Open any markdown file and read it the way it was meant to look — headings, tables, syntax-highlighted code, even Mermaid diagrams. Free, no sign-up, and nothing is uploaded: rendering happens entirely in your browser.
How to view a markdown file online
- Drop your
.mdfile into the box above — or click it to browse, or paste markdown from your clipboard. - Your file renders instantly, on your device. There is no upload step; nothing is sent to any server.
- Read it: GitHub-flavored markdown with tables, task lists, footnotes, syntax-highlighted code, and Mermaid diagrams. Toggle light or dark reading themes.
Private by architecture, not by promise
Most "online viewers" upload your file to a server to convert it. This one doesn't — the renderer runs as JavaScript in your browser, so your notes, specs, and internal docs never leave your machine. Disconnect from the internet after the page loads and it still works.
Rendering that matches the apps
This viewer uses the exact same rendering engine as the Read.md apps for iPhone, iPad, Android, and Mac: the same markdown pipeline, the same syntax highlighting, the same Mermaid diagram support most viewers lack. What you see here is what you'll see on your phone.
Frequently asked
Is it free? Yes — the web viewer is free, no account, no watermark.
What files can it open? .md, .markdown and variants, plus plain .txt. See also: what an MD file is.
Does it work offline? Once loaded, yes. For a true offline reader with a library of your files, the apps are built for exactly that:
Reading .md files regularly on a phone or Mac? The Read.md app keeps your recent files, remembers your place, and opens files straight from Files, AirDrop, or GitHub.