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modpack

OptiFiniumMinecraft modpack for 26.3

The closest to OptiFine as you can get on Fabric, as well as being small as possible, making for a perfect base for any Modpack you desire to make.

client and servernewest supported release 26.3OptimizationLightweightMultiplayer
Latest version
2.0.7-26.3-b5
Minecraft
1.20.1 to 26.3
Java
Java 25+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
18.2k
Updated
21 d ago
Available on
Modrinth
Space NodeOur hosting

Host OptiFinium servers

One click and OptiFinium is installed with the right loader, on hardware built for it.

  • 26.3
  • Fabric
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version OptiFinium declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
26.3Fabric25+declared15 Sept 2026
26.2Fabric25+declared16 Jun 2026
26.1.2Fabric25+declared9 Apr 2026
26.1.1Fabric25+declared1 Apr 2026
26.1Fabric25+declared24 Mar 2026
1.21.11Fabric21+declared9 Dec 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024
1.20.6Fabric21+declared29 Apr 2024
1.20.4Fabric17+declared7 Dec 2023
1.20.1Fabric17+declared12 Jun 2023

Download

From OptiFinium’s own host. Nothing is re-hosted here.

Browse 61 indexed releases

Most recently published release

2.0.7-26.3-b5beta17 Oct 2026

OptiFinium 26.3-2.0.7-b5.mrpack · 16 KB · for 26.3 · Fabric

Download this release
ef7e61f692fc…
Older versions24
  • 2.0.7-26.3-b414 Oct 202626.316 KB7eeabef41851…Get
  • 2.0.7-26.3-b327 Sept 202626.317 KBcb178a826135…Get
  • 2.0.7-26.3-b220 Sept 202626.317 KBd668cb8a7f56…Get
  • 2.0.7-26.3-b120 Sept 202626.317 KB54306c501185…Get
  • 2.0.7-26.2-b176 Sept 202626.217 KB0b4c17be8aae…Get
  • 2.0.7-26.2-b163 Sept 202626.217 KBf2ee1173b38d…Get
  • 2.0.7-26.2-b1529 Aug 202626.217 KBcd6e5e3a9617…Get
  • 2.0.7-26.2-b1425 Aug 202626.217 KBc1c08af92de6…Get
  • 2.0.7-26.2-b1322 Aug 202626.217 KB770f991fee0f…Get
  • 2.0.7-26.2-b1217 Aug 202626.224 KB74ae929b4294…Get
  • 2.0.7-26.2-b1116 Aug 202626.224 KB6b4687f50821…Get
  • 2.0.7-26.2-b1015 Aug 202626.224 KB28c1f805b426…Get
  • 2.0.7-26.2-b97 Aug 202626.224 KB7eda75482b2d…Get
  • 2.0.7-26.2-b827 Jul 202626.224 KB19 downloads760573d520f4…Get
  • 2.0.7-26.2-b712 Jul 202626.224 KB66 downloads49dce772fa28…Get
  • 2.0.7-26.2-b69 Jul 202626.224 KB27 downloads854ada27b8ca…Get
  • 2.0.7-26.2-b55 Jul 202626.224 KB28 downloads3c672cd795ff…Get
  • 2.0.7-26.2-b42 Jul 202626.224 KB25 downloads0fbff8ab0155…Get
  • 2.0.7-26.2-b330 Jun 202626.224 KB23 downloads925f8eb2789e…Get
  • 2.0.7-26.2-b230 Jun 202626.235 KB16 downloads99ff8ae5baa9…Get
  • 2.0.7-26.2-b23 Jun 202626.234 KB50 downloads369ac98ec237…Get
  • 2.0.6-26.1.230 Apr 202626.1.254 KB283 downloads4ac01f038ace…Get
  • 2.0.6-1.21.130 Apr 20261.21.154 KB56 downloads9ed15f2fc997…Get
  • 2.0.6-1.20.130 Apr 20261.20.158 KB46 downloads5a75e47a53aa…Get

Frequently asked

Does OptiFinium work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version OptiFinium declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does OptiFinium support?

Everything the author has declared, from 1.20.1 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install OptiFinium on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does OptiFinium support?

Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for OptiFinium?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is OptiFinium under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install OptiFinium?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download OptiFinium safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔Uton OptimizatorEffective optimization for weak PCs and even for mobile devices.Fastly OptimisedA modpack to enhance the performance of Pojavlauncher, MojoLauncher, Amethyst Launcher, Pojav Zenith Horizon (Zalith Launcher), Zalith Launcher2, Hello Launcher, FoldCraft Launcher, SolCraft Launcher and Low-End-PCs.

Details from Modrinth, where the author last updated it on 17 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .