I built Prose UI while developing a visual editor for MDX (dhub.dev). The problem: every framework represents the same components differently - Docusaurus uses ::: directives, others use <Callout> JSX, etc. This makes it nearly impossible to build portable editing tools or content that works across frameworks.

Prose UI provides a standardized set of React components (callouts, tabs, cards, code blocks, LaTeX math) that work directly in MDX - with or without a framework. Use them in plain Next.js, Docusaurus, or your own setup. The goal is consistent syntax and behavior for portable MDX.

Built this to solve my own problem. Would love feedback!

Repo: https://github.com/vrepsys/prose-ui