Markdown Horizontal Line: Dividers, Rules, and Common Fixes
Create a Markdown horizontal line with ---, ***, or ___. Learn why a divider becomes a heading, how indentation changes it, and when to use a line break.
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The MD File Viewer Blog
Guides and articles about Markdown, online file viewing, and getting more out of the tools.
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Markdown Underline: What Works on GitHub and Other Renderers
Markdown has no native underline syntax. Learn when <ins> and <u> work, why __text__ is bold, and how to choose a portable alternative.
What Is an .md File? How to Open, Edit, and Convert .md Files
New to .md files? Learn what an .md file is, which programs open it, how to edit and convert Markdown files, and why the .md file extension is everywhere in 2026.
How to Create a Table of Contents in Markdown
Learn how to make a table of contents in Markdown — manual TOC links using heading anchors, auto-generated TOCs, and best practices for long documents, docs sites, and READMEs.
What Is Markdown? A Beginner-Friendly Introduction
Markdown is a lightweight way to format plain text that renders into clean HTML. Learn the basics, why it matters, and where the name comes from.
How to Write a Great GitHub README in Markdown
Learn github readme markdown step by step: essential sections, structure tips, a copy-pasteable skeleton, common mistakes, and how to preview before you push.
How to Convert Markdown to an Image (PNG, JPG)
Want to share Markdown as an image? Learn how to convert Markdown to PNG or JPG — using browser screenshot of the rendered preview, online converters, and command-line tools, with tips for clean output.
Markdown Cheat Sheet — The Syntax You'll Use Every Day
A compact Markdown reference covering headings, emphasis, lists, links, code, tables, and blockquotes. Copy any snippet into the homepage editor to see it render.
Markdown vs HTML: Which Should You Use in 2026?
Confused by markdown vs html? This guide compares readability, learning curve, and formatting power so you know exactly when to use each in 2026.