{"id":272,"date":"2026-08-21T23:36:42","date_gmt":"2026-08-21T23:36:42","guid":{"rendered":"https:\/\/netguide.io\/tools\/css-minifier\/"},"modified":"2026-08-21T23:36:42","modified_gmt":"2026-08-21T23:36:42","slug":"css-minifier","status":"publish","type":"post","link":"https:\/\/netguide.io\/tools\/de\/css-minifier\/","title":{"rendered":"CSS-Minifier"},"content":{"rendered":"<div id=\"netgu-4223677320\" class=\"netgu-before-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"3494115342\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>\n<style>\n.wp-cm-container { max-width:100%; background:#fff; padding:20px; border:1px solid #ddd; border-radius:10px; font-family:-apple-system, sans-serif; color:#333; }\n.wp-cm-title { margin:0 0 15px 0; color:#2271b1; font-size:1.4rem; }\n.wp-cm-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(140px, 1fr)); gap:12px; margin-bottom:10px; }\n.wp-cm-input-group label { display:block; font-size:11px; font-weight:bold; margin-bottom:4px; text-transform:uppercase; color:#666; }\n.wp-cm-input-group input, .wp-cm-input-group select { width:100%; padding:8px; border:1px solid #ccc; border-radius:4px; box-sizing:border-box; }\n.wp-cm-checkbox-group { margin:15px 0; font-size:12px; display:flex; align-items:center; gap:8px; color:#666; }\n.wp-cm-note { font-size:12px; color:#666; margin-top:12px; min-height:1em; }\n.wp-cm-warn { color:#d63638; font-weight:bold; }\n.wp-cm-results { margin-top:20px; border-top:2px solid #eee; padding-top:15px; }\n.wp-cm-res-item { display:flex; justify-content:space-between; margin-bottom:6px; font-size:14px; gap:10px; }\n.wp-cm-total { font-weight:bold; font-size:18px; color:#2271b1; margin:10px 0; padding:5px 0; border-top:1px solid #eee; border-bottom:1px solid #eee; }\n.wp-cm-val { color:#2271b1; font-weight:bold; }\n.wp-cm-out { width:100%; box-sizing:border-box; padding:10px; border:1px solid #ccc; border-radius:4px; font-family:monospace; font-size:13px; word-break:break-all; background:#f7f7f7; margin-top:6px; }\n.wp-cm-btn { background:#2271b1; color:#fff; border:none; padding:9px 14px; border-radius:4px; cursor:pointer; font-size:13px; margin-top:10px; }\n<\/style><script>window.wpCmL = {\"chars\":\"Zeichen\"};<\/script>\n<div class=\"wp-cm-container\">\n  <h3 class=\"wp-cm-title\">CSS-Minifier<\/h3>\n  <div class=\"wp-cm-input-group\"><label>CSS<\/label><textarea id=\"cm-in\" style=\"width:100%;box-sizing:border-box;height:150px;padding:10px;border:1px solid #ccc;border-radius:5px;font-family:monospace;font-size:13px;\" oninput=\"minifyCss()\">.button {\n  color: #2271b1;   \/* primary *\/\n  padding: 10px 20px;\n  border-radius: 4px;\n}<\/textarea><\/div>\n  <div id=\"cm-stat\" class=\"wp-cm-note\" style=\"margin:8px 0;\"><\/div>\n  <label style=\"display:block;font-size:11px;font-weight:bold;text-transform:uppercase;color:#666;margin:4px 0;\">Minifiziert<\/label>\n  <textarea id=\"cm-out\" style=\"width:100%;box-sizing:border-box;height:150px;padding:10px;border:1px solid #ccc;border-radius:5px;font-family:monospace;font-size:13px;\" readonly><\/textarea>\n  <button class=\"wp-cm-btn\" onclick=\"copyCm()\">Kopieren<\/button>\n  <div class=\"wp-cm-note\">Entfernt Kommentare und unn\u00f6tige Leerzeichen. F\u00fcr komplexe Sonderf\u00e4lle (Strings mit Klammern) empfiehlt sich ein vollwertiger Build-Tool-Minifier.<\/div>\n<\/div>\n<script>\nfunction minifyCss(){\n  var css=document.getElementById('cm-in').value; var before=css.length;\n  var m=css.replace(\/\\\/\\*[\\s\\S]*?\\*\\\/\/g,'');\n  m=m.replace(\/\\s+\/g,' ');\n  m=m.replace(\/\\s*([{}:;,>~+])\\s*\/g,'$1');\n  m=m.replace(\/;}\/g,'}');\n  m=m.trim();\n  document.getElementById('cm-out').value=m;\n  var L=window.wpCmL||{};\n  var saved= before>0 ? Math.round((1-m.length\/before)*100) : 0;\n  document.getElementById('cm-stat').innerText=before+' \\u2192 '+m.length+' '+(L.chars||'chars')+' (\\u2212'+saved+'%)';\n}\nfunction copyCm(){ var o=document.getElementById('cm-out'); if(!o.value)return; o.focus(); o.select(); try{navigator.clipboard.writeText(o.value);}catch(e){} }\nminifyCss();\n<\/script>\n\n\n<div id=\"netgu-2035657149\"><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- NetGuide.io-After-Widget-Tools -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6258556257245998\"\r\n     data-ad-slot=\"5175852350\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">CSS verkleinern<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Der Minifier entfernt Kommentare, Zeilenumbr\u00fcche und \u00fcberfl\u00fcssige Leerzeichen aus CSS-Code. Das verkleinert die Datei und beschleunigt das Laden deiner Website. Der Statuszeile entnimmst du, wie viele Zeichen eingespart wurden.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kommentare:<\/strong> <code>\/* \u2026 *\/<\/code> wird entfernt.<\/li>\n\n\n<li><strong>Leerzeichen:<\/strong> Umbr\u00fcche und Mehrfach-Leerzeichen werden zusammengefasst, unn\u00f6tige Zeichen um Klammern und Doppelpunkte entfernt.<\/li>\n\n\n<li><strong>Grenzen:<\/strong> Ein einfacher Minifier \u2013 f\u00fcr Randf\u00e4lle (z. B. Klammern in Content-Strings) nutze das Minify-Tool deines Build-Systems.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Verwandte Tools<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"\/tools\/de\/json-formatter-validator\/\">JSON Formatter &#038; Validator<\/a><\/li>\n\n\n<li><a href=\"\/tools\/de\/html-entity-encoder-decoder\/\">HTML-Entity-Encoder \/ -Decoder<\/a><\/li>\n<\/ul>\n\n\n<div id=\"netgu-3196968146\" class=\"netgu-after-content netgu-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6258556257245998\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-6258556257245998\" \ndata-ad-slot=\"4559785002\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>CSS verkleinern \u2013 Kommentare und \u00fcberfl\u00fcssige Leerzeichen entfernen, Dateigr\u00f6\u00dfe reduzieren. L\u00e4uft komplett im Browser.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[53],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","hentry","category-converter"],"brizy_media":[],"_links":{"self":[{"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":0,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"wp:attachment":[{"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/netguide.io\/tools\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}