Run results for: My Markdown Performance Comparison

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0

Browser: Firefox 89

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Showdown.js	2398.7 Ops/sec
Marked	11489.6 Ops/sec
CommonMark	7149.2 Ops/sec
Markdown-it	8360.8 Ops/sec
Remarkable	15868.7 Ops/sec
Micromarkdown	20596.8 Ops/sec
Snarkdown	16108.4 Ops/sec
reMarked.js	26021.9 Ops/sec
markdown-js	4600.6 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="https://unpkg.com/showdown@1.9.1/dist/showdown.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/marked@1.1.0/marked.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/commonmark@0.29.1/dist/commonmark.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/markdown-it@11.0.0/dist/markdown-it.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/remarkable@2.0.1/dist/remarkable.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/micromarkdown@0.3.0/dist/micromarkdown.min.js"></script>
<script type="text/javascript" src="https://unpkg.com/snarkdown@1.2.2/dist/snarkdown.umd.js"></script>
<script type="text/javascript" src="https://leeoniya.github.io/reMarked.js/reMarked.js"></script>
<script type="text/javascript" src="https://lukeuser.cacus.feralhosting.com/markdown.min.js"></script>

Script Preparation code:

var conv = {
  showdown: new showdown.Converter(),
  marked: marked,
  cm: new commonmark.HtmlRenderer(),
  mdit: markdownit({ html: true }),
  remarkable: new remarkable.Remarkable(),
  micromarkdown: window.micromarkdown,
  snarkdown: window.snarkdown,
  remarker: new reMarked(),
  markdown: window.markdown
};

var pars = {
  cm: new commonmark.Parser()
};

var md = ["# The Static, Static Blog Generator\n\n### May 17th, 2014\n\nWe all like *publishing* our thoughts online - but why is it such a bother to run a CMS?\n\nManaging databases, `updating` software, and keeping track of our *content* often cuts into the most important activity: *expressing ourselves*.\n\nThe web makes it really __easy to share__ our thoughts with millions of individuals from around the world. With it we are *able to talk* about the things we love.\n\nOnline publishing platform have a problem though - they [require](https://1993.uk) certain software to be installed on web servers in order to work. This often means running your own server or paying someone else who will setup the [required](https://1993.uk) parts for you.\n\nAfter you setup the system, constant updates are required to make sure that any bugs in the software you are running are patched [immediately](https://1993.uk) to prevent your *site* from being hacked. This __often means__ having a recent backup of your data",
          ""].join("\n");

Tests:

Showdown.js
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);
Micromarkdown
conv.micromarkdown.parse(md);
Snarkdown
conv.snarkdown(md);
reMarked.js
conv.remarker.render(md);
markdown-js
conv.markdown.toHTML(md);

Run results for: My Markdown Performance Comparison

A performance comparison of leading Javascript Markdown implementations.

Showdown.js

Marked

CommonMark

Markdown-it

Remarkable

Micromarkdown

Snarkdown

reMarked.js

markdown-js