Menu

mod

StackUpperMinecraft mod for 26.1.2

Increase item stack with custom rule support!

client and servernewest supported 26.1.2UtilityGame MechanicsStorage
Latest version
2.1.0
Minecraft
1.20.5 to 26.1.2
Java
Java 25+
Loader
NeoForge
Licence
GPL-3.0-only
Downloads
4.9k
Updated
4 mo ago
Available on
Modrinth
Space NodePartner

Host StackUpper servers

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

  • 26.1.2
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
26.1.2NeoForge25+declared9 Apr 2026
26.1.1NeoForge25+declared1 Apr 2026
26.1NeoForge25+declared24 Mar 2026
1.21.11NeoForge21+declared9 Dec 2025
1.21.10NeoForge21+declared7 Oct 2025
1.21.9NeoForge21+declared30 Sept 2025
1.21.8NeoForge21+declared17 Jul 2025
1.21.7NeoForge21+declared30 Jun 2025
1.21.6NeoForge21+declared17 Jun 2025
1.21.5NeoForge21+declared25 Mar 2025
1.21.4NeoForge21+declared3 Dec 2024
1.21.3NeoForge21+declared23 Oct 2024
1.21.2NeoForge21+declared22 Oct 2024
1.21.1NeoForge21+declared8 Aug 2024
1.21NeoForge21+declared13 Jun 2024
1.20.6NeoForge21+declared29 Apr 2024
1.20.5NeoForge21+declared23 Apr 2024

Download

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

2.1.0release16 Apr 2026

StackUpper-2.1.0-26.1.jar · 0.4 MB · for 26.1, 26.1.1, 26.1.2

Download latest
f2d8f0026d35…
Older versions16
  • 2.0.1011 Mar 20261.21.6, 1.21.7, 1.21.80.4 MB126 downloads2f295cc82868…Get
  • 2.0.96 Jan 20261.21.9, 1.21.10, 1.21.110.4 MB323 downloads6008e44d6b6a…Get
  • 2.0.81 Nov 20251.21.6, 1.21.7, 1.21.80.4 MB284 downloads7e605d6ba8c7…Get
  • 2.0.722 Oct 20251.21.6, 1.21.7, 1.21.80.4 MB75 downloads34419703135b…Get
  • 2.0.623 Aug 20251.21.6, 1.21.7, 1.21.80.3 MB234 downloads605b7fe7a3e1…Get
  • 2.0.522 May 20251.21.3, 1.21.4, 1.21.50.4 MB423 downloads5b57f14e232e…Get
  • 2.0.423 Feb 20251.21.3, 1.21.40.9 MB444 downloads1ab4651a933f…Get
  • 2.0.310 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.6 MB252 downloads56f64128fbe5…Get
  • 2.0.228 Dec 20241.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.6 MB110 downloads80c28cd34bab…Get
  • 2.0.122 Nov 20241.21, 1.21.1, 1.21.30.6 MB147 downloadsca9a7ffa597d…Get
  • 2.0.021 Nov 20241.21, 1.21.10.6 MB69 downloadsdc354dd593d4…Get
  • 1.0.420 Oct 20241.21, 1.21.10.6 MB132 downloadse874e3a6edbf…Get
  • 1.0.31 Sept 20241.21, 1.21.10.8 MB280 downloads826786db83b9…Get
  • 1.0.210 Aug 20241.21, 1.21.10.8 MB119 downloads27a074a9461a…Get
  • 1.0.125 Jul 20241.20.5, 1.20.6, 1.210.8 MB138 downloads7a5627302633…Get
  • 1.0.021 Jul 20241.20.5, 1.20.6, 1.210.8 MB64 downloads8ffdc00428da…Get

Frequently asked

Does StackUpper work on Minecraft 26.1.2?

Yes. 26.1.2 is the newest Minecraft version StackUpper 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 StackUpper support?

Everything the author has declared, from 1.20.5 up to 26.1.2. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install StackUpper 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 loader does StackUpper need?

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

Which Java version do I need for StackUpper?

Java 25 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is StackUpper under?

GPL-3.0-only, 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 StackUpper?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download StackUpper safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

Entity CullingUsing async path-tracing to hide Block-/Entities that are not visibleFerriteCoreMemory usage optimizationsImmediatelyFastSpeed up immediate mode rendering in MinecraftYetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!Xaero's MinimapDisplays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.[ETF] Entity Texture FeaturesEmissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .