Benchmark: Markdown Performance Comparison 2024-10-23

HTML Preparation code:

<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
<script type="module">import SimpleMarkdown from 'https://esm.sh/@khanacademy/simple-markdown';window.SimpleMarkdown = SimpleMarkdown</script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/markdown-it/dist/markdown-it.min.js"></script>
<script type="module">import {remark} from 'https://esm.sh/remark?bundle';window.remark = remark</script>
<script type="text/javascript" src="https://unpkg.com/commonmark/dist/commonmark.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/showdown/dist/showdown.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/remarkable/dist/remarkable.min.js"></script>
<script type="module">import {micromark} from 'https://esm.sh/micromark?bundle';window.micromark = micromark</script>
<script type="text/javascript" src="https://unpkg.com/snarkdown/dist/snarkdown.umd.js"></script>

Script Preparation code:

var conv = {
  marked: marked.use({ gfm: true }).parse,
  simpleMarkdown: (md) => SimpleMarkdown.defaultOutput(SimpleMarkdown.defaultBlockParse(md)),
  mdit: markdownit({ html: true }),
  remark: (md) => window.remark().process(md),
  cm: new commonmark.HtmlRenderer(),
  showdown: new showdown.Converter(),
  remarkable: new remarkable.Remarkable('full'),
  micromark: window.micromark,
  snarkdown: snarkdown
};

var pars = {
  cm: new commonmark.Parser()
};

