# Markdown Viewer Online > Markdown Viewer Online (https://markdownviewer.gloath.com) is a free online Markdown viewer and editor made by Gloath Limited, a New Zealand company. It lets anyone open, view, edit and create Markdown (.md) files directly in a web browser with a live preview, on desktop or mobile, with no sign-up. Files are processed locally in the browser and are not uploaded to a server. An optional Pro plan removes the limit on documents open in tabs. ## Key facts - Website: https://markdownviewer.gloath.com/ - What it does: view .md files formatted, edit Markdown with live side-by-side preview, create new .md files - Price: free, no account required (up to 4 documents open in tabs at once); optional Pro subscription for unlimited tabs, see https://markdownviewer.gloath.com/pricing/ - Accounts: optional, only for Pro; one Gloath account (https://accounts.gloath.com) works across all Gloath apps - Privacy: documents are rendered in the browser and saved only in the browser's local storage; share links embed the document in the URL fragment, which is never sent to the server - Supported syntax: CommonMark and GitHub Flavored Markdown (tables, task lists, strikethrough, autolinks, footnotes), GitHub-style alerts, syntax-highlighted code, KaTeX math, Mermaid diagrams - Opening files: file picker, drag and drop, paste, or a URL (GitHub, GitLab, Bitbucket and Gist links are converted to raw files automatically); you can also link directly with https://markdownviewer.gloath.com/?url= - Exporting: download .md, download standalone .html, print or save as PDF, copy formatted text, copy Markdown, shareable link - Platforms: any modern browser on Windows, macOS, Linux, ChromeOS, iOS and Android; installable as an app (PWA) and works offline after the first visit - Made by: Gloath Limited (https://gloath.com), New Zealand ## Features - Instant live preview: See your Markdown rendered as you type, side by side, with synced scrolling. - Private by design: Files are opened and rendered in your browser. Nothing is uploaded to our servers. - GitHub Flavored Markdown: Tables, task lists, footnotes, alerts, syntax highlighting, math (KaTeX) and Mermaid diagrams. - Export anywhere: Download as .md or HTML, save as PDF, copy rich HTML, or share a link to your document. ## Frequently asked questions ### How do I open a .md file online? Click Open (or press Ctrl/⌘ + O) and choose your .md file, or simply drag and drop the file onto the page. It opens instantly with a formatted preview. You can also paste a link to a raw Markdown file, such as a GitHub README. ### Is Markdown Viewer Online free? Yes. It is free to use with no account or sign-up required, including up to four documents open in tabs at once. An optional Pro plan lets you keep as many tabs open as you like. ### Are my files uploaded anywhere? No. Your files are read and rendered entirely in your browser and your documents are saved only in your browser’s local storage on your device. Share links store the document inside the link itself, not on a server. ### Can I create a new Markdown file? Yes. Click New, write in the editor using the formatting toolbar or Markdown syntax, then download it as a .md file, export it to HTML, or save it as a PDF. ### Which Markdown features are supported? CommonMark and GitHub Flavored Markdown: headings, lists, links, images, tables, task lists, strikethrough, footnotes, code blocks with syntax highlighting, GitHub-style alerts, KaTeX math and Mermaid diagrams. ### Does it work on phones and offline? Yes. The site works on iPhone, Android, tablets and desktops, and can be installed as an app from your browser. After your first visit it also works offline. ### How do I convert Markdown to PDF? Open your file, choose Export → Print / Save as PDF, then select “Save as PDF” as the printer. Only the formatted document is printed, without the editor. ## Guides - [Markdown Cheat Sheet](https://markdownviewer.gloath.com/markdown-cheat-sheet/): The complete Markdown cheat sheet with examples: headings, emphasis, lists, links, images, code, tables, task lists, footnotes, alerts, math and diagrams. - [How to Open .md Files (Windows, Mac, iPhone, Android & Online)](https://markdownviewer.gloath.com/guides/how-to-open-md-files/): What an .md file is and the easiest ways to open and read one — online in your browser, or on Windows, macOS, iPhone, iPad and Android. - [How to Convert Markdown to PDF (Free, Online)](https://markdownviewer.gloath.com/guides/markdown-to-pdf/): Convert any Markdown (.md) file to a clean, well-formatted PDF in your browser — free, with no upload. Plus tips for page breaks, margins and code blocks. - [What Is Markdown? A Plain-English Introduction](https://markdownviewer.gloath.com/guides/what-is-markdown/): Markdown is a simple way to format plain text using symbols like # and *. Learn what it is, where it’s used, how .md files work and how to start writing it. ## Company & policies - [About Markdown Viewer Online](https://markdownviewer.gloath.com/about/): Markdown Viewer Online is a free, private online Markdown viewer and editor by Gloath Limited. How it works, how your data is handled and how to contact us. - [Privacy Policy](https://markdownviewer.gloath.com/privacy/): How Gloath Limited handles your information when you use Markdown Viewer Online. Your documents stay in your browser and are never uploaded. - [Terms of Use](https://markdownviewer.gloath.com/terms/): The terms that apply when you use Markdown Viewer Online, an online Markdown viewer and editor by Gloath Limited, including the free plan and Pro. - [Contact](https://markdownviewer.gloath.com/contact/): How to contact Gloath Limited about Markdown Viewer Online, your Gloath account, billing or privacy. ## Optional - [Full text of all guides](https://markdownviewer.gloath.com/llms-full.txt): every guide on this site in one Markdown file