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This is an agile HTML parser that builds a read/write DOM and supports plain XPATH or XSLT (you actually don't HAVE to understand XPATH nor XSLT to use it, don't worry...). It is a .NET code library that allows you to parse "out of the web" HTML files. The parser is very tolerant with "real world" malformed HTML. The object model is very similar to what proposes System.Xml, but for HTML documents (or streams). --------------------------------------- This library is sponsored by ZZZ Projects: https://entityframework-extensions.net/ https://eval-expression.net/ https://dapper-plus.net/ --------------------------------------- HAP is trusted by companies worldwide with over 150 million downloads.
Last release 1 months ago
24 Aug 2026
Release timing varies
gaps range from 2 weeks to 9 months
Rarely documented
notes for 9 of the last 60 stable releases
18 versions withdrawn
withdrawn after publishing
127 years old
173 releases · first in 1900
RELEASED: released the v1.13.0-beta1 as a stable version
RELEASED: released the v1.13.0-beta1 as a stable version
This library is sponsored by Entity Framework Extensions
FIXED: New nullable issue when on .net 9 #600 and Wrong compilation with nullability support #597 (A big thank to @r-Larch and his PR #596 , all credi
One column per quarter.
ADDED: New property OriginalOuterLength for OuterLength is incorrect, refering to the reconstructed OuterHtml and not the original #602 FIXED: EndNode
ADDED: New property OriginalOuterLength for OuterLength is incorrect, refering to the reconstructed OuterHtml and not the original #602
FIXED: EndNode is not null for self-closing tags (documentation) #603
MERGED: Don't allocate AttributesCollection in HtmlNode unless needed #558
MERGED: Reduce need to call string.ToLower with proper comparisons #559
This library is sponsored by Entity Framework Extensions
FIXED: High memory usage in WriteAttribute #601 MERGED: Optimize HtmlNode.WriteAttribute #556 MERGED: Add non-boxing enumerator for HtmlNodeCollection
FIXED: High memory usage in WriteAttribute #601
MERGED: Optimize HtmlNode.WriteAttribute #556
MERGED: Add non-boxing enumerator for HtmlNodeCollection #555
This library is sponsored by Entity Framework Extensions
FIXED: The library now target .NET7 instead of .NET8 to avoid all nullable annotations ( #587 , #594 ) issues MERGED: IsOverlappedClosingElement: Inco
FIXED: The library now target .NET7 instead of .NET8 to avoid all nullable annotations (#587, #594) issues
MERGED: IsOverlappedClosingElement: Incorrect Length Check for Minimal Tags #593
MERGED: Use Dictionary.TryGetValue to avoid double lookup #595
This library is sponsored by Entity Framework Extensions
FIXED: Wrong nullable attributes #587
This library is sponsored by Entity Framework Extensions
FIXED: Dependency Vulnerability on System.Text.RegularExpressions #581
This library is sponsored by Entity Framework Extensions
FIXED: Error with LoadFromWebAsync after v1.11.73 #586
This library is sponsored by Entity Framework Extensions
MERGED: Fixes issues with colgroup and caption tags not being closed properly. Issues #584 and #583 (PR #585 )
Added: AttributeValueQuote.InitialExceptWithoutValue to fix #575
AttributeValueQuote.InitialExceptWithoutValue to fix #575This library is sponsored by Entity Framework Extensions
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