Minecraft version
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CurseForge · Minecraft mod
UglyGlass
Add glass in Minecraft.
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which UglyGlass release should I use?
Latest stable file ugly_glass-1.0.0+a7c3e06575.jar
Game version 1.20.1
Loader Forge, NeoForge
UglyGlass ugly_glass-1.0.0+a7c3e06575.jar targets 1.20.1 with Forge, NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is UglyGlass required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge, NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does UglyGlass ugly_glass-1.0.0+a7c3e06575.jar need?
ugly_glass-1.0.0+a7c3e06575.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add UglyGlass without breaking your instance.
Built for UglyGlass ugly_glass-1.0.0+a7c3e06575.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ugly_glass-1.0.0+a7c3e06575.jar. It targets 1.20.1 with Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside ugly_glass-1.0.0+a7c3e06575.jar. It opens that exact file at the source.
About this project
What does UglyGlass add?
Ugly Glass Mod
Wait… all glass has turned back into the old texture? That looks awful!! Let’s explore the reason behind it. 
“Ugly Glass” Saves Lives
Adding visible patterns to glass can help birds avoid collisions.
- That’s right—Minecraft’s classic glass texture is actually a bird-friendly design.
- Those little pixel patterns are a hidden lifesaver!
- This mod not only restores the old glass texture, but also introduces several alternative bird-safe glass designs.
- These are inspired by real-world solutions, and are accompanied by in-game text that provides additional educational information.
Project description from CurseForge.
Pick your setup
UglyGlass by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
UglyGlass versions and loaders
ugly_glass-1.0.0+a7c3e06575.jar
15 Apr 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1ForgeNeoForge release
Looking for an older file? The official CurseForge project page is in Resources.
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