diff --git a/.eleventy.js b/.eleventy.js
index 95e897e2..bdb1efb3 100644
--- a/.eleventy.js
+++ b/.eleventy.js
@@ -4,6 +4,7 @@ import lightningCSS from '@11tyrocks/eleventy-plugin-lightningcss'
 import markdownIt from 'markdown-it'
 import markdownItAnchor from 'markdown-it-anchor'
 import markdownItFootnote from 'markdown-it-footnote'
+import htmlmin from 'html-minifier-terser'
 import filters from './config/filters/index.js'
 import { minifyJsComponents } from './config/events/index.js'
 import { allContent, popularPosts, searchIndex } from './config/collections/index.js'
@@ -83,6 +84,29 @@ export default async function (eleventyConfig) {
   eleventyConfig.addShortcode('appVersion', () => appVersion)
   eleventyConfig.addShortcode('currentYear', () => DateTime.now().year)
 
+  // transforms
+  eleventyConfig.addTransform('html-minify', (content, path) => {
+    if (path && path.endsWith('.html')) {
+      return htmlmin.minify(content, {
+        collapseBooleanAttributes: true,
+        collapseWhitespace: true,
+        decodeEntities: true,
+        includeAutoGeneratedTags: false,
+        minifyCSS: true,
+        minifyJS: true,
+        minifyURLs: true,
+        noNewlinesBeforeTagClose: true,
+        quoteCharacter: '"',
+        removeComments: true,
+        sortAttributes: true,
+        sortClassName: true,
+        useShortDoctype: true,
+        processScripts: ['application/ld+json'], // minify JSON-LD scripts
+      })
+    }
+    return content
+  })
+
   // events
   eleventyConfig.on('afterBuild', minifyJsComponents)