LDLib-Fabric
by ELBGG
LDLib-Fabric is a Fabric library for custom rendering, a modular GUI framework and data handling that other mods build on.
What it does
The library provides custom rendering, a modular GUI system, data synchronization and persistence, model rendering and an in-game editor for building interface layouts. Developers use these systems to assemble larger features without writing each piece from scratch. Its codebase is organized into separate parts for UI, shaders and models.
Version 2.5 for 1.21.1 comes from a rewrite of the core architecture, brought in line with how recent Minecraft releases are structured. Many older systems and frameworks were removed, which makes the library lighter to run and easier to maintain. Architectury API and Fabric Language Kotlin are required alongside it.
Client and server both need the library, so every player on a server running it needs it too. It is released under the GNU Lesser General Public License v3.0 only, and the source code, issue tracker and wiki are public. Photon Editor Fabric requires it, and the files cover 1.21.1 only.
Key features
Custom rendering
Draws custom visuals and models for interfaces and game objects using the library's own rendering layer.
Modular GUI system
Lets developers assemble interface screens from reusable components rather than hand-coded layouts.
Data synchronization
Keeps values shared between server and client, and stores them so they survive restarts.
In-game editor
Provides visual tools inside the game for arranging interface elements without editing code.
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 2
Required by 1 mod
Use cases
Building complex mod systems
Developers can use the UI, shader, model and data systems together when a mod needs more than a single screen.
Interface prototyping
The in-game editor lets a developer lay out and adjust screens while the game is running.
Who it’s for: Mod developers who want a shared base for interfaces, rendering and synchronized data. Players rarely interact with it directly, since it works behind the mods that require it.
Questions
Does LDLib-Fabric need other mods installed?
Does the server need LDLib-Fabric?
Which game versions does LDLib-Fabric support?
In the catalog
LDLib-Fabric is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from ELBGG
Similar mods
What the author says
LDLib2 features a large, well-structured codebase that offers robust infrastructure for UI systems， shader, model rendering, data synchronization and persistence, and in-game visual editors, enabling developers to build complex systems more efficiently.
Official listing
- Modrinth page
- modrinth.com/mod/ldlib-fabric
- Owner
- ELBGG
- Published
- 2026-04-26
- Updated on Modrinth
- 2026-04-26
- Facts verified
- 2026-10-15