Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed https://markdown-it.github.io/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
Vitaly Puzrin 69828d8429 browser files rebuild 10 years ago
benchmark Added markdown-it 2.2.1 benchmark 10 years ago
bin Fixed options in cli script 10 years ago
dist browser files rebuild 10 years ago
docs docs update 10 years ago
lib Improved preset name error reporting 10 years ago
support Demo update for new api 10 years ago
test Added to top enable/disable methods & errors throw 10 years ago
.editorconfig Fix .editorconfig 10 years ago
.eslintignore Refactored demo 10 years ago
.eslintrc eslint rules & coding style update 10 years ago
.gitignore Added main class api doc 10 years ago
.ndocrc apidocs: updates + added Ruler docs 10 years ago
.npmignore Added main class api doc 10 years ago
.travis.yml Added coverall.io integration 10 years ago
CHANGELOG.md changelog & apidoc update 10 years ago
CONTRIBUTING.md Changed project name, links, attribution & updated constructor call 10 years ago
LICENSE Changed project name, links, attribution & updated constructor call 10 years ago
Makefile Fixed sub-sup tokens format. Closes #21 10 years ago
README.md docs update 10 years ago
bower.json Added main class api doc 10 years ago
index.js Renamed main class & file 10 years ago
package.json 2.2.1 released 10 years ago

README.md

markdown-it

Build Status NPM version Coverage Status Gitter

Markdown parser done right. Fast and easy to extend.

Live demo

  • Supports the CommonMark spec + syntax extensions + sugar (URL autolinking, typographer).
  • Configurable syntax! You can add new rules and even replace existing ones.
  • High speed!
  • Community-written plugins and other packages on npm.

Table of content

Install

node.js & bower:

npm install markdown-it --save
bower install markdown-it --save

browser (CDN):

Usage examples

See also:

Simple

// node.js, "classic" way:
var MarkdownIt = require('markdown-it'),
    md = new MarkdownIt();
var result = md.render('# markdown-it rulezz!');

// node.js, the same, but with sugar:
var md = require('markdown-it')();
var result = md.render('# markdown-it rulezz!');

// browser without AMD, added to "window" on script load
// Note, there are no dash.
var md = window.markdownit();
var result = md.render('# markdown-it rulezz!');

Single line rendering, without paragraph wrap:

var md = require('markdown-it')();
var result = md.renderInline('__markdown-it__ rulezz!');

Init with presets and options

(*) preset define combination of active rules and options. Can be "commonmark", "zero" or "default" (if skipped). See API docs for more details.

// commonmark mode
var md = require('markdown-it')('commonmark');

// default mode
var md = require('markdown-it')();

// enable everything
var md = require('markdown-it')({
  html: true,
  linkify: true,
  typographer: true
});

// full options list (defaults)
var md = require('markdown-it')({
  html:         false,        // Enable HTML tags in source
  xhtmlOut:     false,        // Use '/' to close single tags (<br />).
                              // This is only for full CommonMark compatibility.
  breaks:       false,        // Convert '\n' in paragraphs into <br>
  langPrefix:   'language-',  // CSS language prefix for fenced blocks. Can be
                              // useful for external highlighters.
  linkify:      false,        // Autoconvert URL-like text to links

  // Enable some language-neutral replacement + quotes beautification
  typographer:  false,

  // Double + single quotes replacement pairs, when typographer enabled,
  // and smartquotes on. Set doubles to '«»' for Russian, '„“' for German.
  quotes: '“”‘’',

  // Highlighter function. Should return escaped HTML,
  // or '' if the source string is not changed and should be escaped externaly.
  highlight: function (/*str, lang*/) { return ''; }
});

Plugins load

var md = require('markdown-it')()
            .use(plugin1)
            .use(plugin2, opts, ...)
            .use(plugin3);

Syntax highlighting

Apply syntax highlighting to fenced code blocks with the highlight option:

var hljs = require('highlight.js') // https://highlightjs.org/

// Actual default values
var md = require('markdown-it')({
  highlight: function (str, lang) {
    if (lang && hljs.getLanguage(lang)) {
      try {
        return hljs.highlight(lang, str).value;
      } catch (__) {}
    }

    try {
      return hljs.highlightAuto(str).value;
    } catch (__) {}

    return ''; // use external default escaping
  }
});

API

API documentation

If you are going to write plugins - take a look at Development info.

Syntax extensions

Embedded (enabled by default):

Via plugins::

Manage rules

By default all rules are enebled, but can be restricted by options. On plugin load all it's rules are enabled automatically.

// Activate/deactivate rules, with curring
var md = require('markdown-it')()
            .disable([ 'link', 'image' ])
            .enable([ 'link' ])
            .enable('image');

// Enable everything
md = require('markdown-it')('full', {
  html: true,
  linkify: true,
  typographer: true,
});

Benchmark

Here is result of CommonMark spec parse at Core i5 2.4 GHz (i5-4258U):

$ benchmark/benchmark.js spec
Selected samples: (1 of 27)
 > spec

Sample: spec.txt (110610 bytes)
 > commonmark-reference x 40.42 ops/sec ±4.07% (51 runs sampled)
 > current x 74.99 ops/sec ±4.69% (67 runs sampled)
 > current-commonmark x 93.76 ops/sec ±1.23% (79 runs sampled)
 > marked-0.3.2 x 22.92 ops/sec ±0.79% (41 runs sampled)

As you can see, markdown-it doesn't pay with speed for it's flexibility. Because it's written in monomorphyc style and uses JIT inline caches effectively.

Authors

markdown-it is the result of the decision of the authors who contributed to 99% of the Remarkable code to move to a project with the same authorship but new leadership (Vitaly and Alex). It's not a fork.

References / Thanks

Big thanks to John MacFarlane for his work on the CommonMark spec and reference implementations. His work saved us a lot of time during this project's development.

Related Links:

License

MIT