DavidAnson/markdownlint

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A Node.js style checker and lint tool for Markdown/CommonMark files.

Stars: 6.4k
Forks: 947
Open beginner issues: 0
Indexed issues: 82
Avg merge: 2h 47m
Merged PRs (30d): 35

Dominant language: JavaScript
License: MIT
Last GitHub push: Jul 28, 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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82 open issues indexed

MD060 autofix destroys a valid table when the delimiter row has no leading pipe Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 74/100

DavidAnson/markdownlint#2269 · 1 comment · Opened Sep 17, 2026
MD046: Support content tabs Open

question

Difficulty 3/5 1-2 days Newbie friendliness 64/100

DavidAnson/markdownlint#2268 · 1 comment · Opened Sep 16, 2026
MD051: Add option to deal with special character link fragment variations Open

question

Difficulty 3/5 1-2 days Newbie friendliness 67/100

DavidAnson/markdownlint#2267 · 1 comment · Opened Sep 16, 2026
Allow custom rules to report and fix errors in front matter Open

enhancement fixed in next

Difficulty 4/5 3-5 days Newbie friendliness 65/100

DavidAnson/markdownlint#2239 · 2 comments · Opened Aug 29, 2026
Support pandoc's "bracketed spans" Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 68/100

DavidAnson/markdownlint#2045 · 2 comments · Opened Apr 24, 2026
MD053: optinally allow duplicate definitions Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 64/100

DavidAnson/markdownlint#2043 · 3 comments · Opened Apr 23, 2026
MD060: Condider allowing opt-out of CJK character double-width behavior Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

DavidAnson/markdownlint#2034 · 2 comments · 1 reaction · Opened Apr 12, 2026
Report empty lines within lists Open

new rule

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

DavidAnson/markdownlint#1958 · 1 comment · Opened Feb 14, 2026
MD059: Identify bad link texts using "non-descriptive words" rather than "disallowed texts"? Open

question

Difficulty 5/5 Over a week Newbie friendliness 45/100

DavidAnson/markdownlint#1904 · 3 comments · 1 reaction · Opened Dec 31, 2025
MD055 add fixes Open

enhancement

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

DavidAnson/markdownlint#1902 · 4 comments · 1 reaction · Opened Dec 28, 2025
Proposal: Update MD060/table-column-style to allow exempting violations for the last column Open

enhancement

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

DavidAnson/markdownlint#1818 · 8 comments · 1 reaction · Opened Oct 17, 2025
Suggestion: Implement Model Context Protocol (MCP) interface for markdownlint library Open

enhancement

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

DavidAnson/markdownlint#1774 · 1 comment · Opened Sep 24, 2025
Ordered lists should be allowed variable number of spaces after prefixes Open

enhancement

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

DavidAnson/markdownlint#1736 · 5 comments · 1 reaction · Opened Sep 2, 2025
Proposal: Add rules for math block separation and heading emphasis Open

new rule

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

DavidAnson/markdownlint#1708 · 3 comments · Opened Aug 9, 2025
MD011: false positive when cross ref bibliography when writting academic paper after () Open

enhancement

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

DavidAnson/markdownlint#1670 · 6 comments · Opened Jul 13, 2025
Proposed rules for markdown comment formatting and readability. Open

new rule

Difficulty 5/5 Over a week Newbie friendliness 35/100

DavidAnson/markdownlint#1618 · Opened May 29, 2025
Proposal: disallow formatting in headings Open

new rule

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

DavidAnson/markdownlint#1608 · 2 comments · Opened May 19, 2025
MD043: Add support for grouping for CHANGELOG scenario (repeated heading sets) Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 48/100

DavidAnson/markdownlint#1601 · 7 comments · 2 reactions · Opened May 12, 2025
MD024: Allow defining `siblings_only` per level Open

enhancement

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

DavidAnson/markdownlint#1591 · Opened May 5, 2025
New rule to warn about (unordered) list items missing space between the list item marker and the text Open

new rule

Difficulty 3/5 1-2 days Newbie friendliness 30/100

DavidAnson/markdownlint#1560 · 7 comments · Opened Apr 7, 2025
Emit a warning for duplicate link labels that differ Open

new rule

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

DavidAnson/markdownlint#1475 · Opened Jan 29, 2025
MD013: Incorrect count on lines with multi-byte unicode characters Open

enhancement

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

DavidAnson/markdownlint#1458 · 1 comment · Opened Dec 26, 2024
Support rule option names in camelCase Open

enhancement

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

DavidAnson/markdownlint#1327 · 1 comment · Opened Aug 13, 2024
[Feature Request] Checking Space around Embedded Code, Bold and Italic Open

