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Markdown viewer with syntax highlighting, Mermaid diagrams, KaTeX math, TOC, DOCX/HTML export, folder browser & themes. Navigate markdown files with folder browser and bookmarks. Export to Word or HTML. Print to PDF with optimized layouts. View with Mermaid diagrams, KaTeX math, syntax highlighting, and smart TOC - all with 100% privacy (zero data collection). Works with local files, GitHub repos, GitLab wikis, and documentation sites. ⚡ PRODUCTIVITY & UNIQUE FEATURES - Export to DOCX and HTML with perfect formatting preservation - Print to PDF - clean, optimized layout without UI chrome, via browser print - Folder Browser - navigate your entire project structure without leaving the tab - Folder Bookmarks - save and instantly access frequently used directories - Live auto-refresh when files change - perfect for external editor + live preview workflows - Recent Documents tracking - quickly reopen recently viewed files from the popup - Word Count & Reading Time - live statistics as you read: words, characters, estimated time - Reading Progress Bar - visual indicator showing your position in long documents - Raw view toggle - instantly switch between rendered and source view - Table of Contents (TOC) with smooth scrolling for long documents - One-click copy button on all code blocks - KaTeX math equations - inline and display mode with full support for complex mathematical notation - Mermaid diagrams with interactive zoom & pan - download as SVG, PNG, or JPEG - Professional image viewer - lightbox with gallery navigation, zoom, pan, and lazy loading - External link indicators - visual previews and icons for outbound links - Render .txt as Markdown - perfect for llms.txt, changelogs, notes, and AI-generated content 🌐 UNIVERSAL MARKDOWN READER - WORKS EVERYWHERE - Local files (file:///) - enable "Allow access to file URLs" in Chrome settings - GitHub raw files (raw.githubusercontent.com) - GitLab, Bitbucket, Gitea raw file URLs - Any URL ending in .md, .markdown, .mkd, or .mdx served as plain text - Plain .txt files rendered as markdown for convenience 👥 PERFECT FOR - Developers previewing README, CHANGELOG, and API documentation - Technical writers using MarkView alongside their editor for live preview - Students and researchers reading notes with math equations and diagrams - Data scientists reviewing Jupyter markdown cells - AI developers reading llms.txt from repos and documentation sites - Content creators and writers previewing blog posts, wikis, and documentation drafts 🔒 100% PRIVACY-FOCUSED - Zero data collection - no personal information collected, ever - No analytics, no tracking, no telemetry, no cloud services - All processing happens locally in your browser - Your files never leave your device - Settings stored locally using Chrome's storage API - Built on trusted, audited open-source libraries: markdown-it, highlight.js, KaTeX, Mermaid 🚀 QUICK START 1. Install MarkView - click "Add to Chrome" 2. Test instantly: visit https://raw.githubusercontent.com/facebook/react/main/README.md 3. For local files: go to chrome://extensions → MarkView → Details → enable "Allow access to file URLs" 4. Open any .md file - drag & drop, File → Open, or click a link 🔐 PERMISSIONS - Storage: Save theme, font, and layout preferences locally - ActiveTab: Read file content from the current tab for rendering - Downloads: Export to HTML and DOCX files - File URLs: Access local .md files (disabled by default) - Host Permissions: Render files from GitHub, GitLab, and documentation sites All processing is local. No data is ever sent to external servers.
Mermaid Diagram
Use Mermaid diagram: fast mermaid.js diagram maker & flow chart generator with Mermaid live editor for instant visual workflows. 🖼️ Mermaid Diagram: Your Documentation Powerhouse Transform text into visuals with Mermaid Diagram, the advanced solution for technical flowcharts and documentation. Our Mermaid diagram editor enables precise Mermaid text to diagram conversion - boosting efficiency for developers, technical writers, and teams worldwide. 💡 Instant Visualization with Intelligent Rendering • Convert text instantly using Mermaid diagram online tools for rapid results • Build flowcharts, sequence and class layouts immediately • Unlock Mermaid AI for automated creation and smart editing • Real-time previews verify every visual in seconds ⏩ Fast Creation Workflow 1. Use the Mermaid live editor for quick visualization 2. Powerful diagram creator for rapid prototyping 3. Integrate seamlessly into your development pipeline 4. Export to wikis and presentations (SVG, PNG) with one click 🌍 Unlimited Visual Potential › Full support for Mermaid sequence diagram, Mermaid class diagram, entity-relationship structures › Create flowcharts, Gantt charts, mind maps with the built-in maker › Web diagram, pie charts, git graphs - handle advanced technical needs effortlessly › Comprehensive flow chart generator and online chart maker options › Flow diagram builder features organize even the most complex concepts ✨ Innovative & User-Centric Design ▸ Powerful flowchart builder powered by mermaid.js and mermaid js ▸ Instant rendering with accurate parsing of Mermaid code ▸ Custom templates for industry documentation standards ▸ Edit in dark or light mode for maximum comfort 🔒 Reliable Performance ◉ Next-generation rendering for flawless outputs ◉ Compatibility with the latest syntax updates ◉ Lightning-fast generation for detailed systems ◉ Handles projects with hundreds of elements effortlessly 🔄 Flexible Visual Types ➊ Switch between uml diagram maker, flow chart builder, and more ➋ Smart algorithms suggest optimal structures automatically ➌ Version history tracks documentation evolution ➍ Smart template picker for ideal presentation ➎ Chart maker online tools support instant creation from your browser 📖 Clear Guidelines ⬥ Documentation explaining what is a Mermaid diagram ⬥ Transparent policies and helpful error messages ⬥ FAQ section for common issues and solutions ⬥ Tutorials for Mermaid chart and flow chart generator workflows 🛠️ Technical Support ⚙️ Full syntax compatibility for accurate rendering ⚙️ Customizable maker diagram settings: colors, fonts, layouts ⚙️ Multi-format export (SVG, PNG) for universal usage ⚙️ Advanced integration capabilities for development teams ⭐ Enhanced Experience ➤ Intuitive interface for streamlined workflows ➤ Pixel-perfect rendering for accurate Mermaid drawing ➤ Fast access to shortcuts and creation options ➤ Keyboard shortcuts help power users save valuable time 👫 Community Driven ✓ User-powered feature updates and active engagement ✓ Contributions welcome in our open-source ecosystem ✓ Thousands rely on Mermaid diagrams for technical documentation ✓ Transparent roadmap and feedback system 🎁 Exclusive Features ① Unique templates for professional documentation ② Versatile options from basic to comprehensive layouts ③ Flexible benefits for development and business teams 🟢 Dive into Mermaid Diagram Today! Join our community for effortless visual documentation that meets industry standards. Start now and revolutionize how you build, share, and manage technical visuals with the power of text-based creation! 🔸 How is this different from other tools? Advanced rendering delivers instant, professional results with AI Mermaid intelligence. 🔸 Can I create multiple types like sequence and class layouts? Yes! Support for all types enables holistic technical documentation online. 🔸 What benefits does automated intelligence deliver? Rapid prototyping, intelligent suggestions, and streamlined workflows using diagram creator technology. 🔸 How fast can I generate visuals? Usually instant - your input turns into polished output seconds after entry. 🔸 Is privacy protected? Content is local by default, with optional cloud sync arriving soon for enhanced flexibility.
Mermaid Preview
Preview Markdown and Mermaid files, support LaTeX math equations rendering. Mermaid Preview is a powerful extension that instantly renders Markdown and Mermaid diagram files in a beautiful, user-friendly interface. Simply drag and drop your .md or .mermaid files, or paste a URL to preview documentation with formatted text, tables, code blocks, and stunning flowcharts, sequence diagrams, Gantt charts, and more. Features include dark/light theme toggle for comfortable viewing, export functionality to save Mermaid diagrams as high-quality PNG, JPEG, or SVG images, and support for both local files and remote URLs. Perfect for developers, technical writers, and anyone working with technical documentation or creating visual diagrams. The extension uses the latest versions of Mermaid.js and Marked.js libraries to ensure full compatibility with modern syntax and features. Support print markdown or mermaid file.
Markdown Preview
Beautiful markdown file preview with syntax highlighting, multiple themes, and GitHub Flavored Markdown support Transform your markdown files into beautifully formatted documents with GitHub-style rendering, syntax highlighting, and customizable themes. Everything runs locally in your browser - no external API calls, complete privacy. • Advanced Features - Automatic Table of Contents generation - Scroll position memory - Auto-reload for local files - Anchor link navigation 1. Install the extension 2. Enable "Allow access to file URLs" in chrome://extensions 3. Open any .md or .markdown file in Chrome 4. See beautiful formatted output instantly! • .md • .markdown • .mdown • .mkdn • .mdtext • And more... • Theme Selection (Light/Dark) • Content Width (Auto, Full, Fixed sizes) • Auto Reload (for local files) • Line Numbers in code blocks • Table of Contents toggle JavaScript, Python, Java, C, C++, C#, Ruby, Go, Rust, PHP, Swift, Kotlin, TypeScript, HTML, CSS, SQL, Bash, YAML, JSON, XML, and more! 🎯 PERFECT FOR • Developers viewing README files • Technical writers • Documentation reviewers • Students learning markdown • Anyone working with .md files • View project README files • Preview documentation before committing • Read markdown articles offline • Review pull request markdown files • Learn markdown syntax with instant preview 🌟 WHY CHOOSE THIS EXTENSION? • Fast & Lightweight • Beautiful GitHub-style rendering • Complete privacy (no external calls) • Customizable themes and settings • Automatic syntax highlighting • Free and open source • storage: Save your theme and display preferences locally • file:// access: Render local markdown files (opt-in) • http(s): Render markdown files from web URLs • All processing is local - no data transmitted • Manifest V3 (latest Chrome extension standard) • Bundled libraries (no CDN dependencies) • Works 100% offline • No remote code execution • Secure by design Try it now and experience the best way to view markdown files in Chrome!
