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A graph drawing and checking tool that supports DOT language and Mermaid notation. It can also output as an image. Is it hard to view markdown? This tool allows you to save large images without unnecessary clutter. With this tool, you can easily create, display, and edit various types of diagrams using DOT language and Mermaid.js notation. This tool performs all processing locally, and your input code is not sent externally.
Markdown Viewer with Mermaid
Enhanced Markdown viewer with TOC, themes, search, and Mermaid diagram support
Mermaid Previewer Sidebar
Instantly preview Mermaid diagrams in a Chrome sidebar. Ideal for ChatGPT, markdown notes, and flowchart editing. This Chrome extension enables real-time preview of Mermaid.js diagrams in a persistent sidebar, making diagram creation seamless and efficient. Perfect for AI chat workflows (ChatGPT, Gemini, Claude), Markdown editing, technical documentation, and flowchart design. Real-time rendering of Mermaid diagrams as you type Multiple themes including hand-drawn/sketch styles for visual variety Persistent sidebar that works alongside your browser tabs One-click copy & paste support when chatting with AI assistants Fully compatible with Markdown and popular note-taking apps 🚀 Enhance your productivity by instantly visualizing flowcharts, sequence diagrams, and graphs without switching contexts. Ideal for developers, writers, and anyone who uses Mermaid for quick diagramming.
Graphviz Render
Render Graphviz on web pages. Render Graphviz graphs that are embedded in web pages. Currently, only GitHub is supported.
MarkView: Markdown Viewer with Mermaid Diagrams, Math & Export
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.
