markup VS commonmark-spec

Compare markup vs commonmark-spec and see what are their differences.

markup

Determines which markup library to use to render a content file (e.g. README) on GitHub (by github)

commonmark-spec

CommonMark spec, with reference implementations in C and JavaScript (by commonmark)
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markup commonmark-spec
9 48
5,781 4,835
0.2% 0.2%
1.8 6.9
29 days ago 3 months ago
Ruby Python
MIT License GNU General Public License v3.0 or later
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

markup

Posts with mentions or reviews of markup. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-05-17.
  • Give your brain time to think and remember
    7 projects | news.ycombinator.com | 17 May 2023
    Btw github supports more than just markdown: https://github.com/github/markup#markups
  • Documentation generators and custom syntax highlighting
    5 projects | /r/ProgrammingLanguages | 5 May 2023
    I'm not sure 4. works for colors/styling, style attributes are stripped: https://github.com/github/markup/issues/119
  • Do you think we will see color text in GFM?
    1 project | /r/github | 15 Feb 2023
  • Hiding front matter block in github markdown
    1 project | /r/github | 9 Nov 2022
    I found this issue, which does not show much traction: https://github.com/github/markup/issues/994
  • Hi DM's, what medium do you use to organise your campaign?
    3 projects | /r/DnD | 11 Oct 2022
    For sharing settings and lore with players, GitHub wiki. Understands Org and several other formats thanks to GitHub Markup, so I can copy in (and trim down) my original notes without much fuss.
  • raw-markdown and rendered markdown
    2 projects | /r/Markdown | 20 Jun 2022
  • Include diagrams in your Markdown files with Mermaid
    22 projects | news.ycombinator.com | 14 Feb 2022
    Re: https://github.com/github/markup/issues/533

    I’m the main author of KeenWrite (see screenshots), a type of desktop Markdown editor that supports diagrams. It’s encouraging to see that Mermaid diagrams are being supported in GitHub. There are a few drawbacks on the syntax and implications of using MermaidJS.

    First, only browser-based SVG renderers can correctly parse Mermaid diagrams. I’ve tested Apache Batik, svgSalamander, resvg, rsvg-convert, svglib, CairoSVG, ConTeXt, and QtSVG. See issue 2485. This implies that typesetting Mermaid diagrams is not currently possible. In effect, by including Mermaid diagrams, many documents will be restricted to web-based output, excluding the possibility of producing PDF documents based on GitHub markdown documents (for the foreseeable future).

    Second, there are numerous text-to-diagram facilities available beyond Mermaid. The server at https://kroki.io/ supports Mermaid, PlantUML, Graphviz, byte fields, and many more. While including MermaidJS is a great step forward, supporting Kroki diagrams would allow a much greater variety. (Most diagrams produced in MermaidJS can also be crafted in Graphviz, albeit with less terse syntax.)

    Third, see the CommonMark discussion thread referring to a syntax for diagrams. It’s unfortunate that a standard “namespace” concept was not proposed.

    Fourth, KeenWrite integrates Kroki. To do so, it uses a variation on the syntax:

        ``` diagram-mermaid
  • Footnotes now supported in GitHub Markdown
    6 projects | news.ycombinator.com | 30 Sep 2021
    I thought it only rendered files in the repo (match by extension). Does GH also allow asciidoc(tor) syntax in comments and issues?

    * Note: Sadly, include is not supported on GH. https://github.com/github/markup/issues/1095

  • Compare AsciiDoc and Markdown
    6 projects | news.ycombinator.com | 5 Jul 2021

commonmark-spec

Posts with mentions or reviews of commonmark-spec. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-06.
  • How to add a man page to your Ruby project, using kramdown-man and markdown
    2 projects | /r/ruby | 6 Dec 2023
    Edit: this is because GitHub uses cmark-gfm, which is a fork of cmark, which implements the CommonMark variant of markdown. Looks like CommonMark still doesn't support definition lists. :(
  • How do you host documentation for your spouse or other users?
    4 projects | /r/selfhosted | 6 Dec 2023
    BookStack dev here. There's no specific "import" option but you can use the Markdown editor in BookStack and paste in your Markdown content there. The API is essentially just an endpoint to accept the same kind of data, for of course you could automate against the API for batch import. One thing to keep in mind is that BookStack markdown support is fairly tightly scoped to (commonmark + tables + tasklists), although HTML within MD is supported.
  • On why Markdown is not a good, or even a half-decent, markup language
    9 projects | news.ycombinator.com | 19 Jul 2023
    >A single canonical reference

    https://commonmark.org/

  • Get ready for Bear 2 - We have a quick blog post with some important details and ways you can get notified once it's out!
    1 project | /r/bearapp | 6 Jul 2023
    Typically with major new releases of software, when the number left of the dot (e.g. 2.0) increases, it’s shipped as a separate product. Not always, but generally. The Bear folks can speak for themselves but IIRC a lot of the code was refactored / rewritten to support, for example, CommonMark. So, under the hood, it’s literally brand new in some respects.
  • Best website to write a rulebook for ttrpgs
    3 projects | /r/rpg | 17 May 2023
    I use Obsidian (https://obsidian.md) for a lot of things, including my RPG stuff, and there are options for exporting things as PDFs. It’s great for getting organized and doing research, but I would use other tools for long-form writing and layout. What I like about Obsidian though is that everything is done in Markdown (https://commonmark.org) and I can use Pandoc (https://pandoc.org) to transform the source to whatever I need. The caveat is that Obsidian uses a flavor of Markdown with some non-standard extensions, so a pure Markdown editor like Typora (https://typora.io) might be a better choice depending on your needs.
  • What is the most minimal, strictest variant of Markdown?
    1 project | /r/Markdown | 18 Apr 2023
  • How to display an image
    1 project | /r/gohugo | 11 Apr 2023
    yes, this is the "inventor" of markdown and those rules will always work. Hugo uses something called "Commonmark" which is developed on top of the original markdown. But the original rules will always work too.
  • Lightweight Markup for Ukrainian Texts?
    1 project | /r/Ukrainian | 10 Apr 2023
    Reddit and many other sites support Markdown as an easy way to add emphasis, links, headings, etc. Markdown does not contain any keywords, as it is intended to be language-independent. However, Markdown syntax makes heavy use of square brackets [] and other characters that are difficult to type with an Ukrainian keyboard layout, e.g., the backtick `.
  • I wish Asciidoc was more popular
    4 projects | /r/programming | 6 Feb 2023
    Check out commonmark, that is the Markdown standard supported by numerous converters including pandoc.
  • I wrote a markdown to html converter
    6 projects | /r/golang | 1 Feb 2023
    And if this is an exercise into that you can use a Markdown spec like CommonMark which is the spec Reddit and a variety of other sites use.

What are some alternatives?

When comparing markup and commonmark-spec you can also consider the following projects:

org-mode - This is a MIRROR only, do not send PR.

pandoc - Universal markup converter

gitlab-foss

kramdown - kramdown is a fast, pure Ruby Markdown superset converter, using a strict syntax definition and supporting several common extensions.

libasciidoc - A Golang library for processing Asciidoc files.

marktext - 📝A simple and elegant markdown editor, available for Linux, macOS and Windows.

aasvg - Turn ASCII art into SVG

markdown-it-katex - Add Math to your Markdown with a KaTeX plugin for Markdown-it

cmark-gfm - GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C

Joplin - Joplin - the secure note taking and to-do app with synchronisation capabilities for Windows, macOS, Linux, Android and iOS.

rehype-sanitize - plugin to sanitize HTML