Markdown Reader Online - Preview .MD Files Instantly
Paste or open Markdown files and see a safe live HTML preview
What is this Markdown reader?
Markdown Reader Online turns plain Markdown text into a clean formatted preview in a separate browser tab. It is ideal for checking README files, documentation, changelogs, notes, product specs, and developer content before publishing.
How to use it
- Upload a .md, .markdown or .txt file, or paste Markdown into the text box.
- Click View Markdown to open a polished preview in a new tab.
- Copy the original Markdown or sanitized HTML whenever you need it.
Key features
- File reading happens locally in your browser and is not stored on the server.
- Markdown is converted to HTML and sanitized before previewing.
- The reader supports headings, lists, links, images, blockquotes, code blocks and tables.
Common use cases
Use the reader to preview README files, GitHub-style tables, help docs, release notes, project briefs, content drafts, and Markdown snippets shared by teammates or AI tools.
Frequently asked questions
Everything you need to know about this tool.
What is a Markdown reader?
A Markdown reader turns plain-text Markdown syntax into a formatted preview with headings, lists, links, code blocks and tables.
Can I open .md files online?
Yes. Upload a .md, .markdown or .txt file and the reader will show the raw text and rendered preview instantly.
Is Markdown preview safe?
Yes. The generated HTML is sanitized before display to remove scripts and unsafe attributes.
Can I copy the HTML output?
Yes. You can copy the sanitized HTML preview or download it as an HTML file.
Does this support GitHub-style Markdown?
The preview supports common GitHub-style Markdown features such as tables, fenced code blocks, links and blockquotes.