
HexJS
I don't know my version or loader
About
HexJS is a mod integrating Hexcasting and KubeJS for modpack makers and server owners.
Features
Whitelists and Blacklists
The server and each player has their own list of patterns they can cast, this list can either be a whitelist, or a blacklist. (Default is an empty blacklist)
The per-player lists are persistent, while the global list is not. If there is a conflict, the per-player list takes priority.
Tip: Blocking the base number literal (0) for either positive or negative numbers will block all numbers of that type
Redirects
The server and each player has their own list of redirects which redirect a drawn pattern to another pattern, this is handled after the whitelists and blacklists.
Only 1 pass is done so it is easily possible to swap the effects of 2 patterns. If there is a conflict, the per-player redirect takes priority.
Custom Patterns
This is probably what most of you are here for, the ability to make your own patterns and spells, all from inside KubeJS!
This happens in 2 parts, first you register the pattern with a name and such, and then you check if the pattern in question was the one cast in the registeredPatternCastEvent to do your logic. This can be used to override existing patterns.
Pre-Imbued Casting Items
Create cyphers, trinkets, and artifacts with pre-imbued spells and media!
This can be used for loot chests, mob drops, and more!
Force Casting
Cast any list of patterns as any player from KubeJS!
This can be used for proxies as well as making fake players from CarpetMod cast spells!
Misc
Ability to create custom ancient scrolls.
Ability to get the angle signature of Great Spells from KubeJS.
Ability to set a max length for Bookkeeper's Gambit. (Global and/or Per-Player, as per Whitelists and Blacklists)
Disclaimer
Due to most of my testing happening on Fabric, there may be a lot more bugs on the Forge version of this mod.
Please do report any bugs you find on the Github. Thank you in advance!
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.19.2, 1.19.3, 1.19.4
- 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.
- Ships as HexJS 1.1.1 [FORGE].jar — drop this file into the mods folder
- Download size: 52 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.