MarkVision

MarkVision transforms any Markdown (.md / .markdown) URL into a beautifully styled document — automatically, with no click needed. Whether you're reading raw GitHub files, local documentation, or your own notes, MarkVision renders them instantly with proper headings, tables, code blocks, and more. ✨ KEY FEATURES 📄 Auto-Render Navigate to any .md or .markdown URL and MarkVision immediately renders it as a styled page. Works on GitHub raw files, GitLab, Gitea, local file:// URLs, and any other markdown URL. ✏️ Live Split-Pane Editor A full Markdown editor opens in a new tab with a real-time preview pane. Write on the left, see the result on the right — instantly. 💡 Syntax Highlighting 190+ programming languages highlighted via highlight.js — your code blocks look great every time. ∑ Math Equations (KaTeX) Render inline math $...$ and display math $$...$$ equations with beautiful LaTeX-quality output. 📊 Mermaid Diagrams Flowcharts, sequence diagrams, Gantt charts, state diagrams, and more — rendered inline from fenced code blocks. 🕸 Graphviz (DOT) Client-side graph rendering via Viz.js — no external service required. 🌿 PlantUML UML diagrams rendered via plantuml.com — class diagrams, activity diagrams, use cases, and more. 📚 Table of Contents Auto-generated TOC from your headings, with scroll-sync highlight to show your current position. 🖼 Image Lightbox Click any image to zoom in. Scroll the mouse wheel to scale. Click outside to close. 🎨 3 Themes Choose between GitHub, Dark, and Academic themes. Your preference is remembered per context. 💾 Auto-Save & Document Manager Editor content is auto-saved locally. Your documents are stored in browser storage — nothing leaves your device (except PlantUML diagrams rendered via plantuml.com). 🔒 PRIVACY MarkVision stores all data in your local browser storage only. No telemetry, no analytics, no accounts required. The only external network request is PlantUML diagram rendering via plantuml.com.