validator/htmlparser

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The Validator.nu HTML parser https://about.validator.nu/htmlparser/

Stars: 65
Forks: 29
Open beginner issues: 0
Indexed issues: 18
Avg merge: 11d 21h
Merged PRs (30d): 3

Dominant language: Java
License: No license data
Last GitHub push: Sep 8, 2026
Latest indexed: Sep 19, 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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18 open issues indexed

Expected error is raised only after second (identical) attempt Open

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

validator/htmlparser#98 · Opened Sep 10, 2025
Tags for versions 1.4.1 - 1.4.16 ? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

validator/htmlparser#96 · 1 comment · 1 reaction · Opened Jun 11, 2025
Consider replacing jchardet by juniversalchardet Open

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

validator/htmlparser#95 · Opened Jun 7, 2025
Obsolete warning: "The attribute may be dropped by IE7" Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

validator/htmlparser#87 · Opened Sep 28, 2023
Allow specifying charset and/or improve charset detection Open

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

validator/htmlparser#79 · Opened Mar 24, 2023
Fuzzing htmlparser by way of OSS-Fuzz Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

validator/htmlparser#60 · Opened Nov 8, 2021
Please add back `nu.validator.htmlparser.tools` Open

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

validator/htmlparser#53 · 1 comment · 1 reaction · Opened Sep 28, 2021
“Start tag in table body” message for <thead><th></th></thead> is confusing Open

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

validator/htmlparser#102 · 4 comments · Opened Dec 23, 2020
Investigate html5lib-tests encoding cases that are failing Open

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

validator/htmlparser#47 · 3 comments · Opened Aug 18, 2020
Decide on the way forward Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

validator/htmlparser#26 · 15 comments · Opened Jul 6, 2020
Publish as modular JAR(s) to Maven Central Open

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

validator/htmlparser#14 · 23 comments · Opened Apr 22, 2020
HTML parser throws AssertionErrors when -enableassertions is set Open

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

validator/htmlparser#12 · 2 comments · Opened Apr 16, 2020
Validator doesn't follow 'get an encoding' in WHATWG Encoding spec Open

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

validator/htmlparser#104 · 4 comments · Opened Oct 1, 2019
A numeric character reference expanded to the C1 controls range. Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

validator/htmlparser#111 · 16 comments · Opened Sep 24, 2019
U+0000 is now a parse error in bogus comment and bogus DOCTYPE states Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

validator/htmlparser#100 · Opened Aug 22, 2017
Implement more helpful error message that is caused by <foo unquoted=/> Open

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

validator/htmlparser#101 · 2 comments · Opened Jun 11, 2017
Report more-helpful message for *No p element in scope but a p end tag seen* Open

enhancement

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

validator/htmlparser#103 · 6 comments · Opened Mar 28, 2017
Encoding detection unpredictable Open

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

validator/htmlparser#105 · 5 comments · Opened Nov 3, 2015

validator/htmlparser

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