About Karsus Codex
A custom item forge for Baldur's Gate 3.
What this is
Karsus Codex is a web-based forge for Baldur's Gate 3 mods. You design custom items, weapons, armor, and full class mods in your browser, no modding toolkit and no scripting required, and download them as ready-to-install .pak files. Pick the stats, effects, and looks you want; the site turns your recipe into a working mod you can drop straight into your game.
Curious what happens between the form and the .pak? The learn more page walks through how it works.
Who's behind it
Karsus Codex is an independent hobby project, built and run by one developer who wanted making BG3 items to be less painful. It is not affiliated with, endorsed by, or sponsored by Larian Studios or Wizards of the Coast. Baldur's Gate 3 and related names are the property of their respective owners.
Hobby project means hobby pacing: the site is free, features arrive when they arrive, and the occasional rough edge is part of the deal. If something breaks, say so; it genuinely helps.
Get in touch
Feedback, bug reports, and questions are welcome. Email contact@karsuscodex.com or see the contact page.