Streamdown is a new open source, drop-in Markdown renderer built for AI streaming. It powers the AI Elements Response component, but can also be used standalone to give developers a fully composable, independently managed option with npm i streamdown.
Streamdown is designed to handle unterminated chunks, interactive code blocks, math, and other cases that are unreliable with existing Markdown packages.
It's available now, and ships with:
- Tailwind typography styles: Preconfigured classes for headings, lists, and code blocks
- GitHub Flavored Markdown: Tables, task lists, and other GFM features
- Interactive code blocks: Shiki highlighting with built-in copy button
- Math support: LaTeX expressions via
remark-mathand KaTeX - Graceful chunk handling: Proper formatting for unterminated Markdown chunks
- Security hardening: Safe handling of untrusted content with restricted images and links
You can get started with start with AI Elements:
Or as a standalone package:
Read the docs and upgrade your AI-powered streaming.