JustHTML vs lxml

Side-by-side — pricing, strengths, tradeoffs, and fit.

JustHTML

A pure Python HTML5 parser that just works.

lxml

Fast and easy HTML/XML library for Python

At a glance

Open SourceFree Tier
◐ Growing·From $0
Open SourceFree Tier
● Established·From $0

Overview

One-liner

A pure Python HTML5 parser that just works.

One-liner

Fast and easy HTML/XML library for Python

Maturity

Growing

Maturity

Established

Open source

✓ Yes

Open source

✓ Yes

Pricing

Free tier

✓ Available

Open source — free to use

Free tier

✓ Available

Open source — free to use

Starts at

$0

Starts at

$0

Model

Flat rate

Model

Flat rate

Enterprise

✕ None

Enterprise

✕ None

Best for

✓ Best for

Developers who need a lightweight and dependency-free HTML parser for Python projects
Teams working on web scraping applications that require efficient data extraction from HTML content

✓ Best for

Developers who need to parse or generate complex XML/HTML documents efficiently
Projects requiring high-performance data extraction from web pages using Python

Not ideal for

✕ Not for

Projects requiring complex DOM manipulation or rendering capabilities beyond simple parsing
Applications needing real-time updates or dynamic content handling, as JustHTML focuses on static HTML parsing

✕ Not for

Applications that require real-time processing of large volumes of HTML/XML data without local processing capabilities
Scenarios where a full Python environment is not available or feasible to use

Strengths

↑ Strengths

Pure Python implementation without external dependencies
Efficient and lightweight HTML5 parsing capabilities
Simplified API for easy integration into web scraping projects

↑ Strengths

High performance parsing and serialization of XML/HTML documents
Support for XPath expressions to query elements in the document tree
Easy-to-use API for creating, modifying, and querying XML/HTML structures

Weaknesses

↓ Weaknesses

Limited error handling for complex HTML structures
Performance issues with large HTML files
Lack of comprehensive documentation and examples
No support for JavaScript-rendered content

↓ Weaknesses

Limited error messages can complicate debugging
Performance hit when working with very large files
Dependence on C libraries can cause installation issues
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