
Modrinth · Minecraft mod
Librarian
Improves the saved hotbars system by adding new features, optimizing existing functions, and increasing the overall capacity with a page system
Quick answer
Which Librarian release should I use?
Librarian 3.1.4 targets 1.12.2, 1.13.2, 1.14.4 with Fabric, legacy-fabric, ornithe. It must be installed on the client. Do not install it on the dedicated server. All 3 required mods have matching files.
Where it goes
Is Librarian required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
This file is marked client-only.
What else does Librarian 3.1.4 need?
3.1.4. Change the file and its required mods may change too.
Install Ornithe Standard Libraries, Fabric API, Legacy Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Librarian without breaking your instance.
Built for Librarian 3.1.4. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 3.1.4. It targets 1.12.2, 1.13.2, 1.14.4 with Fabric, legacy-fabric, ornithe; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Ornithe Standard Libraries, Fabric API, Legacy Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 3.1.4. It opens that exact file at the source.
About this project
What does Librarian add?
Librarian
Librarian is a mod for Fabric that improves the saved hotbar system by adding new features and increasing the overall
capacity with a page system. It is the successor to Hotbars+, a mod by the same author.
Features
Infinite saved hotbar capacity
Never run out of space in your hotbars again. Librarian introduces a page system which allows you to store as many items
as you could possibly ever want or need.
Since this system is vanilla-compatible, you won't need to worry about having to convert or do any transfers should you
decide to not use the mod anymore.
Better saved hotbar performance
Got a lot of data in your saved hotbars? Not a problem. Librarian optimizes the way the game loads and saved hotbars to
run entirely in the background, completely eliminating some notorious lagspikes many have experienced while working with
saved hotbars in the process.
Accidental overwrite protection
A common problem people experience with the saved hotbar system is the potential to unintentionally overwrite existing
hotbars by pressing the wrong key, losing many items by complete accident in the process. Librarian tries to help
prevent this from happening by comparing the data of the items being saved to that of the items already saved. If it
doesn't exactly match, a prompt will come up asking for confirmation before continuing, potentially saving you and your
items.
Renamable saved hotbars
To help facilitate distribution and organization, Librarian introduces a new vanilla-compatible hotbar metadata system
which allows you to rename your saved hotbars to literally anything you want along with other bits of metadata like a
description and even a list of authors. Names and descriptions support both chat color codes and also
MiniMessage.
All metadata can be customized in-game with the client-side command /librarian meta*, but users can also rename their
hotbar page by simply clicking the text in the creative inventory menu.
* - Some versions (such as pre-1.14.4) do not currently have client-side command libraries available, so with these
versions you will have to apply the changes manually with an NBT editor. I personally recommend using NBTExplorer for
this purpose.
Multi-version support
To account for those holding out on specifics game versions, Librarian supports a wide range of Minecraft versions as
recent as 26.1.1 and as old as 1.12.2 (with the help of Legacy Fabric and
Ornithe). I am committed to supporting as many versions as reasonably possible. The foundation
of Librarian, while similar to its predecessor, is written with the goal of not relying on any particular
version-specific code. This helps make it more future-proof in the long run.
Currently supported versions:
- 1.12.2 (Legacy Fabric or Ornithe)
- 1.13.2 (Legacy Fabric or Ornithe)
- 1.14.4 (Regular Fabric or Ornithe)
- 1.15.2
- 1.16.5
- 1.17.1
- 1.18.2
- 1.19
- 1.19.2
- 1.19.4
- 1.20.1
- 1.20.2
- 1.20.4
- 1.20.6
- 1.21.1
- 1.21.3
- 1.21.4
- 1.21.5
- 1.21.8
- 1.21.10
- 1.21.11
- 26.1.x
Installing
Download the mod JAR and copy it to your 'mods' folder. Depending on the version of Minecraft you are running, you may
need to install some extra mods as well. Here is a table explaining exactly that for each case:
| Version | Loader | Required Mod(s) | Optional Mod(s) |
|---|---|---|---|
| 1.12.2 | Legacy Fabric | Legacy Fabric API | |
| 1.12.2 | Ornithe | Ornithe Standard Libraries | |
| 1.13.2 | Legacy Fabric | None | |
| 1.13.2 | Ornithe | Ornithe Standard Libraries | |
| 1.14.4 | Fabric | Fabric API | Cotton Client Commands (for client-side commands) |
| 1.14.4 | Ornithe | Ornithe Standard Libraries | |
| 1.15.2 | Fabric | Fabric API | Cotton Client Commands (for client-side commands) |
| 1.16.5 | Fabric | Fabric API | |
| 1.17.1 | Fabric | Fabric API | |
| 1.18.2 | Fabric | Fabric API | |
| 1.19 | Fabric | Fabric API | |
| 1.19.2 | Fabric | Fabric API | |
| 1.19.4 | Fabric | Fabric API | |
| 1.20.1 | Fabric | Fabric API | |
| 1.20.2 | Fabric | Fabric API | |
| 1.20.4 | Fabric | Fabric API | |
| 1.20.6 | Fabric | Fabric API | |
| 1.21.1 | Fabric | Fabric API | |
| 1.21.3 | Fabric | Fabric API | |
| 1.21.4 | Fabric | Fabric API | |
| 1.21.5 | Fabric | Fabric API | |
| 1.21.8 | Fabric | Fabric API | |
| 1.21.10 | Fabric | Fabric API | |
| 1.21.11 | Fabric | Fabric API | |
| 26.1.x | Fabric | Fabric API |
Project description from Modrinth.
Pick your setup
Librarian by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
2 loader builds26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader builds1.21.4
2 loader buildsShowing the newest 12 of 28 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Librarian versions and loaders
3.1.4
librarian-3.1.4.jar
20 Aug 2026
3.1.3
librarian-3.1.3.jar
17 Aug 2026
3.1.2
librarian-3.1.2.jar
29 Apr 2026
3.1.1
librarian-3.1.1.jar
10 Apr 2026
3.1
librarian-3.1.jar
7 Apr 2026
3.1-rc1
librarian-3.1-rc1.jar
5 Apr 2026
3.0.7
librarian-3.0.7.jar
2 Apr 2026
3.0.6
librarian-3.0.6.jar
25 Mar 2026
3.0.5
librarian-3.0.5.jar
28 Feb 2026
3.0.4
librarian-3.0.4.jar
8 Oct 2025
3.0.3
librarian-3.0.3.jar
2 Oct 2025
3.0.2
librarian-3.0.2.jar
19 Jul 2025
Looking for an older file? The official Modrinth project page is in Resources.