Markdown Viewer - MD File Reader Online
Open and preview MD files instantly in your browser — no install needed. Free online markdown viewer. Upload .md files or paste markdown to see live rendering with code highlighting and auto TOC.
Markdown Editor
Preview
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Frequently Asked Questions
What is an .md file?
An MD file is a text file written in Markdown format. Headings are expressed with the # symbol, bold text with **text**, and other formatting with simple symbols. Markdown is widely used in GitHub READMEs, technical documentation, and note-taking apps.
What is Markdown?
Markdown is a lightweight markup language where formatting is expressed with simple symbols in plain text. # creates a heading, **text** makes text bold, and - creates a list. It is easy to write and converts to HTML easily, making it popular with developers and writers.
Can I preview GitHub README files?
Yes, copy the content of a GitHub README.md file or upload the file, and it will be rendered similarly to how it looks on GitHub.
Are math formulas (LaTeX) supported?
Yes, LaTeX formulas in the format $formula$ or $$formula$$ are rendered and displayed. Academic documents or notes containing mathematical formulas are displayed correctly.
Is code highlighting available?
Yes, if a language is specified in a code block (```), the code is color-highlighted according to that language's syntax. JavaScript, Python, HTML, CSS, and other major languages are supported.
What is this MD File Viewer?
A free online Markdown viewer that lets you open and preview MD files instantly in your browser — no install required. Upload any .md file or paste markdown to see it rendered with headings, code blocks, tables, and more.
How to Use
- Open Your MD File: Click the Upload File button or drag and drop your .md file onto the editor. You can also type or paste markdown directly.
- Check the Preview: The right panel shows the rendered result in real time. If headings are present, a table of contents is generated automatically.
- Use the Result: Copy the rendered HTML to your clipboard, or switch to Preview Only mode to read the document without distractions.
Features
- Live Preview: Preview updates instantly as you type
- Code Highlighting: Syntax highlighting for 100+ languages in code blocks
- Auto TOC: Headings are detected automatically to generate a clickable table of contents
- File Upload: Drag & drop or select a .md file to preview it instantly
Who is this for?
- Developers: Preview GitHub READMEs, API docs, and project documentation before committing
- Writers & Bloggers: Review blog drafts written in markdown before publishing
- Technical Writers: Quickly check md file contents without Obsidian, Notion, or VSCode
Help us improve this tool
Share what you like, what needs work, or features you'd like to see