Drop any .md file and read it rendered — headings, tables, code, task lists, and Mermaid diagrams. Free, private, and nothing leaves your browser.
An MD file viewer is a tool that opens a Markdown (.md) file and renders it as a formatted document — turning raw `## Heading` and `| table |` syntax into styled headings, lists, tables, code blocks, and diagrams you can actually read. It's the fastest way to view a .md file you've been sent or that an AI tool generated, without installing anything or learning Markdown syntax.
Drop a file (.md, .markdown, .txt, or .mdx) onto the viewer, or click to browse, and it renders instantly with full GitHub Flavored Markdown: tables, task lists, strikethrough, fenced code with highlighting, and Mermaid diagrams, using marked.js with DOMPurify sanitization. Your file is read locally and never uploaded. For viewing .md files all day on a Mac — with Finder QuickLook preview, live reload when a file changes, and a Library window for browsing folders of docs — MacMD Viewer is the native app built for the job.
Drop your .md file onto this MD file viewer (or click to browse) and it renders instantly in your browser — headings, tables, code, and Mermaid diagrams included. Nothing is uploaded; the file is read locally on your device.
A viewer renders a .md file for reading, with no editing — fast and distraction-free. An editor (like VS Code or Typora) lets you write and change the file. If you only need to read Markdown someone sent you or an AI tool produced, a viewer is the simpler choice. To edit Markdown instead, use the Markdown preview tool.
Yes. Your file never leaves your browser. All Markdown parsing and rendering happen locally on your device using marked.js and DOMPurify. Nothing is uploaded, stored, or logged.
You can open .md, .markdown, .txt, and .mdx files up to 512KB. The viewer renders full GitHub Flavored Markdown including tables, task lists, strikethrough, fenced code blocks, and Mermaid diagrams.
This browser tool works on any device. For viewing .md files regularly on a Mac, MacMD Viewer ($19.99 one-time) is a native app that opens files instantly, adds a Finder QuickLook preview (hit Space on any .md file), and live-reloads when the file changes — handy for AI-generated output.