How to Use This Markdown Editor

Write and preview Markdown in real-time with our split-pane editor. Supports GitHub Flavored Markdown including tables, task lists, code blocks with syntax highlighting, and more.

1. Enter your values in the input fields provided.
2. The tool calculates results automatically as you type.
3. View detailed results and breakdowns below the calculator.
4. Copy or download results as needed.
5. All data stays in your browser — nothing is uploaded to any server.

What is Markdown?

Markdown is a lightweight markup language created by John Gruber in 2004. It uses simple text formatting that converts to HTML. Markdown is widely used for README files, documentation, blog posts, comments, and messaging. Its simplicity makes it faster than writing HTML while remaining readable in plain text form.

Essential Markdown Syntax

Headers use # symbols (# H1, ## H2, ### H3). Bold text uses **double asterisks**. Italic uses *single asterisks*. Links use [text](url). Images use . Lists use - or * for unordered, 1. for ordered. Code blocks use triple backticks. Blockquotes use > at the start of a line.

GitHub Flavored Markdown

GitHub extended standard Markdown with useful additions: task lists (- [ ] unchecked, - [x] checked), tables (using pipes and dashes), strikethrough (~~text~~), syntax-highlighted code blocks (specify language after opening backticks), auto-linked URLs, and emoji shortcodes (:emoji_name:). These extensions are now widely supported.

Markdown Best Practices

Use consistent heading hierarchy (do not skip levels). Add blank lines between elements for clarity. Use reference-style links for repeated URLs. Keep lines under 80 characters when possible. Use fenced code blocks with language specification for syntax highlighting. Preview your Markdown before publishing to catch formatting issues.