diff --git a/.compress-all.js b/.compress-all.js
new file mode 100644
index 0000000..dcbce1e
--- /dev/null
+++ b/.compress-all.js
@@ -0,0 +1,32 @@
+const glob = require("glob");
+const minify = require('@node-minify/core');
+const htmlMinifier = require('@node-minify/html-minifier');
+const crass = require('@node-minify/crass');
+
+console.log('compress all html and css files');
+
+glob("dist/**/*.html", function (er, files) {
+    files.forEach(file => {
+        console.log(file);
+        minify({
+            compressor: htmlMinifier,
+            input: file,
+            output: file,
+            options: {
+                collapseWhitespace: true,
+                conservativeCollapse: true
+            },
+        });
+    })
+});
+
+glob("dist/**/*.css", function (er, files) {
+    files.forEach(file => {
+        console.log(file);
+        minify({
+            compressor: crass,
+            input: file,
+            output: file
+        });
+    })
+});
diff --git a/package.json b/package.json
index 95a3c13..c472b19 100644
--- a/package.json
+++ b/package.json
@@ -4,12 +4,11 @@
   "description": "website for sp-codes.de",
   "scripts": {
     "compile-sass": "node-sass --output-style compressed --importer=node_modules/node-sass-tilde-importer src/scss/main.scss -o dist/css/",
-    "p-minify-css": "purifycss dist/css/main.css dist/**/*.html dist/**/**/*.html dist/**/**/**/*.html -i -m -o dist/css/main.css",
     "minify-css": "uncss -n -H dist/ -o dist/css/main.css dist/**/*.html dist/**/**/*.html dist/**/**/**/*.html",
     "watch:eleventy": "eleventy --serve",
     "watch:sass": "npm-run-all compile-sass minify-css -- --watch",
     "start": "npm-run-all compile-sass minify-css --parallel watch:*",
-    "build": "npm run compile-sass && eleventy && npm run move-index && npm run minify-css",
+    "build": "npm run compile-sass && eleventy && npm run move-index && npm run minify-css && node .compress-all.js",
     "move-index": "cpx dist/de/index.html dist/"
   },
   "author": "samuel-p",
@@ -23,7 +22,12 @@
   "devDependencies": {
     "@11ty/eleventy": "^1.0.0-canary.33",
     "@11ty/eleventy-navigation": "^0.2.0",
+    "@node-minify/core": "^6.2.0",
+    "@node-minify/crass": "^6.2.0",
+    "@node-minify/html-minifier": "^6.2.0",
     "cpx": "^1.5.0",
+    "glob": "^7.1.7",
+    "minify": "^7.0.2",
     "node-sass": "^6.0.0",
     "node-sass-tilde-importer": "^1.0.2",
     "npm-run-all": "^4.1.5",