Traveler’s Backpack Stack Extension

Travelers Backpack Stack Extension

Adds a customisable stack limit to the backpack slots in Traveler’s Backpack.

By default, items in the backpack can be stacked in quantities of up to 256 per slot.
This value was chosen to provide a moderate increase and can be adjusted via the configuration file.
A more convenient in-game configuration using Modmenu is planned for future versions.

Why choose this mod?

• More space: Larger stack sizes = more room in your backpack
• Targeted: No effect on normal Minecraft stack limits outside the backpack
• Lightweight: Simple and designed for a single, clear purpose
• Efficient: Perfect for players who want to use their backpack more efficiently

Features

• Increases the stack limit in backpack slots. Default: 256
• Currently adjustable via the configuration file
• No known incompatibilities
• Only the backpack stack limit is changed

Technical Details

| | |
| — | — |
| Minecraft | 1.21.1 |
| Modloader | Fabric |
| Traveler’s Backpack | Required (1.21.1 version) |
| Stack limit range | 1 to 2,147,483,647 (Max Java Integer) |
| Recommended upper limit | 9,999 (Higher values might clip outside the item slot UI) |
| Platform/API | Client & Server (Required on both) |

Configuration

The setting is located in a simple configuration file.

Path: config/travelers_backpack_stack_extender.json

How to change the stack limit:

1. Run the game once with the mod installed. This automatically generates the configuration file.
2. Close the game.
3. Navigate to your Minecraft installation folder (e.g., %appdata%\.minecraft on Windows).
4. Open the config folder and find the file named travelers_backpack_stack_extender.json.
5. Open this file with any standard text editor (like Notepad).
6. Change the number to your desired maximum stack size.

Example:

{
  "stackLimit": 256
}