diff --git a/chrome_extensions_checker/index.html b/chrome_extensions_checker/index.html
new file mode 100644
index 0000000..19c2c72
--- /dev/null
+++ b/chrome_extensions_checker/index.html
@@ -0,0 +1,288 @@
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Chrome Extensions Checker | PonyWave Tools</title>
+    <meta name="description" content="Analysiere deine Chrome Extensions lokal und sicher.">
+    <meta property="og:title" content="Chrome Extensions Checker | PonyWave Tools">
+    <meta property="og:description" content="Analysiere deine Chrome Extensions lokal und sicher.">
+    <meta property="og:url" content="https://tools.ponywave.de/chrome_extensions_checker">
+    <meta property="og:image" content="https://tools.ponywave.de/favicon.png">
+    <meta property="og:type" content="website">
+    <link rel="icon" href="https://tools.ponywave.de/favicon.png">
+    <script defer src="https://stats.ponywave.de/script" data-website-id="9ef713d2-adb9-4906-9df5-708d8a8b9131" data-tag="chrome_extensions_checker"></script>
+    <style>
+        html, body {
+            height: 100%;
+            margin: 0;
+            padding: 0;
+        }
+        body {
+            min-height: 100vh;
+            margin: 0;
+            background: linear-gradient(120deg, #e0e7ff 0%, #f8fafc 100%);
+            font-family: 'Segoe UI', Arial, sans-serif;
+            color: #222;
+        }
+        .container {
+            max-width: 1200px;
+            width: 100%;
+            margin: 40px auto 0 auto;
+            background: #fff;
+            border-radius: 18px;
+            box-shadow: 0 4px 24px rgba(0,0,0,0.08);
+            padding: 2.5em 2em 2em 2em;
+            box-sizing: border-box;
+        }
+        h1 {
+            color: #3b82f6;
+            margin-top: 0;
+            letter-spacing: 1px;
+            font-size: 2.2em;
+        }
+        .hinweis {
+            background: #fef9c3;
+            color: #a16207;
+            border: 1px solid #fde68a;
+            padding: 1.1em 1em;
+            border-radius: 8px;
+            margin-bottom: 1.5em;
+            font-size: 1.08em;
+        }
+        textarea {
+            width: 100%;
+            min-height: 160px;
+            max-height: 320px;
+            font-family: 'Fira Mono', 'Consolas', monospace;
+            font-size: 1em;
+            border: 1.5px solid #cbd5e1;
+            border-radius: 7px;
+            padding: 0.8em;
+            margin-bottom: 1em;
+            background: #f1f5f9;
+            resize: vertical;
+            box-sizing: border-box;
+            transition: border 0.2s;
+        }
+        textarea:focus {
+            border: 1.5px solid #3b82f6;
+            outline: none;
+            background: #fff;
+        }
+        button {
+            background: linear-gradient(90deg, #3b82f6 60%, #6366f1 100%);
+            color: #fff;
+            border: none;
+            border-radius: 7px;
+            padding: 0.7em 2.2em;
+            font-size: 1.1em;
+            font-weight: 500;
+            cursor: pointer;
+            box-shadow: 0 2px 8px rgba(59,130,246,0.08);
+            margin-bottom: 1.5em;
+            transition: background 0.2s, box-shadow 0.2s;
+        }
+        button:hover {
+            background: linear-gradient(90deg, #2563eb 60%, #4f46e5 100%);
+            box-shadow: 0 4px 16px rgba(59,130,246,0.13);
+        }
+        .error {
+            color: #dc2626;
+            margin: 1em 0;
+            font-weight: 500;
+        }
+        .table-wrapper {
+            width: 100%;
+            overflow-x: auto;
+            margin-top: 1em;
+            border-radius: 12px;
+            box-shadow: 0 2px 8px rgba(59,130,246,0.06);
