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Markdown Cheat Sheet

Interactive Markdown reference with syntax examples, live preview, and one-click copy for common patterns.

Tested tool guide Tested browser tools Checked August 16, 2026

What Markdown Cheat Sheet does, with a checked example

Markdown Cheat Sheet pairs a browsable catalog of common Markdown patterns with editable examples, a rendered preview, and copy controls. Use it to recall the punctuation for headings, emphasis, links, lists, quotations, and code, then test a small snippet before copying it. The important caveat is that Markdown is a family of related dialects, not one universally identical renderer. A snippet that looks right in this preview can differ in another editor, especially for extensions beyond the portable core syntax.

Worked example

A concrete input and expected output from the current implementation.

Input

## Status

**Ready** for review.

Expected output

A level-2 heading reading "Status", followed by a paragraph reading "Ready for review." with only "Ready" shown in strong emphasis.

Two hash marks followed by a space create a level-2 ATX heading. The paired double asterisks apply strong emphasis to the enclosed word, while the blank line separates the heading from the paragraph.

How the result is produced

1

Syntax patterns

The reference groups recognizable Markdown constructs with their source examples, letting you move from the rendered result you want to the punctuation that creates it. An entry is useful when you remember that you need a link, quotation, nested list, or fenced code block but have forgotten the placement of brackets, markers, indentation, or backticks. You can copy the pattern and replace its placeholder content.

2

Preview and copy

Typing or pasting Markdown into the editable area updates the live preview, which exposes the structure produced by the delimiters and whitespace in that snippet. The copy controls provide the source form of common patterns for reuse in another editor. Because the preview is a rendering rather than a cross-platform test, it demonstrates this page's interpretation only; compatibility still depends on the destination's Markdown dialect.

Good uses

  • Confirming the exact heading, emphasis, link, quotation, list, or code syntax while editing a README or package guide.
  • Testing a short fragment with blank lines and indentation before placing it in an issue, pull request, or static documentation page.
  • Copying a known-good pattern for a link, image, inline code span, or fenced code sample instead of rebuilding its delimiters.

Limits and checks

  • The live preview reflects the syntax this cheat sheet recognizes. A repository host, note app, forum, or documentation generator using another dialect can render identical source differently.
  • Whitespace can be structural. Missing blank lines, altered indentation, or a paste operation that replaces straight quotes or backticks with smart punctuation may change the result.
  • A visually correct preview does not verify that links resolve, images load, heading order is accessible, alternative text is useful, or a publishing system allows embedded HTML.

Common questions

Will the preview match GitHub exactly?

Not necessarily. GitHub Flavored Markdown builds on CommonMark and adds defined extensions, including tables, task list items, strikethrough, and autolinks. The cheat sheet's preview can confirm what this page recognizes, but it cannot guarantee identical treatment in GitHub or any other host. When an extension matters, paste the same small sample into the actual destination before publishing.

Does the copy control give me Markdown or the rendered preview?

It is for copying the example pattern's Markdown source so you can paste and edit the syntax. The preview shows the interpreted result and is not the reusable source form. If you need generated HTML, the answer is no: do not treat this cheat sheet as an HTML export tool unless the interface explicitly presents HTML output for copying.

References and verification

The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.

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