
SkyFilter
Utility mod for Hypixel Skyblock. Loose cannon spam/scam filter.
Screenshots

About this Mod

A Note On Updates
This mods minecraft version should usually be updated in parity with Skyblocker (Modpack), I personally play with that modpack because I have also contributed to its development.
Setup
Once you start your game with the mod for the first time, a new text file will appear in your mods folder. "skyfilter_settings", inside this file, the setting "blockedTermsRegex" is where you may customize the regex with any terms you want.
📖 Short Description
Skyfilter (for Hypixel Skyblock) uses mixins to detect spam/scam messages before they appear in chat, and promptly deletes them.
❓ What does the mod add?
The mod adds a chat filter, and it deletes all messages that hit the trigger before they appear in the chatbox.
❓ Why do I want this?
(Context: This started off as a personal mod, and still is a personal mod.) Hypixels chat filtering system is not sufficent for me, it filters swear words and slurs yeah, but it does not handle spam. This mod adds background code with custom chat filters for Hypixel Skyblock specifically to handle the most common chat spams on that server.
Available Versions
How to Install SkyFilter 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 (1.21.4).
Install Mod
Open the mod browser in the dashboard and search for "SkyFilter". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.4, 1.21.1, 1.21
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
SkyFilter 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 (1.21.4). You can switch loaders with one click in the panel.
Is SkyFilter compatible with fabric?
SkyFilter officially supports fabric for Minecraft 1.21.4, 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with SkyFilter – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if SkyFilter 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.
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Rent Modded Server
Install SkyFilter with just one click on your server.