How do I install Traveler's Backpack: Stack Upgrade?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Traveler's Backpack: Stack Upgrade work with?

The listing gives Minecraft 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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Traveler's Backpack: Stack Upgrade

Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.

by EmBy_ · on Modrinth

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

Traveler's Backpack: Stack Upgrade — screenshot 1

Traveler's Backpack: Stack Upgrade — screenshot 2

This mod adds the Stack Upgrade, which increases stack limits by 400%.

REQUIRE TRAVELER'S BACKPACK MOD

Backpack with Stack Upgrade

Crafting requires Netherite ingots, Netherite blocks, and a blank upgrade. Stack Upgrade Crafting

I may add more upgrades in the future...

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as tb_stack_upgrade-1.1.0.jar — drop this file into the mods folder
Download size: 190 KB
Download link checked 8 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21