Client masks like WorldEdit but client.
use /cmask to set/clear a mask
the goal for syntax is to be as similiar to WorldEdit/FAWE as possible. WorldEdit mask wiki
Currently supports <, >, and comma separated blocks. (does not YET support &, ~, !, quotes (""), block ID's, or block states.)
examples:
/cmask stone
will only effect stone blocks
/cmask >stone
will only effect blocks above stone
/cmask <stone
will only effect blocks below stone
/cmask grass_block,>stone
will only effect grass blocks above stone
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.8
- 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 clientmasks-0.0.1.jar — drop this file into the mods folder
- Download size: 8 KB
- Download link checked 13 Sept 2026 — working
These come from our own check of the pack file, not from the source page.