lxml VS html5lib

Compare lxml vs html5lib and see what are their differences.


The lxml XML toolkit for Python (by lxml)


Standards-compliant library for parsing and serializing HTML documents and fragments in Python (by html5lib)
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lxml html5lib
17 3
2,581 1,095
1.1% 0.5%
9.6 4.1
6 days ago 3 months ago
Python Python
GNU General Public License v3.0 or later MIT License
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.


Posts with mentions or reviews of lxml. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-02-01.


Posts with mentions or reviews of html5lib. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-11-25.
  • Bleach 6.0.0 Release and Deprecation
    1 project | news.ycombinator.com | 27 Jan 2023
    Yes. This is really interesting.

    Sounds like html5lib has been asking for funding, but doesn't look like there's much progress. https://github.com/html5lib/html5lib-python/issues/361

  • Pydantic Factories
    2 projects | /r/Python | 25 Nov 2021
    Neither did html5lib.
  • Why are circular dependencies even a thing?
    3 projects | /r/linuxquestions | 25 Sep 2021
    Easier example...sphinx is a document generator for python programs (creating docs for the API of programs from source-code comments for example). Spinx depends on html5lib which itself again depends on six...want to make a guess what six uses to generate its API docs? ;) So if you want the api docs of six you will have to first install it without to be able to get a working sphinx install then redo the six on including the building of the API docs.

What are some alternatives?

When comparing lxml and html5lib you can also consider the following projects:

xmltodict - Python module that makes working with XML feel like you are working with JSON

xhtml2pdf - A library for converting HTML into PDFs using ReportLab

selectolax - Python binding to Modest and Lexbor engines (fast HTML5 parser with CSS selectors).

bleach - Bleach is an allowed-list-based HTML sanitizing library that escapes or strips markup and attributes

untangle - Converts XML to Python objects

pyquery - A jquery-like library for python

gazpacho - 🥫 The simple, fast, and modern web scraping library

rust-cpython - Rust <-> Python bindings

xmldataset - xmldataset: xml parsing made easy 🗃️