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Modular BackpacksMinecraft mod for 1.21.1

Adds Backpacks and Modules that can be slotted in them for different functionality.

client and servernewest supported 1.21.1UtilityGame MechanicsStorage
Latest version
0.1.10
Loaders
Forge, NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
13.8k
Updated
25 d ago
Available on
Modrinth
Space NodeOur hosting

Host Modular Backpacks servers

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

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

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

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

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

0.1.10release31 Jul 2026

modular_backpacks-0.1.10.jar · 1.0 MB · for 1.20.1

Download latest
f4f10a12acec…
Older versions10
  • 0.2.216 Jul 20261.21.12.6 MB1.5k downloadsb499c1c3d2c3…Get
  • 0.2.110 Jul 20261.21.12.6 MB574 downloads0882e4202452…Get
  • 0.2.07 Jul 20261.21.12.6 MB309 downloadsc947dd77e5bf…Get
  • 0.1.923 May 20261.20.10.9 MB2.7k downloadse1cb230840c3…Get
  • 0.1.822 May 20261.20.12.6 MB126 downloads9aa5487256b7…Get
  • 0.1.716 May 20261.20.10.9 MB336 downloadsa21d87bb4e94…Get
  • 0.1.612 May 20261.20.10.9 MB362 downloads686638956157…Get
  • 0.1.512 May 20261.20.10.9 MB153 downloadseadc9a2877c5…Get
  • 0.1.411 May 20261.20.10.8 MB99 downloads5af56605162e…Get
  • 0.1.329 Apr 20261.20.10.7 MB300 downloadse38ec03f97de…Get

Frequently asked

Does Modular Backpacks work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Modular Backpacks 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 Modular Backpacks support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Modular Backpacks 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 Modular Backpacks support?

Forge, NeoForge. 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 Modular Backpacks?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Modular Backpacks 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 Modular Backpacks?

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 Modular Backpacks 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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

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

Details from Modrinth, where the author last updated it on 3 Sept 2026. 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? .