new rule

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

DavidAnson/markdownlint#1298 · 4 comments · Opened Jul 16, 2024
Feature Request: Recognize `markdownlint-*` configuration comments in "non-HTML comments" (unused link reference definitions) Open

enhancement

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

DavidAnson/markdownlint#1263 · 1 comment · 1 reaction · Opened Jun 19, 2024
MD014: Support `#` and `%`, not just the `$` sign Open

enhancement

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

DavidAnson/markdownlint#1208 · 3 comments · 2 reactions · Opened May 12, 2024
MD029: any interest in zero_one_or_ordered? Open

enhancement

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

DavidAnson/markdownlint#1135 · 9 comments · Opened Feb 20, 2024
MD040: Add disallowed_languages Open

enhancement

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

DavidAnson/markdownlint#1012 · 2 comments · Opened Oct 17, 2023
MD007 when MD010 disabled Open

enhancement

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

DavidAnson/markdownlint#1010 · 5 comments · Opened Oct 17, 2023
MD012: Allow it (no-multiple-blanks) to work with MD022 (blanks-around-headings) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

DavidAnson/markdownlint#990 · 3 comments · 1 reaction · Opened Sep 27, 2023
New rule: Prevent lazy continuation lines Open

new rule

Difficulty 5/5 Over a week Newbie friendliness 35/100

DavidAnson/markdownlint#977 · 13 comments · 9 reactions · Opened Sep 15, 2023
MD007: Allow several values for `start_indent` Open

enhancement

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

DavidAnson/markdownlint#973 · 2 comments · Opened Sep 14, 2023
MD048: Make it automatically fixable Open

enhancement

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

DavidAnson/markdownlint#968 · 3 comments · Opened Sep 13, 2023
MD030: Support variable indent in ordered lists for visual alignment Open

enhancement

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

DavidAnson/markdownlint#967 · Opened Sep 12, 2023
New rule proposal: no URL-encoded links Open

new rule

Difficulty 5/5 Over a week Newbie friendliness 35/100

DavidAnson/markdownlint#910 · 1 comment · 2 reactions · Opened Jul 17, 2023
MD049: Incorrectly detecting [[_TOC_]] Open

enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

DavidAnson/markdownlint#734 · 7 comments · Opened Mar 3, 2023
MD051: Allow link fragments to kramdown block IAL and span IAL ids Open

enhancement

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

DavidAnson/markdownlint#726 · 1 comment · 2 reactions · Opened Feb 23, 2023
Integrate OnkarRuikar/markdownlint-rule-search-replace Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

DavidAnson/markdownlint#673 · 13 comments · 1 reaction · Opened Dec 8, 2022
MD051: Add support for Gitiles section anchors and named anchors Open

enhancement

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

DavidAnson/markdownlint#570 · 6 comments · 4 reactions · Opened Aug 30, 2022
MD013: Unicode character width Open

enhancement

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

DavidAnson/markdownlint#564 · 5 comments · Opened Aug 19, 2022
MD013: Automatically fix line length Open

enhancement

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

DavidAnson/markdownlint#535 · 3 comments · 18 reactions · Opened Jul 13, 2022
MD031: Make rule configurable with lines above/after like MD022 Open

enhancement

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

DavidAnson/markdownlint#527 · 1 comment · 3 reactions · Opened May 20, 2022
Headings must be title-case Open

new rule

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

DavidAnson/markdownlint#521 · 3 comments · 7 reactions · Opened May 2, 2022
MD030: Allow dynamic configuration for alignment in multi-digit ordered lists Open

enhancement

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

DavidAnson/markdownlint#499 · 1 comment · 1 reaction · Opened Feb 8, 2022
MD046: Make a fixable rule Open

enhancement

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

DavidAnson/markdownlint#488 · 2 reactions · Opened Jan 21, 2022
MD038: Improved fixing for words stuck to backtick Open

enhancement

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

DavidAnson/markdownlint#481 · Opened Jan 17, 2022
Add rule for image without line break Open

new rule

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

DavidAnson/markdownlint#474 · 1 comment · 1 reaction · Opened Dec 29, 2021
MD033: Add option to allow or prohibit html attributes Open

enhancement

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

DavidAnson/markdownlint#464 · 5 comments · 1 reaction · Opened Dec 9, 2021
Prefer backslash over two spaces for line breaks Open

new rule

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

DavidAnson/markdownlint#455 · 3 comments · Opened Nov 3, 2021
MD024: Allow hr separated sections to share titles/subtitles Open

enhancement

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

DavidAnson/markdownlint#438 · 5 comments · 1 reaction · Opened Oct 6, 2021

DavidAnson/markdownlint

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