HorizonUI

HorizonUI

Bring a modern, clean, and customizable user interface to Minecraft. HorizonUI focuses on visual clarity, animated backgrounds, and layout refinement to deliver a fresh and immersive UI experience.

by
2.7K Downloads
fabricforgeneoforgequiltutility
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Screenshots

Title Screen: Default Background

About this Mod

HorizonUI

Github
Modrinth
CurseForge
Environment
Codacy Badge

License
Issues
Release
Crowdin
Github Star

Bring a modern, clean, and customizable user interface to Minecraft.
HorizonUI focuses on visual clarity, animated backgrounds, and layout refinement
to deliver a fresh and immersive UI experience.


Installation

  1. Download the HorizonUI .jar file from one of the trusted platforms below:

  2. Place the downloaded file into your Minecraft mods folder:

    • Windows: C:\Users<YourName>\AppData\Roaming.minecraft\mods
    • Linux/macOS: ~/.minecraft/mods
  3. Launch Minecraft using a supported mod loader.

HorizonUI will activate automatically when the game starts

Using a custom launcher? MultiMC, Prism Launcher, GDLauncher, and other custom launchers are fully supported. Simply add the mod to the instance’s mods folder or import it via the launcher’s built‑in mod manager.


Usage

Once installed, HorizonUI integrates directly into the game UI.

You can configure HorizonUI through:

  • The in‑game Mod Configuration screen
  • Resource Packs for background customization

Changes are applied in real time or after a screen reload, depending on the setting.


Compatibility

HorizonUI focuses heavily on UI customization, including layout structure and background rendering. As a result, mods that also modify Minecraft’s user interface or background systems may conflict.

Potential sources of incompatibility include:

  • Mods that overhaul or replace the main menu or HUD
  • Shader mods that affect 2D UI layers or post‑processing
  • Mods that alter how background textures are loaded or rendered

If you encounter issues:

  • Temporarily disable other UI‑related mods.
  • Check whether shader packs affect UI rendering.
  • Restart the game after modifying resource packs.
  • Report confirmed conflicts on the GitHub issue tracker.

Recommendations

To achieve the best visual experience with HorizonUI, it is highly recommended to use font customization mods that replace Minecraft’s default font.

Suggested mods:

Using modern fonts such as Poppins, Inter, or Segoe UI significantly improves readability and overall UI consistency.


FAQ

Open Here
  • Why isn't the animated background showing up?

    • Animated backgrounds are distributed separately as resource packs to keep the main mod lightweight and performant. You can download them from Han's Official Discord Server or make it manually.
  • I've downloaded the animated background, but it's still not showing on the title screen. Why?

    • Make sure you've enabled the background resource pack in the Resource Packs menu. Then, go to the mod configuration screen to select your desired background.
  • What's the minimum system requirement to run this mod smoothly?

    • We recommend allocating at least 4–6 GB of RAM, and using a processor equivalent to Intel Core i5 8th Gen or better with an integrated GPU.
  • Where do I report bugs or issues?

  • Is HorizonUI compatible with other UI or shader mods?

    • HorizonUI aims to be compatible with most mods, but UI or shader mods may conflict. If you find issues, try disabling other mods temporarily or report the conflict to us.
  • How do I reset HorizonUI settings to default?

    • You can delete the HorizonUI configuration file found in the config/horizonui folder within your Minecraft directory.
  • Does HorizonUI support older versions of Minecraft?

    • Yes, but updates are released gradually per version. If your version isn't supported yet, please wait for upcoming releases.

Credits

Special thanks to everyone who contributed to HorizonUI:

  • nokarin - Lead Developer, UI Designer, Code QA, Translator, Mod Tester
  • Han's - Founder, UI Designer, Translator
  • AetherLumine - Translator
  • howtoscriptinpython - Russian & Ukrainian Translator
  • ExplerHD - Mod Tester
  • noxzym - Mod Tester
  • alfaruqi - Translator (Arabic, Brazilian Portuguese, Mexican Spanish, Italian, German, Georgian)
  • yunfan_adofai - Chinese Translator

License

HorizonUI: Java Edition is licensed under an All Rights Reserved License.
- © 2026 Han's Projects.
- © 2026 HorizonUI: Java Edition - All Rights Reserved.
- © 2019-2026 Strivo Development - All Rights Reserved.

Available Versions

HorizonUI v1.0.0 (Fabric/Quilt 1.21–1.21.1)beta
MC 1.21, 1.21.1fabric, quilt
June 14, 2026
HorizonUI v1.0.0 (Forge 1.21–1.21.1)beta
MC 1.21, 1.21.1forge
June 14, 2026
HorizonUI v1.0.0 (NeoForge 1.21–1.21.1)beta
MC 1.21, 1.21.1neoforge
June 14, 2026
HorizonUI v1.0.0 (NeoForge 1.21–1.21.1)beta
MC 1.21, 1.21.1neoforge
March 15, 2026
HorizonUI v1.0.0 (Forge 1.21–1.21.1)beta
MC 1.21, 1.21.1forge
March 15, 2026

How to Install HorizonUI on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "HorizonUI". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforgeneoforgequilt

Minecraft Versions

1.21.1, 1.21

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

HorizonUI server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is HorizonUI compatible with fabric and forge and neoforge and quilt?

HorizonUI officially supports fabric, forge, neoforge, quilt for Minecraft 1.21.1, 1.21. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with HorizonUI – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if HorizonUI consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

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Details

License
LicenseRef-nokarin
Server-side
Unsupported

Supported Versions

1.21.11.21