Online Markdown Viewer with HTML Preview

Tracking since Apr 1, 2026.

Changelog

• Apr 9, 2026
  description

  Online Markdown Viewer with HTML Preview helps you view markdown online, open .md files, and turn web pages into clean markdown directly in Chrome or Edge. It removes ads, sidebars, and clutter while preserving headings, lists, tables, links, and clean, readable structure. Use it to extract full articles, selected text, and AI chats, and to capture YouTube transcripts into a cleaner format that is easier to read and reuse. TOC checkboxes help you select sections before copy, print, or save.
  
  Use this online markdown viewer from the toolbar or right-click menu and open the result in a convenient side panel. It works with full pages, selected parts of a page, local .md files, and structured browser-based reading workflows, with Mermaid and KaTeX support for technical content.
  
  🔹 Key Features
  🤖 AI chat extraction from supported chat platforms
  📝 Web page to GitHub Flavored Markdown conversion
  📐 KaTeX math rendering and Mermaid diagram support
  🗂️ Table of Contents with section filtering checkboxes
  🖥️ HTML preview with source view
  🎨 Syntax highlighting, code copy buttons, and dark mode
  💾 Export options: copy, save .md, save .htm, and print to PDF
  🔎 Search with counter, navigation, and zoom controls
  
  🔹 Clean reading for the web
  Our Online Markdown Viewer with HTML Preview is built to make busy sites easier to use:
  🔺 remove banners, menus, and clutter
  🔺 keep titles, code blocks, tables, and links intact
  🔺 make articles, guides, and notes easier to scan or navigate with TOC
  🔺 focus on the main text instead of heavy layout
  
  🔹 Useful for AI chat extraction
  This feature helps turn long AI conversations into cleaner, reusable text. It is useful for saving prompts, answers, notes, and research conversations in a more readable format for reuse, printing, or export.
  
  🔹 HTML preview when you want a rendered view
  Switch between markdown view and HTML preview as needed.
  ➤ open an entire web page in your browser
  ➤ convert only a selected part
  ➤ read the result as markdown
  ➤ preview the rendered version in clean HTML before saving or printing
  That makes the extension useful when you want both a markdown viewer and a practical markdown to html workflow in one place.
  
  🔹 Open files and read them in the browser
  The extension also works well with local .md files and browser-based reading:
  📂 open .md files from your computer
  📂 convert html files opened in your browser into a markdown view in the side panel
  📂 view markdown online without distracting page clutter
  📂 use search and Table of Contents (TOC) checkboxes to select sections for copy, print, or save
  
  🔹 Save output the way you need it
  Different tasks call for different formats. You can:
  💾 copy markdown to the clipboard
  💾 copy rendered HTML
  💾 save as .md or .htm
  💾 print directly or save as PDF using browser or operating system print options.
  This is useful for research notes, documentation, reference material, study content, and offline reading in a web browser.
  
  🔹 Built for structured and technical material
  This Online Markdown Viewer extension supports features that are especially useful on more advanced documents:
  🧩 Mermaid light support for diagrams
  🧩 KaTeX support for math notation
  🧩 GitHub-style document rendering
  🧩 better readability for technical documentation and other structured text
  
  🔹 Useful for transcript, chat, and productivity workflows
  Some material is harder to reuse in its original form. This tool helps by letting you:
  📌 capture YouTube transcripts when they are available on the page
  📌 save transcript output with timestamp and source references
  📌 capture selected AI chat text from the right-click menu
  📌 reuse converted content in Obsidian or Notion markdown flows
  📌 keep consistent formatting across notes and projects
  📌 convert html pages to md files for use in tools such as Jupyter notebooks or GitHub Gist pages.
  It gives you a simple html to markdown workflow for turning cluttered pages into reusable text.
  
  🔹 Practical for everyday browser work
  This online markdown viewer is a good fit for several common situations:
  🌟 developers reading technical documentation
  🌟 writers saving online articles as structured text
  🌟 students collecting study notes and transcript material
  🌟 researchers simplifying cluttered sites
  🌟 anyone who wants markdown view, HTML preview, TOC, search, and print in one extension
  
  🔹 Privacy-friendly and lightweight
  ✅ no tracking of browsing activity
  ✅ no account required
  ✅ works directly in your browser
  ✅ focused permissions for local use and export workflows
  
  🔹 Frequently asked questions
  ❓ Can I convert only part of a page?
  💡 Yes. Select a section and open only that fragment in the viewer.
  ❓ Can I open local .md files?
  💡 Yes. You can open .md files and view them with HTML preview when needed.
  ❓ Does it support technical documents?
  💡 Yes. It supports Mermaid-js/tiny, KaTeX, TOC, search, text size controls, and print functions.
  ❓ Can it capture YouTube transcripts?
  💡 Yes. When a transcript is available, it can be captured as structured text.
  
  Online Markdown Viewer with HTML Preview is a practical markdown viewer extension for viewing, extracting, previewing, printing, and saving clean text from web pages and local .md files directly in Chrome or Edge.

