html-minifier-next --minify-css --cache-css 750 --minify-js --cache-js 250 --minify-svg --cache-svg 100 input.html ... export HMN_CACHE_CSS=750 export HMN_CACHE_JS=250 export HMN_CACHE_SVG=100 html-minifier-next --minify-css --minify-js --minify-svg input.html

HTML Minifier Next is an enhanced and maintained minifier by Jens Oliver Meiert. The original HTML Minifier was made by Juriy “kangax” Zaytsev, using a tweaked version of HTML parser by John Resig, which was based on work by Erik Arvidsson. Source and bug tracker are available on GitHub

As HTML Minifier is so useful, I decided to release an updated fork, HTML Minifier Next (source, web version).

# Show processing details while minifying html-minifier-next --input-dir=src --output-dir=dist --verbose --collapse-whitespace # Output: Options: collapseWhitespace, html5, includeAutoGeneratedTags # ✓ src/index.html: 1,234 → 892 bytes (-342, 27.7%) # ✓ src/about.html: 2,100 → 1,654 bytes (-446, 21.2%) # --- # Total: 3,334 → 2,546 bytes (-788, 23.6%) # `--dry` automatically enables verbose output html-minifier-next --input-dir=src --output-dir=dist --dry --collapse-whitespace · If you have chunks of markup you would like preserved, you can wrap them with <!-- htmlmin:ignore -->.

Max. line length Specify a maximum line length. Compressed output will be split by newlines at valid HTML split-points

html-minifier-next --collapse-whitespace --remove-comments --minify-js --input-dir=. --output-dir=example

Compressed output will be split by newlines at valid HTML split-points ... Always collapse to 1 line break (never remove it entirely) when whitespace between tags include a line break. Must be used in conjunction with collapseWhitespace=true ... Array of strings corresponding to types of script elements to process through minifier (e.g.

html-minifier-next --collapse-whitespace --remove-comments --minify-js true --input-dir=. --output-dir=example

html-minifier-next --collapse-whitespace --remove-comments --minify-js true --input-dir=. --output-dir=example

//html minifier app.use((req, res, ...uteQuotes: true, removeEmptyAttributes: true, minifyJS: true }; res.sendMinify = (html) => { res.send(minify(html, opts)); }; next(); });...

html-minifier-next --collapse-whitespace --remove-comments --minify-js true --input-dir=. --output-dir=example

If you haven’t used HMN yet, try it out on the playground or right in your projects! If you’re using HTML Minifier (unmaintained) or HTML Minifier Terser (effectively unmaintained), you should be able to upgrade without problems by changing the package to html-minifier-next instead.

🎯 Targeted Minification - Choose what to minify: HTML comments, JavaScript comments, or Knockout comments

Compressed output will be split by newlines at valid HTML split-points ... Always collapse to 1 line break (never remove it entirely) when whitespace between tags include a line break. Must be used in conjunction with collapseWhitespace=true ... Array of strings corresponding to types of script elements to process through minifier (e.g.

June 29, 2021 - <script> var $tag = function(tag) { return document.getElementsByTagName(tag); } function minify_html(type, input, output) { output.value = input.value .replace(/\<\!--\s*?[^\s?\[][\s\S]*?--\>/g,'') .replace(/\>\s*\</g,'><'); } document.getElementById("htmlMinify").addEventListener("click", function(){ minify_html( this.innerHTML, $tag('textarea')[0], $tag('textarea')[1] ); }, false); </script> ... Hi, I’m Rahul Jangir — a tech geek, design enthusiast, and online expert. I’m a technology graduate with a deep addiction to front-end development. I love blending AI, design, and development to build ... I do like your answer I think it has a great specific use case, but I am confused by the rigidity of this approach. Example if someone minifies a chunk of html which has no doctype or head or body.

A quick overview of some recent improvements to one of the oldest and most versatile HTML minifiers.

🔌 Minify Astro HTML assets using html-minifier-next! - jonasgeiler/astro-html-minifier-next

February 21, 2025 - In this example, minifix will minify the specified input files and output the minified versions to the specified locations. You can also customize the minification options for each file type, such as preserving comments in JavaScript or removing redundant attributes in HTML.

minifyHtml (html) { let minificationOptions = this.options.build.html.minify // Legacy: Override minification options with generate.minify if present // TODO: Remove in Nuxt version 3 if (typeof this.options.generate.minify !== 'undefined') { minificationOptions = this.options.generate.minify consola.warn('generate.minify has been deprecated and will be removed in the next major version.'

This is a good example of how carelessly used whitespace can add up to huge number like this. And again, gzip saves the day; minifying compressed document reduces it only by 2.7KB. Original size: 703KB (122.5KB gzipped) Minified size: 572KB (106.4KB gzipped) Savings: 131KB (16KB gzipped) Large static documents is where HTML minification truly shines, and HTML version of ECMAScript (3rd ed.) language specification is a clear demonstration of it.