A highly configurable, well-tested JavaScript-based HTML compressor/minifier with Node.js support.
HTMLMinifier is a JavaScript-based HTML compressor and minifier that reduces the size of HTML files by removing unnecessary characters like whitespace, comments, and redundant attributes. It helps improve website performance by decreasing page load times and bandwidth usage, and it supports extensive configuration to tailor the minification process.
Frontend developers, web performance engineers, and build tool users who need to optimize HTML output for production websites or applications.
Developers choose HTMLMinifier for its high configurability, reliability, and comprehensive feature set, including the ability to minify inline CSS and JavaScript, handle special cases like SVG, and integrate seamlessly into Node.js build pipelines.
Javascript-based HTML compressor/minifier (with Node.js support)
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Offers over 30 granular settings, such as collapsing whitespace and removing comments, allowing developers to tailor minification precisely to their HTML structure.
Benchmarked against major websites like Google and Twitter, showing consistent size reductions, and backed by a comprehensive test suite for reliability.
Integrates clean-css and UglifyJS to minify CSS and JavaScript within style and script elements, reducing overall file size without extra tools.
Automatically preserves SVG tags and allows ignoring markup chunks with custom comments, ensuring compatibility with diverse HTML content.
Explicitly marked as no longer maintained in the README, with critical security fixes and new features only available in the successor project, HTML Minifier Next.
With over 30 options, many disabled by default, setup can be daunting and error-prone, requiring deep understanding of HTML semantics to avoid breaking markup.
Cannot process invalid or partial HTML chunks, as it relies on parsing a complete tree structure, limiting use in edge cases or malformed inputs.