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philss/floki

Floki is an Elixir library for parsing and querying HTML documents. It provides a unified API for parsing HTML using multiple backends (Mochiweb, Html5ever, and FastHTML) and supports CSS-like selectors for traversing and manipulating the HTML tree structure. The system includes comprehensive test coverage and benchmarking tools to ensure compliance with HTML5 specifications and performance optimization.

66.1

Adequate · 1 August 2026

8.7k

lines of production code

Elixir

with Erlang

3

bus factor · 110 authors in all

3

measurements over time

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How it got here

2014 · API modernization and test expansion

The Floki library introduced explicit parsing functions and an options-based API to replace the previous parse/1 function, while expanding test coverage across multiple HTML parsers. This period also standardized project governance and updated dependencies to support modern Elixir versions.

5 changes

2015–2016 · CSS selector engine and performance refactoring

The project focused on a major internal refactoring of the Floki library, introducing a new HTML tree structure and optimized text extraction for better performance. The CSS selector engine was completely rewritten into modular components to support complex selectors, while the underlying Mochiweb HTML parser and selector lexer were integrated to support these changes.

4 changes

2017–2021 · HTML5-compliant tokenizer and parser rewrite

The project implemented a new HTML5-compliant tokenizer and multiple HTML parser backends, including FastHTML, Html5ever, and Mochiweb. This involved replacing previous parsing logic with a spec-compliant state machine and adding comprehensive test coverage and benchmarking scripts.

7 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 1 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 143df1fa0d — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
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