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About Markstream Vue
Markstream Vue is a MIT-licensed streaming Markdown renderer for AI chat interfaces that paints incomplete Markdown as tokens arrive. It supports Mermaid diagrams, KaTeX, streaming code blocks, SSR, and integrates with Vue, React, Svelte, and Angular.
Updated 7/20/2026
Key Features
- Streaming Markdown rendering — paints incomplete Markdown incrementally as tokens arrive so chat UIs update live
- Mermaid diagrams — renders flowcharts and diagrams from streamed Markdown
- KaTeX math — displays math formulas as content streams in
- Streaming code blocks — syntax-highlighted code blocks that fill in real time
- Long-response handling — built for large AI outputs without UI lag
- SSR support — server-side rendering compatibility for faster first paint
- Multi-framework — drop-in integrations for Vue, React, Svelte, and Angular
- Open-source MIT — free to use, modify, and ship in commercial projects
Pricing Structure
- Open Source — $0 — MIT-licensed and free to use and modify. View the docs and playground at <a href='https://markstream-vue.simonhe.me/'>markstream-vue.simonhe.me</a>.
Why People Use It
AI chat interfaces need to show answers as they generate, not wait for a finished response. Markstream Vue lets developers render Markdown, diagrams, math, and code the instant tokens arrive, keeping the UI responsive across Vue, React, Svelte, and Angular apps.