Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Markdown

Markdown is a lightweight markup language for creating formatted text using a plain-text editor. John Gruber created Markdown in 2004 as an easy-to-read markup language. Markdown is widely used for blogging, instant messaging, and large language models, and also used elsewhere in online forums, collaborative software, documentation pages, and readme files.

History & Products

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Markdown. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developed by
John Gruber
Extended to
pandoc, MultiMarkdown, Markdown Extra, CommonMark, RMarkdown
Filename extensions
.md, .markdown
Initial release
March 9, 2004 (22 years ago) (2004-03-09)
Internet media type
text/markdown
Latest release
1.0.1 December 17, 2004 (21 years ago) (2004-12-17)

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

History

Rise and divergence

CommonMark

Variants

Implementations

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Markdown

Nodes86
Edges85
Triples75
Avg. degree1.98
Density0.023256
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Markdown

Top relations

related to Variants · 11
Markdown → Bitbucket, Depending, Diaspora, Discord, GitHub, HTML, OpenStreetMap, Reddit, SourceForge, Stack Exchange, Websites
related to history · 8
Markdown → Aaron Swartz, Gruber, HTML, In, Swartz, Textile, The, XHTML
related to GitHub Flavored Markdown · 7
Markdown → CommonMark, GFM, GitHub, GitHub Flavored Markdown, GitHub-specific, In, It
related to Markdown Extra · 7
Markdown → Fenced, HTML, It, Markdown Extra, PHP, Python, Ruby
related to Implementations · 6
Markdown → Editors, For, Implementations, Many, While Markdown, WYSIWYG
related to CommonMark · 4
Markdown → Atwood, In, Jeff Atwood, John MacFarlane
related to Rise and divergence · 4
Markdown → As Markdown's, HTML, Perl, The
is a · 2
Markdown → lightweight markup language for creating formatted text using a plain-text editor, minimal markup language and is read and edited with a normal text editor
Developed by · 1
Markdown → John Gruber
Extended to · 1
Markdown → pandoc, MultiMarkdown, Markdown Extra, CommonMark, RMarkdown

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

text commonmark language markup gruber github implementations html specification extra john tables available using also format languages many gfm editors

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
MarkdownDeveloped byJohn Gruber1.00infobox
MarkdownExtended topandoc, MultiMarkdown, Markdown Extra, CommonMark, RMarkdown1.00infobox
MarkdownFilename extensions.md, .markdown1.00infobox
MarkdownInitial releaseMarch 9, 2004 (22 years ago) (2004-03-09)1.00infobox
MarkdownInternet media typetext/markdown1.00infobox
MarkdownLatest release1.0.1 December 17, 2004 (21 years ago) (2004-12-17)1.00infobox
MarkdownMagic numberNone1.00infobox
MarkdownType of formatOpen file format1.00infobox
MarkdownUniform Type Identifier (UTI)net.daringfireball.markdown1.00infobox
MarkdownUTI conformationpublic.plain-text1.00infobox
MarkdownWebsitedaringfireball.net/projects/markdown/1.00infobox
Markdownis alightweight markup language for creating formatted text using a plain-text editor0.90text
Markdownis aminimal markup language and is read and edited with a normal text editor0.90text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.