Markdown Viewer – Workspace, Notes, Diagrams & Export

Turn local and web Markdown into a workspace with folders, bookmarks, outline, annotations, search, diagrams, and export.

Turn Markdown files into a focused browser workspace, not just a formatted page. Open a local or web document and keep its files, structure, notes, search, diagrams, appearance, and export tools together. Core rendering and storage happen on your device by default, with no analytics, account, or document server. FILES AND WORKSPACE • Pick a folder once, then browse its documents from the left sidebar without leaving the page • Save folder bookmarks and reopen recent documents • Auto-refresh the current file while you edit it • Search the current document or every file in the selected folder • Use the command palette and customizable keyboard shortcuts to reach tools quickly NAVIGATION AND NOTES • Navigate H1 to H6 from a searchable, collapsible outline with scroll tracking • Highlight text in four colors, underline passages, or attach comments • Filter annotations and jump from any note to its exact place in the document • Resume from your saved reading position when you reopen a document DIAGRAMS, MATH, AND STRUCTURE • Render Mermaid, Graphviz / DOT, KaTeX math, and interactive Vega-Lite charts • Use optional, consent-based PlantUML rendering • Reopen documents faster with a local rendered-diagram cache • Turn the heading structure into a mind map and download it as SVG, PNG, or JPEG • Open diagrams full screen and download supported source or image formats READING AND APPEARANCE • Tables, task lists, footnotes, alerts, definition lists, emoji, front matter, and syntax highlighting • Light, dark, and system color modes with adjustable fonts, width, spacing, and code wrapping • Seven document themes for different reading and delivery styles • Five bundled background skins plus an optional local custom image • Image lightbox, reading progress, word count, character count, and CJK-aware reading time SEARCH • Keyword, whole-word, and case-sensitive folder search are free • Pro-labelled tools add regular expressions, path/type/date filters, saved searches, and CSV export • Results show file, path, line, and context and open at the matching location EXPORT AND PRESENT • Export a self-contained HTML file, Word document, or clean print/PDF • Professional Word adds native styles, an updatable table of contents, page numbers, sharper diagrams, and editable common formulas • Turn a document into slides with keyboard navigation, progress, and autoplay • Professional themes and skins can carry into presentation and export WHERE IT WORKS • Local files: enable "Allow access to file URLs" in the extension details, then open a .md file • Raw files from Git hosting, corporate tools, storage buckets, and other web hosts • URLs ending in .md, .markdown, or .mdx, plus optional .txt rendering • Existing rendered repository and documentation pages keep their native view PRIVACY • No extension analytics, tracking, account, or developer-operated document server • All executable extension code and rendering libraries are bundled • Opened document HTML is sanitized before display • PlantUML, link previews, and remote auto-refresh are optional and off by default • Vega-Lite remote data and image resources are blocked • Documents can load external resources they explicitly reference under normal browser controls LAUNCH ACCESS Every Pro-labelled feature is included in Launch Access in version 1.0.1. No account or license key is required, and this release has no automatic cutoff. Available in 15 interface languages. Support: https://markdownviewerextension.com/support Privacy policy: https://markdownviewerextension.com/privacy-policy ```