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modpack

OnlyFastMinecraft modpack for 26.3

Optimize your game without adding extra stuff. 26.3 w/ Vulkan

client onlynewest supported release 26.3OptimizationLightweight
Latest version
v11.5-26.3
Minecraft
1.21.1 to 26.3
Java
Java 25+
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
1.8k
Updated
18 d ago
Available on
Modrinth

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version OnlyFast 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
26.1Fabric25+declared24 Mar 2026
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.3Fabric21+declared23 Oct 2024
1.21.1Fabric21+declared8 Aug 2024

Download

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

Browse 36 indexed releases

Most recently published release

v11.5-26.3release22 Oct 2026

OnlyFast v11.5-26.3.mrpack · 26 KB · for 26.3 · Fabric

Download this release
20603ecc0d6d…
Older versions24
  • v11.4-26.329 Sept 202626.39 KB07fbdac0bd52…Get
  • 11.b1-26.318 Sept 202626.327 KB37f97782d7ec…Get
  • v11.3-26.218 Sept 202626.227 KBe6ce37b44e13…Get
  • v11.2-26.226 Aug 202626.226 KB54eb8545563b…Get
  • v11.1-26.226 Jul 202626.227 KB19 downloads411bca4334b4…Get
  • v11.0-26.226 Jul 202626.227 KB2 downloadsef7d225ec7ac…Get
  • b10.0-26.217 Jun 202626.217 KB54 downloads0b5cd02e0f2b…Get
  • v10.0-26.1.230 May 202626.1.24 KB37 downloads7114753e3b98…Get
  • v9.3-26.1.211 May 202626.1.216 KB23 downloads7b6a1421dbf8…Get
  • v9.2-26.1.21 May 202626.1.216 KB24 downloadsfd6ae2f420ad…Get
  • v9.1-26.1.218 Apr 202626.1.216 KB29 downloads90487711339d…Get
  • v9.0-26.16 Apr 202626.116 KB17 downloads6cfa83c3b9c2…Get
  • beta8.2-26.131 Mar 202626.111 KB22 downloads2cb37f2d5f60…Get
  • v8.1-1.21.1115 Feb 20261.21.110.2 MB84 downloadsf1374794b92b…Get
  • v8.0-1.21.115 Feb 20261.21.10.1 MB28 downloadsed65e517a4cf…Get
  • v8.0-1.21.315 Feb 20261.21.30.1 MB15 downloads74ffe828474c…Get
  • v8.0-1.21.415 Feb 20261.21.40.1 MB13 downloads42d1353ee32f…Get
  • v8.0-1.21.515 Feb 20261.21.50.1 MB12 downloads781ec1d4c287…Get
  • v8.0-1.21.815 Feb 20261.21.80.2 MB13 downloads4359dd510ecd…Get
  • v8.0-1.21.1015 Feb 20261.21.100.2 MB14 downloadsf2168dc533d1…Get
  • v8.0-1.21.1115 Feb 20261.21.110.1 MB12 downloadsfe40e81d425d…Get
  • b7.1-1.21.117 Jan 20261.21.1115 KB19 downloadsa66bfbd19beb…Get
  • b7.0-1.21.84 Jan 20261.21.815 KB12 downloads2b9564eaad51…Get
  • b7.0-1.21.104 Jan 20261.21.1015 KB9 downloadsb1fc1a5e2b89…Get

Frequently asked

Does OnlyFast work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version OnlyFast 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 OnlyFast support?

Everything the author has declared, from 1.21.1 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 OnlyFast on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does OnlyFast 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 OnlyFast?

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 OnlyFast 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 OnlyFast?

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 OnlyFast 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 ✔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.Uton OptimizatorEffective optimization for weak PCs and even for mobile devices.

Details from Modrinth, where the author last updated it on 22 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

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