Nickmask

This is a Fabric mod for Minecraft Java 1.21.11 and what it does is replaces the visible sender name in normal public chat with random symbols

25 Downloads

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Rent Server with this Mod

About this Mod

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

Open your Fabric server folder
Open the mods folder
Put this file into it:

nickmask-1.0.0.jar

Make sure Fabric API for 1.21.11 is also in the same mods folder
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

Available Versions

Nickmask 1.0.1beta

MC 1.21.11fabric

June 2, 2026

Nickmask 1.0.0beta

MC 1.21.11fabric

May 26, 2026

How to Install Nickmask on Your Server

Order Server

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

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Nickmask 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 (1.21.11). You can switch loaders with one click in the panel.

Is Nickmask compatible with fabric?

Nickmask officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Nickmask – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Nickmask 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.