Extracts YAML front matter from markdown files to a single JSON string or file.
Last updated 3 years ago by barraponto .
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$ cnpm install @barraponto/markdown-to-json 
SYNC missed versions from official npm registry.


Tool for converting YAML Front Matter in Markdown files to JSON files.

m2j is used to read a folder of Markdown files, pulling out the YAML Front Matter from each, and saving it all as a JSON blob.

This is especially useful if you have a folder full of Markdown files that you want scanned and processed into a single JSON file, which can then be consumed by Angular on the client, cached in a Node server, or saved in a NoSQL database.

In addition to moving the YAML to JSON, a few extra elements are created:

  • iso8601 formatted timestamp from date using Moment.js
  • preview is the first 70 or so characters of the actual raw Markdown content, with ellipses at the end
  • basename is the filename without the path or extension
  • content is created only if the content flag is enabled; raw Markdown content will be unabridged


% m2j --help

  Usage: m2j [options] <files>


    -h, --help               output usage information
    -V, --version            output the version number
    -w --width <int>         max width of preview text [70]. Set to 0 for no preview.
    -p --pretty              format JSON with newlines
    -c --content             include the full content of the file unabridged
    -o --outfile <filename>  filename to save json to [output.json]

% m2j.js lottery.md


title: The Lottery Ticket
author: Anton C.
date: "2013-03-15 15:00"
template: article.jade
  - Fiction
  - Russian


Ivan Dmitritch, a middle-class man who lived with his family on an income of twelve hundred a year and was very well satisfied with his lot, sat down on the sofa after supper and began reading the newspaper. 


  "files": [
      "title": "The Lottery Ticket",
      "author": "Anton C.",
      "date": "1893-04-01",
      "template": "article.jade",
      "tags": [
      "preview": "Ivan Dmitritch, a middle-class man who lived with his family on an …",
      "iso8601Date": "1893-04-01T00:00:00-07:00",
      "basename": "lottery.md"

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