Blacklister

Blacklist mods to prevent players from joining with those mods installed.

343 Downloads

neoforgeutility

Rent Server with this Mod

About this Mod

Blacklister

Features

Blacklister allows server owners to blacklist certain mods in the configuration file, preventing any player except operators to join if they have one of those mods installed.

Configuration

The configuration file is located at config/Blacklister/config/configuration.toml

Need more?

Feel free to request features on the Discord server.

Available Versions

Blacklister 1.1.1release

MC 1.21.1, 1.21.2, 1.21.3, 1.21.4neoforge

July 23, 2025

Blacklister 1.1release

MC 1.21.1, 1.21.2, 1.21.3, 1.21.4neoforge

July 21, 2025

Blacklister 1.0release

MC 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7neoforge

July 4, 2025

How to Install Blacklister on Your Server

Order Server

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

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.7).

Install Mod

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

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.7, 1.21.6, 1.21.5 (+4 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Blacklister server crashes on startup – what to do?

Most common cause: wrong neoforge 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 (1.21.7). You can switch loaders with one click in the panel.

Is Blacklister compatible with neoforge?

Blacklister officially supports neoforge for Minecraft 1.21.7, 1.21.6, 1.21.5. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Blacklister – how to optimize performance?

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