+            background: #fff;
+        }
+        .row-v2-warning {
+            background: #fee2e2 !important;
+            color: #b91c1c !important;
+        }
+        .row-v2-warning td, .row-v2-warning th {
+            background: #fee2e2 !important;
+            color: #b91c1c !important;
+        }
+        table {
+            min-width: 900px;
+            width: 100%;
+            border-collapse: separate;
+            border-spacing: 0;
+            background: #fff;
+            margin: 0;
+            border-radius: 12px;
+            overflow: hidden;
+            box-shadow: none;
+        }
+        th, td {
+            padding: 12px 10px;
+            border-bottom: 1px solid #e5e7eb;
+            text-align: left;
+            vertical-align: top;
+        }
+        th {
+            background: #f1f5f9;
+            color: #2563eb;
+            font-weight: 600;
+            font-size: 1.05em;
+        }
+        tr:last-child td {
+            border-bottom: none;
+        }
+        tr:nth-child(even) td {
+            background: #f8fafc;
+        }
+        td code {
+            background: #f3f4f6;
+            border-radius: 4px;
+            padding: 2px 5px;
+            font-size: 0.98em;
+        }
+        @media (max-width: 900px) {
+            .container { padding: 1em 0.5em; }
+            th, td { font-size: 0.97em; }
+        }
+        @media (max-width: 600px) {
+            .container { padding: 0.5em 0.1em; }
+            table, thead, tbody, th, td, tr { display: block; }
+            th { position: absolute; left: -9999px; top: -9999px; }
+            tr { margin-bottom: 1.2em; border-radius: 8px; box-shadow: 0 1px 4px #e0e7ff; background: #fff; }
+            td { border: none; position: relative; padding-left: 50%; min-height: 32px; }
+            td:before {
+                position: absolute;
+                left: 12px;
+                top: 12px;
+                width: 45%;
+                white-space: nowrap;
+                font-weight: 600;
+                color: #2563eb;
+                content: attr(data-label);
+            }
+        }
+        .warnung {
+            background: #fee2e2;
+            color: #b91c1c;
+            border: 1.5px solid #fca5a5;
+            padding: 1em 1em;
+            border-radius: 8px;
+            margin-bottom: 1.2em;
+            font-size: 1.08em;
+            font-weight: 500;
+        }
+        footer {
+            text-align: center;
+            padding: 2rem 1rem;
+            margin-top: 2rem;
+            background-color: #fff;
+            border-top: 1px solid #e5e7eb;
+        }
+        footer a {
+            color: #3b82f6;
+            text-decoration: none;
+        }
+        footer a:hover {
+            text-decoration: underline;
+        }
+        .heart {
+            color: #b91c1c;
+            animation: heartbeat 1.5s infinite;
+        }
+        @keyframes heartbeat {
+            0%, 100% { transform: scale(1); }
+            50% { transform: scale(1.1); }
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>Chrome Extensions Checker</h1>
+        <div class="hinweis">
+            <b>Hinweis:</b> Öffne <code>chrome://extensions-internals</code> in Chrome, kopiere das gesamte JSON aus dem Bereich <b>"Extensions State"</b> und füge es unten ein. Es werden nur Informationen zu den Erweiterungen angezeigt.<br>
+            <b>Es werden keine Daten an einen Server gesendet, alles wird lokal im Browser verarbeitet.</b>
+        </div>
+        <div class="warnung">
+            <b>Achtung:</b> Google entfernt am <b>05. August 2025</b> den Support für Manifest v2. Erweiterungen mit Manifest-Version 2 werden ab diesem Datum nicht mehr funktionieren!
