CurseForge · Minecraft mod
oωo (owo-lib)
A general utility, GUI and config library for modding on Fabric and Quilt
Quick answer
Which oωo (owo-lib) release matches 1.21.11 Quilt?
oωo (owo-lib) [1.21.11] oωo - 0.13.0 targets 1.21.11 with Fabric, Quilt. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. 1 required mod needs a matching file.
Where it goes
Is oωo (owo-lib) required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does oωo (owo-lib) [1.21.11] oωo - 0.13.0 need?
[1.21.11] oωo - 0.13.0 on 1.21.11 Quilt. Every mod below is checked against that same setup.
Install Fabric API first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add oωo (owo-lib) without breaking your instance.
Built for oωo (owo-lib) [1.21.11] oωo - 0.13.0 on 1.21.11 Quilt. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use [1.21.11] oωo - 0.13.0. It targets 1.21.11 with Fabric, Quilt; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside [1.21.11] oωo - 0.13.0. It opens that exact file at the source.
About this project
What does oωo (owo-lib) add?

A general utility, GUI and config library for modding on Fabric and Quilt

Features include:
- owo-ui, a fully-featured declarative UI library for building dynamic, beautiful screens with blazingly fast development times
- owo-config, a built-in, customizable configuration system built on top of owo-ui. It provides many of the same features as Cloth Config while many new conveniences, like server-client config synchronization, added on top
- A fully automatic registration system that is designed to be as generic as possible. It is simple and non-verbose to use for basic registries, yet the underlying API tree is flexible and can also be used for many custom registration solutions
- Item Group extensions which allow for sub-tabs inside your mod's group as well as a host of other features like custom buttons, textures and item variant handling
- A fully-featured networking layer with fully automatic serialization, handshaking to ensure client compatibility and a built-in solution for triggering parametrized particle events in a side-agnostic manner
- Client-sided particle helpers that allow for easily composing multi-particle effects
- Rich text translations, allowing you to use Minecraft's text component format in your language files to provide styled text without any code

owo is documented in two main ways:
- There is rich, detailed JavaDoc throughout the entire codebase
- There is a wiki with in-depth explanations and tutorials for most of owo's features over at https://docs.wispforest.io/owo/features/
Should you be a fellow modder wanting to use owo, you can join the Wisp Forest discord to get help and discuss the library
Project description from CurseForge.
Pick your setup
oωo (owo-lib) by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1
2 loader builds1.21.11
2 loader builds1.21.10
3 loader builds1.21.9
3 loader builds1.21.8
3 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
3 loader builds1.21.4
3 loader builds1.21.3
3 loader builds1.21.2
2 loader builds1.21.1
3 loader buildsShowing the newest 12 of 13 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
oωo (owo-lib) versions and loaders
[1.21.11] oωo - 0.13.0
owo-lib-0.13.0+1.21.11.jar
31 Jan 2026
Looking for an older file? The official CurseForge project page is in Resources.