Markdown Viewer Editor is a desktop Markdown editor for Windows that blends WYSIWYG editing, a source editor with line numbers, live preview, and split view\u2014ideal for notes, READMEs, technical docs, and long-form writing. If you are looking for a Typora-style Markdown experience with GitHub Flavored Markdown (GFM) extras, this app is built for daily use.\n\nWrite the way you prefer. Use the rich toolbar for bold, italic, headings, lists, code, links, images, and tables\u2014or stay in raw Markdown in source mode with syntax-friendly behavior. Focus mode and typewriter mode help you stay immersed; an emoji picker speeds up expressive notes.\n\nGo beyond basic Markdown. Render YAML front matter, table of contents from [TOC], GitHub Alerts, footnotes, highlights, and superscript/subscript. KaTeX handles inline and block math; Mermaid turns text into flowcharts, sequence diagrams, and Gantt charts. Embedded HTML and media-friendly tags extend previews when you need them.\n\nOrganize files like a workspace. Browse folders, manage files, use tabs and Quick Open (Ctrl+P), track recent files, and rely on auto-save with draft recovery after crashes. Find and replace supports regex; search can span open documents.\n\nPublish and share your work. Export to HTML, PDF, Word (.docx), LaTeX, EPUB, or a long PNG; import Word where supported. Optional custom export commands and Mermaid \u2192 PNG fit automation workflows.\n\nUse Git tools for history and optional sync-on-save patterns when your repo is configured.\n\nMake it yours. Choose from multiple light/dark themes, load custom CSS for preview, adjust fonts and zoom, and use customizable shortcuts. The app supports English and Chinese UI strings among its localization options.\n\nWhether you need a Markdown note app, a GFM-compatible editor, or a Windows Markdown IDE with math, diagrams, and professional export, Markdown Viewer Editor keeps your writing flow fast and your output portable.