# Show GN: Markdown Viewer

> Clean Markdown view of GeekNews topic #31993. Use the original source for factual precision when an external source URL is present.

## Metadata

- GeekNews HTML: [https://news.hada.io/topic?id=31993](https://news.hada.io/topic?id=31993)
- GeekNews Markdown: [https://news.hada.io/topic/31993.md](https://news.hada.io/topic/31993.md)
- Type: show
- Author: [mdorg](https://news.hada.io/@mdorg)
- Published: 2026-07-31T02:10:49+09:00
- Updated: 2026-07-31T02:10:49+09:00
- Original source: [markdownviewer.org](https://markdownviewer.org/)
- Points: 1
- Comments: 0

## Topic Body

- Free to use with zero sign-up or account creation required  
- Live split-screen Markdown editor with real-time preview and synchronized scrolling  
- Full GitHub Flavored Markdown (GFM) support: tables, task lists, autolinks, footnotes, callouts  
- Syntax highlighting for 190+ programming languages with 1-click code copying  
- KaTeX LaTeX math expression rendering (inline and display blocks)  
- Interactive Mermaid diagrams with fullscreen zoom, SVG copying, and PNG/SVG export  
- 50+ preset preview themes, 1,900+ Google Fonts, and custom CSS styling  
- Multi-tab document management, local auto-save, and drag-and-drop import  
- Comprehensive export: Markdown (.md), standalone HTML, formatted PDF, PNG, and WeChat MP formatted rich text  
- Markdown format enhancement (1-click formatting) and long image splitting/pagination  
- 100% local-first browser processing—documents are never uploaded to a storage server  
- Private URL sharing via compressed client-side hash (no server database needed)

## Comments



_No public comments on this page._