var md = [
"---",
"__Advertisement :)__",
"",
"- __[pica](https://nodeca.github.io/pica/demo/)__ - high quality and fast image",
"  resize in browser.",
"- __[babelfish](https://github.com/nodeca/babelfish/)__ - developer friendly",
"  i18n with plurals support and easy syntax.",
"",
"You will like those projects!",
"",
"---",
"",
"# h1 Heading 8-)",
"## h2 Heading",
"### h3 Heading",
"#### h4 Heading",
"##### h5 Heading",
"###### h6 Heading",
"",
"",
"## Horizontal Rules",
"",
"___",
"",
"---",
"",
"***",
"",
"",
"## Typographic replacements",
"",
"Enable typographer option to see result.",
"",
"(c) (C) (r) (R) (tm) (TM) (p) (P) +-",
"",
"test.. test... test..... test?..... test!....",
"",
"!!!!!! ???? ,,  -- ---",
"",
"\"Smartypants, double quotes\" and 'single quotes'",
"",
"",
"## Emphasis",
"",
"**This is bold text**",
"",
"__This is bold text__",
"",
"*This is italic text*",
"",
"_This is italic text_",
"",
"~~Strikethrough~~",
"",
"",
"## Blockquotes",
"",
"",
"> Blockquotes can also be nested...",
">> ...by using additional greater-than signs right next to each other...",
"> > > ...or with spaces between arrows.",
"",
"",
"## Lists",
"",
"Unordered",
"",
"+ Create a list by starting a line with `+`, `-`, or `*`",
"+ Sub-lists are made by indenting 2 spaces:",
"  - Marker character change forces new list start:",
"    * Ac tristique libero volutpat at",
"    + Facilisis in pretium nisl aliquet",
"    - Nulla volutpat aliquam velit",
"+ Very easy!",
"",
"Ordered",
"",
"1. Lorem ipsum dolor sit amet",
"2. Consectetur adipiscing elit",
"3. Integer molestie lorem at massa",
"",
"",
"1. You can use sequential numbers...",
"1. ...or keep all the numbers as `1.`",
"",
"Start numbering with offset:",
"",
"57. foo",
"1. bar",
"",
"",
"## Code",
"",
"Inline `code`",
"",
"Indented code",
"",
"    // Some comments",
"    line 1 of code",
"    line 2 of code",
"    line 3 of code",
"",
"",
"Block code \"fences\"",
"",
"```",
"Sample text here...",
"```",
"",
"Syntax highlighting",
"",
"``` js",
"var foo = function (bar) {",
"  return bar++;",
"};",
"",
"console.log(foo(5));",
"```",
"",
"## Tables",
"",
"| Option | Description |",
"| ------ | ----------- |",
"| data   | path to data files to supply the data that will be passed into templates. |",
"| engine | engine to be used for processing templates. Handlebars is the default. |",
"| ext    | extension to be used for dest files. |",
"",
"Right aligned columns",
"",
"| Option | Description |",
"| ------:| -----------:|",
"| data   | path to data files to supply the data that will be passed into templates. |",
"| engine | engine to be used for processing templates. Handlebars is the default. |",
"| ext    | extension to be used for dest files. |",
"",
"",
"## Links",
"",
"[link text](http://dev.nodeca.com)",
"",
"[link with title](http://nodeca.github.io/pica/demo/ \"title text!\")",
"",
"Autoconverted link https://github.com/nodeca/pica (enable linkify to see)",
"",
"",
"## Images",
"",
"![Minion](https://octodex.github.com/images/minion.png)",
"![Stormtroopocat](https://octodex.github.com/images/stormtroopocat.jpg \"The Stormtroopocat\")",
"",
"Like links, Images also have a footnote style syntax",
"",
"![Alt text][id]",
"",
"With a reference later in the document defining the URL location:",
"",
"[id]: https://octodex.github.com/images/dojocat.jpg  \"The Dojocat\"",
"",
"",
"## Plugins",
"",
"The killer feature of `markdown-it` is very effective support of",
"[syntax plugins](https://www.npmjs.org/browse/keyword/markdown-it-plugin).",
"",
"",
"### [Emojies](https://github.com/markdown-it/markdown-it-emoji)",
"",
"> Classic markup: :wink: :crush: :cry: :tear: :laughing: :yum:",
">",
"> Shortcuts (emoticons): :-) :-( 8-) ;)",
"",
"see [how to change output](https://github.com/markdown-it/markdown-it-emoji#change-output) with twemoji.",
"",
"",
"### [Subscipt](https://github.com/markdown-it/markdown-it-sub) / [Superscirpt](https://github.com/markdown-it/markdown-it-sup)",
"",
"- 19^th^",
"- H~2~O",
"",
"",
"### [\<ins>](https://github.com/markdown-it/markdown-it-ins)",
"",
"++Inserted text++",
"",
"",
"### [\<mark>](https://github.com/markdown-it/markdown-it-mark)",
"",
"==Marked text==",
"",
"",
"### [Footnotes](https://github.com/markdown-it/markdown-it-footnote)",
"",
"Footnote 1 link[^first].",
"",
"Footnote 2 link[^second].",
"",
"Inline footnote^[Text of inline footnote] definition.",
"",
"Duplicated footnote reference[^second].",
"",
"[^first]: Footnote **can have markup**",
"",
"    and multiple paragraphs.",
"",
"[^second]: Footnote text.",
"",
"",
"### [Definition lists](https://github.com/markdown-it/markdown-it-deflist)",
"",
"Term 1",
"",
":   Definition 1",
"with lazy continuation.",
"",
"Term 2 with *inline markup*",
"",
":   Definition 2",
"",
"        { some code, part of Definition 2 }",
"",
"    Third paragraph of definition 2.",
"",
"_Compact style:_",
"",
"Term 1",
"  ~ Definition 1",
"",
"Term 2",
"  ~ Definition 2a",
"  ~ Definition 2b",
"",
"",
"### [Abbreviations](https://github.com/markdown-it/markdown-it-abbr)",
"",
"This is HTML abbreviation example.",
"",
"It converts \"HTML\", but keep intact partial entries like \"xxxHTMLyyy\" and so on.",
"",
"*[HTML]: Hyper Text Markup Language",
"---",
"__Advertisement :)__",
"",
"- __[pica](https://nodeca.github.io/pica/demo/)__ - high quality and fast image",
"  resize in browser.",
"- __[babelfish](https://github.com/nodeca/babelfish/)__ - developer friendly",
"  i18n with plurals support and easy syntax.",
"",
"You will like those projects!",
"",
"---",
"",
"# h1 Heading 8-)",
"## h2 Heading",
"### h3 Heading",
"#### h4 Heading",
"##### h5 Heading",
"###### h6 Heading",
"",
"",
"## Horizontal Rules",
"",
"___",
"",
"---",
"",
"***",
"",
"",
"## Typographic replacements",
"",
"Enable typographer option to see result.",
"",
"(c) (C) (r) (R) (tm) (TM) (p) (P) +-",
"",
"test.. test... test..... test?..... test!....",
"",
"!!!!!! ???? ,,  -- ---",
"",
"\"Smartypants, double quotes\" and 'single quotes'",
"",
"",
"## Emphasis",
"",
"**This is bold text**",
"",
"__This is bold text__",
"",
"*This is italic text*",
"",
"_This is italic text_",
"",
"~~Strikethrough~~",
"",
"",
"## Blockquotes",
"",
"",
"> Blockquotes can also be nested...",
">> ...by using additional greater-than signs right next to each other...",
"> > > ...or with spaces between arrows.",
"",
"",
"## Lists",
"",
"Unordered",
"",
"+ Create a list by starting a line with `+`, `-`, or `*`",
"+ Sub-lists are made by indenting 2 spaces:",
"  - Marker character change forces new list start:",
"    * Ac tristique libero volutpat at",
"    + Facilisis in pretium nisl aliquet",
"    - Nulla volutpat aliquam velit",
"+ Very easy!",
"",
"Ordered",
"",
"1. Lorem ipsum dolor sit amet",
"2. Consectetur adipiscing elit",
"3. Integer molestie lorem at massa",
"",
"",
"1. You can use sequential numbers...",
"1. ...or keep all the numbers as `1.`",
"",
"Start numbering with offset:",
"",
"57. foo",
"1. bar",
"",
"",
"## Code",
"",
"Inline `code`",
"",
"Indented code",
"",
"    // Some comments",
"    line 1 of code",
"    line 2 of code",
"    line 3 of code",
"",
"",
"Block code \"fences\"",
"",
"```",
"Sample text here...",
"```",
"",
"Syntax highlighting",
"",
"``` js",
"var foo = function (bar) {",
"  return bar++;",
"};",
"",
"console.log(foo(5));",
"```",
"",
"## Tables",
"",
"| Option | Description |",
"| ------ | ----------- |",
"| data   | path to data files to supply the data that will be passed into templates. |",
"| engine | engine to be used for processing templates. Handlebars is the default. |",
"| ext    | extension to be used for dest files. |",
"",
"Right aligned columns",
"",
"| Option | Description |",
"| ------:| -----------:|",
"| data   | path to data files to supply the data that will be passed into templates. |",
"| engine | engine to be used for processing templates. Handlebars is the default. |",
"| ext    | extension to be used for dest files. |",
"",
"",
"## Links",
"",
"[link text](http://dev.nodeca.com)",
"",
"[link with title](http://nodeca.github.io/pica/demo/ \"title text!\")",
"",
"Autoconverted link https://github.com/nodeca/pica (enable linkify to see)",
"",
"",
"## Images",
"",
"![Minion](https://octodex.github.com/images/minion.png)",
"![Stormtroopocat](https://octodex.github.com/images/stormtroopocat.jpg \"The Stormtroopocat\")",
"",
"Like links, Images also have a footnote style syntax",
"",
"![Alt text][id]",
"",
"With a reference later in the document defining the URL location:",
"",
"[id]: https://octodex.github.com/images/dojocat.jpg  \"The Dojocat\"",
"",
"",
"## Plugins",
"",
"The killer feature of `markdown-it` is very effective support of",
"[syntax plugins](https://www.npmjs.org/browse/keyword/markdown-it-plugin).",
"",
"",
"### [Emojies](https://github.com/markdown-it/markdown-it-emoji)",
"",
"> Classic markup: :wink: :crush: :cry: :tear: :laughing: :yum:",
">",
"> Shortcuts (emoticons): :-) :-( 8-) ;)",
"",
"see [how to change output](https://github.com/markdown-it/markdown-it-emoji#change-output) with twemoji.",
"",
"",
"### [Subscipt](https://github.com/markdown-it/markdown-it-sub) / [Superscirpt](https://github.com/markdown-it/markdown-it-sup)",
"",
"- 19^th^",
"- H~2~O",
"",
"",
"### [\<ins>](https://github.com/markdown-it/markdown-it-ins)",
"",
"++Inserted text++",
"",
"",
"### [\<mark>](https://github.com/markdown-it/markdown-it-mark)",
"",
"==Marked text==",
"",
"",
"### [Footnotes](https://github.com/markdown-it/markdown-it-footnote)",
"",
"Footnote 1 link[^first].",
"",
"Footnote 2 link[^second].",
"",
"Inline footnote^[Text of inline footnote] definition.",
"",
"Duplicated footnote reference[^second].",
"",
"[^first]: Footnote **can have markup**",
"",
"    and multiple paragraphs.",
"",
"[^second]: Footnote text.",
"",
"",
"### [Definition lists](https://github.com/markdown-it/markdown-it-deflist)",
"",
"Term 1",
"",
":   Definition 1",
"with lazy continuation.",
"",
"Term 2 with *inline markup*",
"",
":   Definition 2",
"",
"        { some code, part of Definition 2 }",
"",
"    Third paragraph of definition 2.",
"",
"_Compact style:_",
"",
"Term 1",
"  ~ Definition 1",
"",
"Term 2",
"  ~ Definition 2a",
"  ~ Definition 2b",
"",
"",
"### [Abbreviations](https://github.com/markdown-it/markdown-it-abbr)",
"",
"This is HTML abbreviation example.",
"",
"It converts \"HTML\", but keep intact partial entries like \"xxxHTMLyyy\" and so on.",
"",
"*[HTML]: Hyper Text Markup Language"].join("\n");

