You can now create your own custom spells, magic items, races, feats, backgrounds and monsters! Content you create can be used within the character builder and sheet, as well as other tools that will be introduced in the future (such as the encounter builder).
Our purpose with homebrew content is to accommodate the incredible creativity in the D&D community and the flexibility of the D&D game in the toolset. We want players to be able to make custom content that can then be used with their characters - fully integrated and not tacked on or managed separately.
The process and tools provided here are the same ones we have used to generate the "meta data" for the various listings, filters, and other content used throughout the site.
We're excited to see what gets created and shared! Have fun and share your feedback in the [Mega Thread] Focused Feedback - Homebrew Content!