Pebble's Backpack
by lilpebs
Pebble's Backpack gives a server portable storage in the form of backpacks that players can carry, and server admins can create them for specific players.
What it does
The six backpack tiers, running from leather to netherite, offer slot layouts of 3x3, 9x2, 9x3, 9x4, 9x5 and 9x6, in that order. Each backpack has a unique ID, and its contents are stored in a file in the world folder, pebbles_backpacks.json. Owner names are not stored properly yet, but a backpack stays accessible through its ID.
The mod is server-side only, so players join a server running it without installing anything. Admins use the permission node pebbles.admin and the command set under /padmin, for example /padmin bp create with a tier and a player name, to hand out backpacks as physical items. Several players can open the same backpack ID at the same time, which allows shared storage.
Fabric Language Kotlin is required and must be installed on the server next to the mod. Files are published for Fabric only, across three game versions: 1.19.2, 1.20.1 and 1.21.1. The latest file, 1.0.4 for 1.21.1, was released on 2025-12-10. The code is released under CC0 1.0 Universal, and the source code and issue tracker are public.
Key features
Six backpack tiers
Leather, copper, iron, gold, diamond and netherite backpacks offer increasing slot counts.
Admin backpack commands
Commands under /padmin create backpacks of a chosen tier for a named player, guarded by the pebbles.admin permission node.
Shared backpack IDs
Players can use the same backpack ID at the same time, so storage can be shared between people on the server.
Restricted item moves
Items cannot be right-click dragged around the backpack, which limits how stacks are rearranged inside it.
Server-side install
Only the server runs the mod, so players connect without any client-side installation.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Server Backpacks is server-side only and open source under CC0 1.0 Universal, but its files cover only 1.17.1 – 1.18.1, so it does not reach the 1.21.1 range that Pebble's Backpack targets. Basic Backpack is open source under the MIT License, built for client and server with a 1.21.1 file, so players install it on their side too. Vanilla Backpack is client and server under the MIT License, but it is not open source and targets 1.21.8 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Pebble's Backpack | Fabric | 1.19.2 – 1.21.1 | Server-side only | 2025-12-10 |
| Server Backpacks | Fabric | 1.17.1 – 1.18.1 | Server-side only | 2022-01-23 |
| Basic Backpack | Fabric | 1.21.1 | Client and server | 2025-12-25 |
| Vanilla Backpack | Fabric | 1.21.8 | Client and server | 2026-06-26 |
Questions
Does Pebble's Backpack need Fabric Language Kotlin?
Do players need to install Pebble's Backpack?
How are backpacks given to players?
In the catalog
Pebble's Backpack is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from lilpebs
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What the author says
I created this fairly simple server-sided backpack mod and thought maybe other servers might want to check it out! The mod is still in its early stages so if you run into any issue please let me know! The backpack mod allows for users to store data on the go and use it at the same time as other people that has the…
Official listing
- Modrinth page
- modrinth.com/mod/pebbles-backpack
- Owner
- lilpebs
- Published
- 2023-05-11
- Updated on Modrinth
- 2025-12-10
- Facts verified
- 2026-10-15