
ClientBlock
A Fabric Mod for blocking/filtering Minecraft clients (JUST SERVER SIDE!).
Configuration
The configuration file is created automatically inside your Fabric Mods
configurations folder. The file is named clientblock.json which has
this structure:
{
// Json schema for having types in config
"$schema": "https://raw.githubusercontent.com/arch-fan/ClientBlock/refs/heads/main/config.schema.json",
"action": "block", // "block" or "allow" (block by default)
"clients": [
"fabric"
], // Array of clients to block or allow (based in action mode) (empty by default)
"kickMessage": "Custom kick message", // The client is not allowed! ("The client is not allowed!" by default)
"logger": false, // Where to log every single person client entering at the server (false by default)
"whitelist": [
"PlayerOne"
] // Array of players to bypass the client filter (empty by default)
}
Here you can copy the template without comments :)
{
"$schema": "https://raw.githubusercontent.com/arch-fan/ClientBlock/refs/heads/main/config.schema.json",
"action": "block",
"clients": [
"fabric"
],
"kickMessage": "Custom kick message",
"logger": false,
"whitelist": [
"PlayerOne"
]
}
Commands
/clients for listing all clients.
Publication
Actually, the mod is published in two mod providers
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as ClientBlock-0.1.6.jar — drop this file into the mods folder
- Download size: 22 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.