NickMask Fabric Mod

NickMask is a server-side Fabric mod for Minecraft Java 1.21.11.

It hides player names in public-facing messages by replacing them with a small symbol mask like "<#@!>".

What This Mod Does

• Masks player names in normal public chat
• Masks player names in advancement announcements
• Masks the killer name in death messages
• Keeps the dead player's name visible in death messages
• Keeps whispers and private messages readable

Example Behavior

Public chat:

<#@!> hello

Advancement:

<#@!> has made the advancement [Stone Age]

Death message:

Steve was slain by <#@!>

Whisper:

• Still shows the real sender name

Server Requirements

• Minecraft Java 1.21.11
• Fabric Loader
• Fabric API
• Java 21

Install

1. Open your Fabric server folder
2. Open the mods folder
3. Put this file into it:

nickmask-1.0.0.jar

4. Make sure Fabric API for 1.21.11 is also in the same mods folder
5. Start or restart the server

What It Does Not Hide

• Nametags above players
• Player names in the tab list
• Usernames in server files or logs
• Names added by other mods if they bypass vanilla-style message formatting

Notes

• This mod is server-side
• Players usually do not need to install it on their own client
• If another chat mod rewrites messages after this one, that other mod may override the masking