Streamdown

streamdown.ai
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Enhanced React Markdown component specifically designed for handling AI-generated streaming content with security and style.

Description

Streamdown is a specialized React Markdown component designed for AI-powered streaming applications. It serves as a drop-in replacement for react-markdown with enhanced capabilities for parsing and rendering streaming Markdown content. The tool focuses on solving challenges related to tokenized and streamed Markdown formatting, offering built-in security hardening, GitHub Flavored Markdown support, beautiful code blocks with Shiki highlighting, LaTeX math expressions, Mermaid diagrams, and unterminated Markdown block styling. Developed by Vercel, Streamdown powers AI Elements' Response component while remaining available as a standalone package for developers working on AI chat interfaces and real-time content streaming applications.

Installation

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Features

🚀 AI-Optimized Streaming
Streamdown specializes in parsing and rendering tokenized Markdown streams, handling unterminated blocks and partial syntax gracefully. It maintains perfect formatting during content streaming, making it ideal for AI cha
🔒 Built-in Security Controls
Provides configurable security hardening with allowed image/link prefixes and default origin settings. Protects against potential prompt injection attacks while maintaining flexibility for trusted content sources.
🎨 Rich Formatting Support
Supports GitHub Flavored Markdown, LaTeX math expressions, Mermaid diagrams, and beautiful Shiki-highlighted code blocks with copy functionality. Comes with built-in Tailwind typography styles for consistent rendering.

Use cases

Streaming AI chat responses with Markdown
Real-time documentation generation
Interactive code tutorial streaming
Dynamic mathematical content display
Visual diagram rendering from text

FAQ

Streamdown is a React Markdown component specifically designed for handling AI-generated streaming content with enhanced formatting and security features.

Streamdown adds specialized handling for streaming content, security controls, and built-in support for math expressions and diagrams while maintaining API compatibility.

Yes, Streamdown is available as a standalone package that can be installed separately from the broader AI Elements ecosystem.

Streamdown supports GitHub Flavored Markdown (GFM) out of the box, along with LaTeX math and Mermaid diagrams through plugins.

Yes, it includes configurable security controls for images and links to prevent potential injection attacks.

While optimized for Tailwind, Streamdown can be used with other CSS systems through custom components and styling.

Yes, Streamdown uses Shiki which supports theme customization and various programming language highlighters.

Streamdown has special parsing logic to gracefully handle unterminated blocks common in streaming scenarios.

Streamdown is optimized for performance but adds some processing compared to basic Markdown parsers due to its advanced features.

The source is available on GitHub at https://github.com/vercel/streamdown

Specs

Type Tool
SectionAI Website Builder
Pricing free
Platform Web only
Systems web
Hostingcloud
Installsaas
Site languageen

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