commonmark/commonmark.js

CommonMark parser and renderer in JavaScript

Stars: 1.6k
Forks: 231
Open beginner issues: 0
Indexed issues: 42
Avg merge: 2d 11h
Merged PRs (30d): 3

Dominant language: JavaScript
License: No license data
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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42 open issues indexed

White space handling looks inconsistent between HTML block element vs HTML inline element Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

commonmark/commonmark.js#303 · 2 comments · Opened Dec 19, 2025
Setext Heading LRDs take precedence over Paragraph LRDs Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

commonmark/commonmark.js#298 · Opened Jan 21, 2025
Non-alphabetical start of the string breaks the markup in some cases Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#287 · 1 reaction · Opened Jul 11, 2024
[Example]: Extended HTML renderer Open

Difficulty 3/5 1-2 days Newbie friendliness 20/100

commonmark/commonmark.js#275 · Opened Jan 10, 2024
Delegate node walking to others Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

commonmark/commonmark.js#267 · 3 comments · Opened Dec 1, 2022
Inconsistent escape of image alt Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

commonmark/commonmark.js#264 · 1 reaction · Opened Oct 5, 2022
Definition + setext underline/thematic break, creates loose empty paragraph Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#262 · 3 comments · Opened Sep 13, 2022
How To Fork and Implement Highlighter / Hilite Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

commonmark/commonmark.js#257 · Opened May 25, 2022
`commonmark.js` should first evaluate character references, before interpreting “words” of the info string Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

commonmark/commonmark.js#255 · 1 comment · Opened Apr 26, 2022
Doesn’t read commonmark when included in unit testing Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

commonmark/commonmark.js#253 · 1 comment · Opened Apr 1, 2022
move cli support to a separate package (or the main lib) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

commonmark/commonmark.js#250 · 1 comment · 3 reactions · Opened Jan 25, 2022
Type-4 HTML block does not interrupt a paragraph Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

commonmark/commonmark.js#223 · Opened Jul 26, 2021
Incorrect emphasis handling Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

commonmark/commonmark.js#221 · 1 comment · Opened May 12, 2021
empty list item should be treated as an empty paragraph in loose list Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

commonmark/commonmark.js#220 · Opened May 2, 2021
Empty link, image, definition titles should output `title=""` on `a`, `img` Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

commonmark/commonmark.js#192 · 2 comments · Opened Jul 26, 2020
Incorrect handling of tabs in link resources compared to spaces, newlines Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

commonmark/commonmark.js#191 · 13 comments · Opened May 28, 2020
reMaybeSpecial and custom syntax Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

commonmark/commonmark.js#189 · 1 comment · Opened May 10, 2020
Source information missing from parsed nodes Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#173 · 2 comments · Opened Sep 6, 2019
Is there a way to know if the tag is standalone? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

commonmark/commonmark.js#156 · Opened Feb 4, 2019
Sourcepos not defined for inline elements Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

commonmark/commonmark.js#155 · 3 comments · 1 reaction · Opened Jan 29, 2019
Don't use javascript reserved word as Object keys Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

commonmark/commonmark.js#154 · 1 comment · Opened Jan 10, 2019
Same-document links Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

commonmark/commonmark.js#153 · Opened Nov 14, 2018
One-line rendering Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

commonmark/commonmark.js#152 · 1 reaction · Opened Nov 14, 2018
Optimize tight/loose list parsing (new algorithm from commonmark-java) Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

commonmark/commonmark.js#151 · Opened Nov 9, 2018
Windows is not supported Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#143 · 1 comment · Opened Jun 8, 2018
Add "exclude" (and/or "include") option to parser options Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#134 · 2 comments · Opened Dec 29, 2017
Leading and trailing non-`whitespace` `Unicode whitespace` is stripped from paragraphs Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

commonmark/commonmark.js#132 · Opened Dec 5, 2017
Consider a JSONRenderer Open

Difficulty 5/5 Over a week Newbie friendliness 32/100

commonmark/commonmark.js#131 · 1 comment · Opened Nov 1, 2017
Would be nice if there was an iterable interface to the NodeWalker Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

commonmark/commonmark.js#130 · 1 comment · Opened Oct 14, 2017
Pathological inputs Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#129 · Opened Sep 27, 2017
Link destination parsing accepts control characters (but should not) Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

commonmark/commonmark.js#127 · Opened Aug 24, 2017
Supporting AMP HTML Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

commonmark/commonmark.js#123 · 1 comment · Opened Aug 9, 2017
Trailing tabs after closing fence marker Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

commonmark/commonmark.js#122 · Opened Aug 3, 2017
strikethrough support? Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

commonmark/commonmark.js#120 · 2 comments · 14 reactions · Opened Jun 23, 2017
Leading and trailing spaces vanish in multi-line "link text" Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#119 · 3 comments · Opened Jun 3, 2017
Serialization API Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

commonmark/commonmark.js#95 · Opened Mar 24, 2016
API for testing the type of a node Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#92 · 7 comments · Opened Mar 15, 2016
Improve sanitization options: making it pluggable Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

commonmark/commonmark.js#84 · 3 reactions · Opened Feb 2, 2016
Feature: Commonmark compliant markdown renderer Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

commonmark/commonmark.js#83 · 22 comments · 2 reactions · Opened Jan 30, 2016
Separate parser library Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

commonmark/commonmark.js#65 · 8 comments · 1 reaction · Opened Sep 15, 2015
Putting slighlty misaligned blockquote in a list Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

commonmark/commonmark.js#62 · 5 comments · Opened Jul 22, 2015
Source maps Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

commonmark/commonmark.js#29 · 2 comments · 2 reactions · Opened Apr 24, 2015

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