Markstream.
Markstream is an open-source family of Markdown renderers for text that arrives in pieces.
Project overview
The short version
Markstream is an open-source family of Markdown renderers for text that arrives in pieces. It supports LLM token streams, SSE and WebSocket output, AI chat messages, and long documents across Vue, React, Svelte, Angular, Nuxt, and Next.js. The public docs also cover SSR, dependency choices, parsed nodes, and raw content.
Project facts
Project details
- Category
- Developer Tools
- Type
- Open-source streaming Markdown renderer libraryOfficial documentation · checked Sep 25, 2026
- Platforms
- WebOfficial documentation · checked Sep 25, 2026
- Pricing
- Free download: The official repository is MIT-licensed and the docs provide package-install commands.Official documentation · checked Sep 25, 2026
- Availability
- Documentation and installable packages are publicly available; package maturity varies by framework.Official documentation · checked Sep 25, 2026
- Published
- Jul 21, 2026
- Last updated
- Oct 24, 2026
Details come from the published Project Note and named sources. Check the project site for current terms. The Note may have more context when a fact isn't recorded here.
Before you visit
Good to know
Built for
- Developers building AI chat interfaces
- Teams maintaining documentation sites or content tools
- Developers migrating from another Markdown renderer
- Markstream makes the most sense for developers whose interfaces cannot wait for a complete response before rendering readable Markdown.
- The framework guides may also help teams replacing another renderer or deciding whether to pass raw content or parsed nodes.
Requirements
- Install a framework-specific package
- Optional peer packages are needed for selected capabilities such as diagrams or enhanced code blocks
Official documentation · checked Sep 25, 2026
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