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L2 BackpackMinecraft mod for 1.21.1

A simple and easy to use backpack mod, with remote sharing features

client and servernewest supported 1.21.1UtilityStorageTransportation
Latest version
3.1.5
Minecraft
1.19.2 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
LGPL-2.1-only
Downloads
121.7k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host L2 Backpack servers

One click and L2 Backpack 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 L2 Backpack declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.21Forge, NeoForge21+declared13 Jun 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.2Forge, NeoForge17+declared5 Aug 2022

Download

From L2 Backpack’s own host. Nothing is re-hosted here.

All 51 releases
3.1.5release30 Jul 2026

l2backpack-3.1.5.jar · 0.8 MB · for 1.21.1

Download latest
b8a60f760d1a…
Older versions24
  • 3.1.424 May 20261.21.10.8 MB4.2k downloads9782a04ee8ef…Get
  • 2.6.024 May 20261.20.10.9 MB5.5k downloadse0250f24130c…Get
  • 3.1.34 Apr 20261.21.10.7 MB2.0k downloads19f9d7cbed1d…Get
  • 3.1.226 Mar 20261.21.10.7 MB442 downloads08472a816a91…Get
  • 3.1.125 Mar 20261.21.10.7 MB80 downloads574e496a0b25…Get
  • 2.5.825 Mar 20261.20.10.8 MB4.1k downloads3864d8060855…Get
  • 2.5.72 Mar 20261.20.10.8 MB3.2k downloadsa3bd8d0c949e…Get
  • 3.1.02 Mar 20261.21.10.7 MB936 downloads64ef02318f32…Get
  • 3.0.2423 Jan 20261.21.10.7 MB16.9k downloads9d682335ac64…Get
  • 2.5.620 Dec 20251.20.10.8 MB5.4k downloads222bd3f3cf0a…Get
  • 3.0.2320 Dec 20251.21.10.7 MB1.1k downloadsc77016817520…Get
  • 2.5.526 Sept 20251.20.10.8 MB6.4k downloads356c40478759…Get
  • 3.0.2229 Aug 20251.21.10.7 MB2.2k downloadsec6141d3b042…Get
  • 3.0.2119 Aug 20251.21.10.7 MB179 downloadsda29e1941032…Get
  • 2.5.424 Jul 20251.20.10.8 MB5.4k downloadscb211d231513…Get
  • 3.0.2026 Jun 20251.21.10.7 MB672 downloadse464ed383ed8…Get
  • 2.5.324 Jun 20251.20.10.8 MB964 downloadsd361054b8e2e…Get
  • 3.0.197 Jun 20251.21.10.6 MB258 downloads9fc7fadae1b4…Get
  • 3.0.184 Jun 20251.21.10.6 MB129 downloadsc594c3357036…Get
  • 2.5.24 Jun 20251.20.10.8 MB3.8k downloadsed36803efc9f…Get
  • 3.0.1723 May 20251.21.10.6 MB264 downloadsad47f83b05a1…Get
  • 2.5.123 May 20251.20.10.8 MB402 downloads1646d3b24683…Get
  • 3.0.1510 Apr 20251.21.10.6 MB1.2k downloads952e4af69f69…Get
  • 3.0.1426 Mar 20251.21.10.6 MB204 downloads4379c209b03f…Get

Frequently asked

Does L2 Backpack work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version L2 Backpack 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 L2 Backpack support?

Everything the author has declared, from 1.19.2 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 L2 Backpack 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 L2 Backpack 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 L2 Backpack?

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 L2 Backpack under?

LGPL-2.1-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 L2 Backpack?

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 L2 Backpack 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Last checked 24 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? .