CustomMc
by Flixis
CustomMc is a Fabric client mod that lets players personalize Minecraft's interface, including the window title, loading text, title screen and in-game watermark.
What it does
Everything in CustomMc is set from an in-game configuration screen, so players do not need to edit resource packs or game files by hand. The mod covers the window title, the loading text, the title screen buttons and background, the in-game watermark and the config screen itself. It is aimed at players who want a single, focused tool for changing how the interface looks, and it is described as safe to use on servers because it does not modify gameplay. The mod runs on Fabric for 1.21 – 1.21.11 and is client-side only, so servers do not need it. It is not open source, and the code is kept under All rights reserved, though the source is publicly available.
Key features
Window title
The title shown in the game window can be changed from the config menu.
Title screen and loading text
Title screen buttons, the background and the text shown while loading can all be customized.
In-game watermark
A watermark can be shown during play, with its text set in the in-game config screen.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Custom Window Brand covers the window title for 1.21.11 only, under All rights reserved. Custom Title is open source under the MIT License and covers 1.21 – 1.21.7, so it reaches older builds than CustomMc does. Custom Watermark is open source under the GNU General Public License v3.0 only and covers 1.21.4 – 1.21.8.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| CustomMc | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-04-09 |
| Custom Window Brand | Fabric | 1.21.11 | Client-side only | 2026-07-21 |
| Custom Title | Fabric | 1.21 – 1.21.7 | Client-side only | 2025-09-20 |
| Custom Watermark | Fabric | 1.21.4 – 1.21.8 | Client-side only | 2025-08-16 |
Questions
Does CustomMc need to be installed on the server?
In the catalog
CustomMc is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from Flixis
Similar mods
What the author says
CustomMc is a client-side customization mod focused on one thing: giving you full control over how Minecraft looks and feels — without touching game files or manually editing resource packs. Everything is configurable directly in-game with a simple and intuitive config menu.
Official listing
- Modrinth page
- modrinth.com/mod/custommc
- Owner
- Flixis
- Published
- 2026-02-28
- Updated on Modrinth
- 2026-04-09
- Facts verified
- 2026-10-15