Markdown Viewer
View markdown files as beautifully rendered HTML with GitHub Flavored Markdown support Transform your markdown files into gorgeously formatted HTML instantly! Markdown Viewer automatically detects .md and .markdown files and renders them with beautiful GitHub-style formatting. Perfect for developers, writers, and anyone who works with markdown files. • GitHub Flavored Markdown - Tables, task lists, strikethrough, and more • Syntax Highlighting - 15+ programming languages (JavaScript, Python, Go, Rust, TypeScript, JSX, TSX, Java, PHP, Ruby, Bash, JSON, YAML, SQL, CSS, and more) • Dark & Light Themes - Easy on the eyes, day or night, with automatic theme persistence • One-Click Copy - Copy code blocks instantly with hover buttons • Task Lists - GitHub-style checkboxes that actually look like checkboxes • Raw View - Toggle between rendered HTML and raw markdown source • Paste & Render - Paste or type markdown directly in the built-in editor and render it on the fly • Render Selected Text - Select markdown on any webpage, click the icon or right-click, and view it beautifully rendered in a new tab • Completely Local - All rendering happens in your browser, zero data collection 🎯 PERFECT FOR • Reading documentation files locally • Reviewing markdown files before committing to Git • Previewing README files for GitHub projects • Reading project notes and specifications • Viewing markdown exports from note-taking apps • Quickly rendering markdown from your clipboard • Developers working with markdown documentation See markdown on any webpage? Render it instantly: • Select any text on a webpage • Click the Markdown Viewer icon in the toolbar, or right-click and choose "Render selection as Markdown" • A new tab opens with the text beautifully rendered Works on any webpage — great for previewing markdown in GitHub comments, pull requests, documentation, chat messages, or anywhere else. Want to quickly preview some markdown? Paste or type it directly: • Click the extension icon (no text selection needed) • Click the { } button in the top-right to open the editor • Paste or type your markdown • Click 📄 (or press Ctrl/Cmd+Enter) to render it Toggle back and forth between editing and rendered view anytime! Perfect for quickly previewing markdown from your clipboard, drafting formatted text, or experimenting with markdown syntax. • 100% local - all rendering happens in your browser • No tracking or analytics whatsoever • No network requests (except images in your markdown) • No data collection of any kind • Open source - review the code yourself on GitHub Supports all standard markdown features plus GitHub Flavored Markdown extensions: • Headers (H1-H6) with proper hierarchy • Bold, italic, strikethrough text formatting • Lists (ordered, unordered, nested) • Links and images (local and remote) • Tables with column alignment • Task lists with interactive checkboxes • Code blocks with syntax highlighting • Inline code formatting • Blockquotes with proper styling • Horizontal rules • Line breaks and paragraphs Beautiful code syntax highlighting for 15+ programming languages: • JavaScript, TypeScript, JSX, TSX • Python, Go, Rust • Java, PHP, Ruby • Bash/Shell scripting • JSON, YAML • SQL, CSS • Markdown itself 1. Install the extension 2. Go to chrome://extensions/ and find "Markdown Viewer" 3. Click "Details" and enable "Allow access to file URLs" (important!) 4. Open any .md file in Chrome, or select text on any webpage and click the extension icon 5. Watch it transform into beautiful HTML! • Light Theme - Clean, readable design with dark text on white background • Dark Theme - Easy on the eyes with light text on dark background • Your theme choice is automatically saved and persists across sessions • 🌙/☀️ Toggle - Switch between dark and light themes instantly • { } Button - Open the markdown editor or view raw source • 📄 Button - Render editor content back to formatted markdown • Filename Display - Always know which file you're viewing • Use relative paths for images:  • Keyboard shortcuts work: Ctrl/Cmd+F to search, Ctrl/Cmd++/- to zoom • Press Ctrl/Cmd+Enter in the editor to quickly render your markdown • Reload (F5) if you edit the markdown file on disk • Works great with locally cloned GitHub repositories • Perfect for viewing documentation while coding This extension is open source under the MIT License. Contributions welcome! GitHub: https://github.com/matpb/markdown-viewer-extension 🤝 BUILT WITH • marked.js - Fast markdown parser with GFM support • Prism.js - Lightweight syntax highlighter • GitHub Markdown CSS - Official GitHub markdown styling Made with ❤️ by humans and AI working together.