Tests:

Showdown
conv.showdown.makeHtml(md);
Marked
conv.marked(md);
CommonMark
conv.cm.render(pars.cm.parse(md));
markdown-it
conv.mdit.render(md);
remarkable
conv.remarkable.render(md);
micromark
conv.micromark(md);
Snarkdown
conv.snarkdown(md);
remark
conv.remark(md)
simple-markdown
conv.simpleMarkdown(md)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Showdown
Marked
CommonMark
markdown-it
remarkable
micromark
Snarkdown
remark
simple-markdown

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 16 days ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 147 on Android

View result in a separate tab

Test name	Executions per second
Showdown	46.9 Ops/sec
Marked	129.0 Ops/sec
CommonMark	254.1 Ops/sec
markdown-it	203.3 Ops/sec
remarkable	270.7 Ops/sec
micromark	15.3 Ops/sec
Snarkdown	458.7 Ops/sec
remark	10.6 Ops/sec
simple-markdown	71.0 Ops/sec

Related benchmarks:

Markdown Performance Comparison 2024-10-23 (version: 1)

A performance comparison of leading JavaScript Markdown implementations.

Comparing performance of: Showdown vs Marked vs CommonMark vs markdown-it vs remarkable vs micromark vs Snarkdown vs remark vs simple-markdown

Created: one year ago by: Registered User

Jump to the latest result

Showdown

Marked

CommonMark

markdown-it

remarkable

micromark

Snarkdown

remark

simple-markdown

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A