diff --git a/config_example.json b/config_example.json
index 4eea3ba..cd6032b 100644
--- a/config_example.json
+++ b/config_example.json
@@ -206,5 +206,10 @@
     "password": "smtp_password",
     "from": "admin@example.com",
     "mail_reset_password": false
+  },
+  "recaptcha": {
+    "enabled": false,
+    "site_key": "YOUR_RECAPTCHA_V2_SITE_KEY",
+    "secret_key": "YOUR_RECAPTCHA_V2_SECRET_KEY"
   }
 }
\ No newline at end of file
diff --git a/src/inc/routes/register.mjs b/src/inc/routes/register.mjs
index 476d539..7ae1044 100644
--- a/src/inc/routes/register.mjs
+++ b/src/inc/routes/register.mjs
@@ -88,7 +88,23 @@ export default (router, tpl) => {
             return renderError("Passwords do not match.");
         }
 
-        // Registration Logic
+        // reCAPTCHA verification
+        if (cfg.recaptcha?.enabled && cfg.recaptcha?.secret_key) {
+            const rcToken = req.post['g-recaptcha-response'];
+            if (!rcToken) return renderError("Please complete the reCAPTCHA.");
+            try {
+                const verifyRes = await fetch('https://www.google.com/recaptcha/api/siteverify', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+                    body: new URLSearchParams({ secret: cfg.recaptcha.secret_key, response: rcToken, remoteip: ip })
+                });
+                const { success } = await verifyRes.json();
+                if (!success) return renderError("reCAPTCHA verification failed. Please try again.");
+            } catch (e) {
+                console.error('[REGISTER] reCAPTCHA error:', e.message);
+                return renderError("reCAPTCHA check failed. Please try again.");
+            }
+        }
         let activated = true;
         let activationToken = null;
 
diff --git a/src/index.mjs b/src/index.mjs
index 15121f0..a23742e 100644
--- a/src/index.mjs
+++ b/src/index.mjs
@@ -1092,6 +1092,8 @@ process.on('uncaughtException', err => {
     enable_userhall_image_upload: cfg.websrv.enable_userhall_image_upload !== false,
     abyss_enabled: cfg.websrv.abyss_enabled !== false,
     smtp_enabled: !!(cfg.smtp && cfg.smtp.enabled && cfg.smtp.mail_reset_password),
+    recaptcha_enabled: !!(cfg.recaptcha && cfg.recaptcha.enabled && cfg.recaptcha.site_key),
+    recaptcha_site_key: (cfg.recaptcha && cfg.recaptcha.site_key) || '',
     show_background_cfg: cfg.websrv.background !== false,
     allowed_mimes: Object.keys(cfg.mimes).concat([...new Set(Object.values(cfg.mimes))].map(ext => `.${ext}`)).join(','),
     mimes_json: JSON.stringify(cfg.mimes),
diff --git a/views/register.html b/views/register.html
index c9b3dfb..d6fb894 100644
--- a/views/register.html
+++ b/views/register.html
@@ -6,6 +6,14 @@
     <title>register</title>
     <link rel="icon" @if(custom_favicon && custom_favicon.length > 0)href="{{ custom_favicon }}"@else type="image/gif" href="/s/img/favicon.gif"@endif />
   <link href="/s/css/f0ckm.css" rel="stylesheet" />
+  @if(recaptcha_enabled)
+  <script>
+    function onRecaptchaPageReady() {
+      grecaptcha.render('page-register-recaptcha', { sitekey: '{{ recaptcha_site_key }}', theme: 'dark' });
+    }
+  </script>
+  <script src="https://www.google.com/recaptcha/api.js?onload=onRecaptchaPageReady&render=explicit" async defer></script>
+  @endif
 </head>
 <body type="login">
     <form class="login-form" method="post" action="/register" novalidate>
@@ -33,6 +41,9 @@
             <input type="checkbox" id="tos-page" name="tos" required />
             <label for="tos-page">@if(private_society){{ t('auth.tos_private_simple') }}@else{{ t('auth.tos_public') }} <a href="/terms" target="_blank" style="color: var(--accent); text-decoration: underline;">{{ t('auth.tos_terms') }}</a>, <a href="/rules" target="_blank" style="color: var(--accent); text-decoration: underline;">{{ t('auth.tos_rules') }}</a> {{ t('auth.tos_age') }}@endif</label>
         </p>
+        @if(recaptcha_enabled)
+        <div id="page-register-recaptcha" style="margin: 10px 0;"></div>
+        @endif
         <input type="submit" value="{{ t('auth.register_title') }}" />
         @endif
 
diff --git a/views/snippets/navbar.html b/views/snippets/navbar.html
index 6f5d2eb..f75d489 100644
--- a/views/snippets/navbar.html
+++ b/views/snippets/navbar.html
@@ -348,6 +348,9 @@
         <input type="checkbox" id="tos-modal" name="tos" required />
         <label for="tos-modal">@if(private_society){{ t('auth.tos_private') }}@else{{ t('auth.tos_public') }} <a href="/terms" target="_blank" style="color: var(--accent); text-decoration: underline;">{{ t('auth.tos_terms') }}</a>, <a href="/rules" target="_blank" style="color: var(--accent); text-decoration: underline;">{{ t('auth.tos_rules') }}</a> {{ t('auth.tos_age') }}@endif</label>
       </p>
+      @if(recaptcha_enabled)
+      <div id="modal-register-recaptcha" style="margin: 10px 0;"></div>
+      @endif
       <button type="submit">{{ t('auth.create_account') }}</button>
       <div style="text-align: center; margin-top: 20px;">
         <a href="#" id="register-to-login" style="font-size: 0.9em; color: var(--accent); text-decoration: underline;">{{ t('auth.back_to_login') }}</a>
@@ -391,3 +394,41 @@
 </div>
 
 @endif
+
+@if(recaptcha_enabled)
+<script>
+(function() {
+  var _rcModalWidgetId = null;
+  var _rcLoaded = false;
+
+  function renderModalRecaptcha() {
+    var el = document.getElementById('modal-register-recaptcha');
+    if (!el || !window.grecaptcha) return;
+    if (_rcModalWidgetId !== null) {
+      try { grecaptcha.reset(_rcModalWidgetId); } catch(e) {}
+    } else {
+      _rcModalWidgetId = grecaptcha.render(el, { sitekey: '{{ recaptcha_site_key }}', theme: 'dark' });
+    }
+  }
+
+  window.onRecaptchaModalReady = function() {
+    _rcLoaded = true;
+    renderModalRecaptcha();
+  };
+
+  document.addEventListener('DOMContentLoaded', function() {
+    var modal = document.getElementById('register-modal');
+    if (!modal) return;
+    var obs = new MutationObserver(function(mutations) {
+      mutations.forEach(function(m) {
+        if (m.attributeName === 'style') {
+          if (modal.style.display !== 'none' && _rcLoaded) renderModalRecaptcha();
+        }
+      });
+    });
+    obs.observe(modal, { attributes: true });
+  });
+})();
+</script>
+<script src="https://www.google.com/recaptcha/api.js?onload=onRecaptchaModalReady&render=explicit" async defer></script>
+@endif
