21.9
1 loader buildMinecraft version
1.21.8
1 loader buildMinecraft version
1.21.7
1 loader buildMinecraft version
1.21.6
1 loader buildMinecraft version
1.21.5
1 loader buildShowing the newest 12 of 35 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
OptiFabriс versions and loaders
Fabric 0.19.51.21.58.0.312+7 release
Looking for an older file? The official CurseForge project page is in Resources.
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