+        </div>
+        <textarea id="jsonInput" placeholder="Füge hier dein JSON ein..."></textarea>
+        <button onclick="parseExtensions()">Anzeigen</button>
+        <div id="error" class="error"></div>
+        <div id="output"></div>
+    </div>
+    <footer>
+        <div class="container">
+            <p><a href="https://tools.ponywave.de/">Zurück zur Startseite</a> | &copy; <span id="current-year"></span> Akamaru | Made with <span class="heart">❤️</span> by Claude</p>
+        </div>
+    </footer>
+    <script>
+    function parseExtensions() {
+        const input = document.getElementById('jsonInput').value;
+        const output = document.getElementById('output');
+        const error = document.getElementById('error');
+        output.innerHTML = '';
+        error.textContent = '';
+        let data;
+        try {
+            data = JSON.parse(input);
+        } catch (e) {
+            error.textContent = 'Fehler: Das eingegebene JSON ist ungültig!';
+            return;
+        }
+        if (!Array.isArray(data)) {
+            error.textContent = 'Fehler: Das JSON muss ein Array von Extensions sein!';
+            return;
+        }
+        if (data.length === 0) {
+            output.innerHTML = '<i>Keine Erweiterungen gefunden.</i>';
+            return;
+        }
+        // Tabelle bauen
+        let html = '<div class="table-wrapper"><table><thead><tr>' +
+            '<th>Name</th>' +
+            '<th>ID</th>' +
+            '<th>Version</th>' +
+            '<th>Typ</th>' +
+            '<th>Manifest-Version</th>' +
+            '<th>Aktiv?</th>' +
+            '<th>Berechtigungen</th>' +
+            '</tr></thead><tbody>';
+        data.forEach(ext => {
+            const v2warn = (ext.type === 'TYPE_EXTENSION' && ext.manifest_version === 2) ? 'row-v2-warning' : '';
+            html += `<tr class="${v2warn}">` +
+                '<td data-label="Name">' + (ext.name || '-') + '</td>' +
+                '<td data-label="ID"><code>' + (ext.id || '-') + '</code></td>' +
+                '<td data-label="Version">' + (ext.version || '-') + '</td>' +
+                '<td data-label="Typ">' + (ext.type || '-') + '</td>' +
+                '<td data-label="Manifest-Version">' + (ext.manifest_version || '-') + '</td>' +
+                '<td data-label="Aktiv?">' + (Array.isArray(ext.disable_reasons) && ext.disable_reasons.length === 0 ? 'Ja' : 'Nein') + '</td>' +
+                '<td data-label="Berechtigungen">' + getPermissionsSpoiler(ext.permissions) + '</td>' +
+                '</tr>';
+        });
+        html += '</tbody></table></div>';
+        output.innerHTML = html;
+    }
+    function getPermissions(perm) {
+        if (!perm || !perm.active) return '-';
+        let apis = perm.active.api && perm.active.api.length ? 'APIs: ' + perm.active.api.join(', ') : '';
+        let hosts = perm.active.explicit_hosts && perm.active.explicit_hosts.length ? '<br>Hosts: ' + perm.active.explicit_hosts.join(', ') : '';
+        let scripts = perm.active.scriptable_hosts && perm.active.scriptable_hosts.length ? '<br>Skript-Hosts: ' + perm.active.scriptable_hosts.join(', ') : '';
+        let res = [apis, hosts, scripts].filter(Boolean).join('');
+        return res || '-';
+    }
+    function getPermissionsSpoiler(perm) {
+        const perms = getPermissions(perm);
+        if (perms === '-') return '-';
+        return `<details><summary>Berechtigungen anzeigen</summary><div style='margin-top:0.5em;'>${perms}</div></details>`;
+    }
+    // Jahr im Footer setzen
+    document.addEventListener('DOMContentLoaded', function() {
+        var y = document.getElementById('current-year');
+        if(y) y.textContent = new Date().getFullYear();
+    });
+    </script>
+</body>
+</html> 
\ No newline at end of file
diff --git a/index.html b/index.html
index 132dc22..f667243 100644
--- a/index.html
+++ b/index.html
@@ -233,6 +233,10 @@
                 <h2 class="tool-title">URL Expander</h2>
                 <p class="tool-description">Erweitere gekürzte URLs und prüfe, wohin sie führen, bevor du sie besuchst</p>
             </a>
+            <a href="https://tools.ponywave.de/chrome_extensions_checker" class="tool-bubble">
+                <h2 class="tool-title">Chrome Extensions Checker</h2>
+                <p class="tool-description">Analysiere deine Chrome Extensions lokal und sicher.</p>
+            </a>
         </div>
     </div>
 	
diff --git a/sitemap.txt b/sitemap.txt
index 022f176..375b02d 100644
--- a/sitemap.txt
+++ b/sitemap.txt
@@ -26,4 +26,5 @@ https://tools.ponywave.de/gronkh_games
 https://tools.ponywave.de/url_expander
 https://tools.ponywave.de/minesweeper
 https://tools.ponywave.de/anime_graph
-https://tools.ponywave.de/favorites_viewer
\ No newline at end of file
+https://tools.ponywave.de/favorites_viewer
+https://tools.ponywave.de/chrome_extensions_checker
\ No newline at end of file
