Glossary — Writing & Syntax

What is Markdown?

Markdown is a lightweight markup language created by John Gruber in 2004. By adding simple symbols like # and * to plain text, you can express headings, bold, lists, links, and more. Supported by GitHub, Notion, Obsidian, and hundreds of other tools, it has become the de facto standard for notes and documentation.

Definition

Markdown is a lightweight markup language for writing formatted documents in plain text. Using intuitive symbols like "# Heading," "**bold**," and "- list item," you create structured text that converts to HTML. The standard file extension is .md, and its greatest strength is portability — anyone with a text editor can read and write it.

Basic Markdown Syntax

Markdown syntax is remarkably simple. Learning just these basics lets you write structured notes and documents quickly.

Headings (# Heading)
Use # count for hierarchy. # = h1, ## = h2, ### = h3. Instantly see the structure of your notes.
Emphasis (**bold** / *italic*)
Wrap with ** for bold, * for italic. Visually emphasize key terms in your notes.
Lists (- / 1.)
Use - for bullet lists, 1. for numbered lists. Task lists use - [ ] for incomplete, - [x] for done.
Links & Images
[text](URL) for links, ![alt](imageURL) for images. Embed reference URLs directly in your notes.

Simple Memo and Markdown Workflow

Simple Memo sends plain text via email, so Markdown-formatted notes arrive exactly as written. Paste into Obsidian or Notion, and the Markdown renders as rich text automatically. "Capture with Simple Memo, organize in a Markdown editor" is the most efficient note-taking workflow.

Popular Tools That Support Markdown

Obsidian
Local-file PKM tool. Visualize Markdown files in graph view. Build knowledge networks with backlinks.
Notion
Block-based all-in-one workspace. Paste Markdown and it instantly converts to rich text. Great for team sharing.
GitHub
README.md, Issues, Pull Requests — all Markdown-native. The documentation standard for developers.

FAQ: Markdown

What is Markdown?

A lightweight markup language by John Gruber (2004). Add symbols like # and * to plain text to express headings, bold, lists, and more. Converts to HTML and is supported by hundreds of tools.

Can I use Markdown with Simple Memo?

Yes. Simple Memo sends plain text, so you can write in Markdown notation. Copy the received email into Obsidian or Notion and the formatting renders automatically.

Why is Markdown popular for note-taking?

Markdown keeps notes portable (plain text works anywhere), readable without rendering, and easy to convert to HTML/PDF. No vendor lock-in, and it works across hundreds of apps.

References

Capture Markdown Notes at Lightning Speed
Launch in 0.4s, send Markdown-formatted memos to your email instantly. Easy integration with Obsidian and Notion.
Download on the App Store

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