  Online Markdown Viewer with HTML Preview lets you view markdown online, open .md and .json files for comfortable reading, and convert web pages into clean markdown directly in Chrome or Edge. It removes ads, sidebars, and clutter while preserving headings, lists, tables, links, and clean, readable structure. Use it to extract full articles, selected text, and AI chats, and to capture YouTube transcripts into a cleaner format that's easier to read and reuse. TOC checkboxes let you pick the sections you want before copying, printing, or saving.
  
  Use this online markdown viewer from the toolbar or right-click menu and open the result in a convenient side panel. It works with full pages, selected parts of a page, local .md files, and structured browser-based reading workflows, with Mermaid and KaTeX support for technical content.
  
  🔹 Key Features
  🤖 AI chat extraction from supported chat platforms
  🗂️ Table of Contents with section filtering checkboxes
  🎨 Syntax highlighting, code copy buttons, and dark mode
  📝 Web page to GitHub Flavored Markdown conversion
  📐 KaTeX math rendering and Mermaid diagram support
  🖥️ HTML preview with source view
  💾 Export options: copy, save .md, save .htm, and print to PDF
  🔎 Search with counter, navigation, and zoom controls
  
  🔹 Clean reading for the web
  Our Online Markdown Viewer with HTML Preview is built to make busy sites easier to use:
  🔺 remove banners, menus, and clutter
  🔺 keep titles, code blocks, tables, and links intact
  🔺 make articles, guides, and notes easier to scan or navigate with TOC
  🔺 focus on the main text instead of heavy layout
  
  🔹 Useful for AI chat extraction
  This feature helps turn long AI conversations into cleaner, reusable text. It is useful for saving prompts, answers, notes, and research conversations in a more readable format for reuse, printing, or export.
  
  🔹 HTML preview when you want a rendered view
  Switch between markdown view and HTML preview as needed.
  ➤ open an entire web page in your browser
  ➤ convert only a selected part
  ➤ read the result as markdown
  ➤ preview the rendered version in clean HTML before saving or printing
  That makes the extension useful when you want both a markdown viewer and a practical markdown to html workflow in one place.
  
  🔹 Open files and read them in the viewer
  The extension also works well with local .md files and browser-based reading:
  📂 open and convert .md, .json and .mht files from your computer
  📂 convert html files opened in your browser into a markdown view in the side panel
  📂 view markdown online without distracting page clutter
  📂 use search and Table of Contents (TOC) checkboxes to select sections for copy, print, or save
  
  🔹 Save output the way you need it
  Different tasks call for different formats. You can:
  💾 copy markdown to the clipboard
  💾 copy rendered HTML
  💾 save as .md or .htm
  💾 print directly or save as PDF using browser or operating system print options.
  This is useful for research notes, documentation, reference material, study content, and offline reading in a web browser.
  
  🔹 Built for structured and technical material
  This Online Markdown Viewer extension supports features that are especially useful on more advanced documents:
  🧩 Mermaid light support for diagrams
  🧩 KaTeX support for math notation
  🧩 GitHub-style document rendering
  🧩 better readability for technical documentation and other structured text
  
  🔹 Useful for transcript, chat, and productivity workflows
  Some material is harder to reuse in its original form. This tool helps by letting you:
  📌 capture YouTube transcripts when they are available on the page
  📌 save transcript output with timestamp and source references
  📌 capture selected AI chat text from the right-click menu
  📌 reuse converted content in Obsidian or Notion markdown flows
  📌 keep consistent formatting across notes and projects
  📌 convert html pages to md files for use in tools such as Jupyter notebooks or GitHub Gist pages.
  It gives you a simple html to markdown workflow for turning cluttered pages into reusable text.
  
  🔹 Practical for everyday browser work
  This online markdown viewer is a good fit for several common situations:
  🌟 developers reading technical documentation
  🌟 writers saving online articles as structured text
  🌟 students collecting study notes and transcript material
  🌟 researchers simplifying cluttered sites
  🌟 anyone who wants markdown view, HTML preview, TOC, search, and print in one extension
  
  🔹 Privacy-friendly and lightweight
  ✅ no tracking of browsing activity
  ✅ no account required
  ✅ works directly in your browser
  ✅ focused permissions for local use and export workflows
  
  🔹 Frequently asked questions
  ❓ Can I convert only part of a page?
  💡 Yes. Select a section and open only that fragment in the viewer.
  ❓ Can I open local .md files?
  💡 Yes. You can open .md files and view them with HTML preview when needed.
  ❓ Does it support technical documents?
  💡 Yes. It supports Mermaid-js/tiny, KaTeX, TOC, search, text size controls, and print functions.
  ❓ Can it capture YouTube transcripts?
  💡 Yes. When a transcript is available, it can be captured as structured text.
  
  Online Markdown Viewer with HTML Preview is a practical markdown viewer extension for viewing, extracting, previewing, printing, and saving clean text from web pages and local .md files directly in Chrome or Edge.

Permissions & access

Permissions

activeTabtabsscriptingclipboardWritedownloadsstoragesidePanelcontextMenus

Host access

None declared

Screenshots

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