EclipseUI
by Coredex
With EclipseUI, mod authors get a themeable config screen library that gives their settings menus a consistent look in Minecraft.
What it does
Mod authors use EclipseUI to build a configuration screen with ready-made widgets instead of drawing every control by hand. The library supplies toggles, sliders, dropdowns, color pickers and text fields, and it can be opened from the mod list without extra setup on the author's side. Fabric API is required, and EclipseUI itself is client-side only, so servers do not need it.
The library ships two themes: Faithful, which follows the vanilla style, and Modern, which uses a flat design. Files exist for Fabric and NeoForge across six release versions, 1.21.11 – 26.3, and the latest Fabric and NeoForge builds for 26.3 are in the beta channel. The code is open source under the MIT License, and snapshot builds are published as well. Detail Armor Bar Reconstructed is one of the mods that depend on it.
Key features
Faithful and Modern themes
Screens can use a vanilla-style Faithful theme or a flat Modern theme, selected by the mod that builds the screen.
Common widget set
Toggles, sliders, dropdowns, color pickers and text fields are included, so authors do not write these controls from scratch.
Mod list entry point
Config screens built with the library appear in the mod list out of the box.
Integration guide
A Usage Guide explains how to add the library to a mod and set up configuration screens with examples.
Compatibility
Latest build for each game version and loader.
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Required by 1 mod
Use cases
Config screens for a mod
A mod that exposes settings can build a single screen from the library's widgets and keep its options in one place.
Who it’s for: Mod developers who want configuration screens without writing each control themselves, and who build on Fabric or NeoForge for Minecraft 26.3 and nearby versions.
How it compares
schLib is a client-side only library for Fabric, open source under no license and not open source, with builds for 1.21.10 – 26.1.2. Tenreg is an MIT-licensed open source library for Fabric, built for 1.21.11 and run by both client and server. ExoConfig covers both Fabric and NeoForge across 1.21 – 26.3, is open source under the GNU General Public License v3.0 only, and is optional on either side.
Questions
Does EclipseUI need Fabric API?
Does the server need EclipseUI installed?
Which loaders and versions does EclipseUI cover?
Where can an author find setup instructions?
In the catalog
EclipseUI is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Coredex
Similar mods
What the author says
A lightweight, themeable config screen library for Minecraft mods. Add EclipseUI to your mod by following the Usage Guide.
Official listing
- Modrinth page
- modrinth.com/mod/eclipseui
- Owner
- Coredex
- Published
- 2026-02-04
- Updated on Modrinth
- 2026-10-09
- Facts verified
- 2026-10-15