diff --git a/api/react_message.php b/api/react_message.php
index 377980f..469a7e5 100644
--- a/api/react_message.php
+++ b/api/react_message.php
@@ -10,49 +10,12 @@ $input = json_decode(file_get_contents('php://input'), true) ?: $_POST;
 $message_id = $input['message_id'] ?? null;
 $emoji = $input['emoji'] ?? null;
 
-// Helper: normalize emoji aliases (e.g., 'corazon' -> '❤️') and decode HTML entities
-function normalize_emoji($s) {
-    if (!$s) return $s;
-    // decode numeric HTML entities like ❤ etc.
-    $s = html_entity_decode($s, ENT_QUOTES | ENT_HTML5, 'UTF-8');
-    $orig = $s;
-    $s_trim = trim(mb_strtolower($s, 'UTF-8'));
-
-    $map = [
-        'corazon' => '❤️', 'heart' => '❤️', '<3' => '❤️',
-        'like' => '👍', 'thumbsup' => '👍', 'thumbs_up' => '👍', '👍' => '👍',
-        'laugh' => '😂', 'risa' => '😂', 'joy' => '😂',
-        'wow' => '😮', 'surprised' => '😮',
-        'sad' => '😢', 'triste' => '😢',
-        'clap' => '👏', 'applause' => '👏',
-        'party' => '🎉', 'celebrate' => '🎉',
-        'fire' => '🔥',
-        'pray' => '🙏', 'thanks' => '🙏'
-    ];
-
-    // If the string looks like an alias (letters, dashes, underscores, or short), map it
-    $key = preg_replace('/[^a-z0-9_\-]/u', '', $s_trim);
-    if (isset($map[$key])) return $map[$key];
-
-    // If the string itself contains an emoji (most common case), return the first emoji-like char or the original
-    // A simple heuristic: keep any non-ASCII or known emoji utf ranges
-    if (preg_match('/[\x{1F300}-\x{1F6FF}\x{1F900}-\x{1F9FF}\x{2600}-\x{26FF}\x{2700}-\x{27BF}]/u', $orig, $m)) {
-        return $m[0];
-    }
-
-    // fallback to original trimmed string
-    return trim($orig);
-}
-
 if (!$message_id || !$emoji) {
     http_response_code(400);
     echo json_encode(['success' => false, 'error' => 'Parámetros faltantes: message_id, emoji']);
     exit;
 }
 
-// Normalize emoji early
-$emoji = normalize_emoji($emoji);
-
 try {
     $db = Database::getInstance();
 
diff --git a/conversations.php b/conversations.php
index 861e065..73d9233 100644
--- a/conversations.php
+++ b/conversations.php
@@ -1240,22 +1240,7 @@
                     const t = ev.target;
                     if (t && t.dataset && t.dataset.emoji) {
                         ev.stopPropagation();
-                        // Normalize alias -> emoji on client side too
-                        const alias = t.dataset.emoji;
-                        const clientEmojiMap = {
-                            'corazon': '❤️','heart':'❤️','<3':'❤️',
-                            'like':'👍','thumbs_up':'👍','thumbsup':'👍',
-                            'laugh':'😂','risa':'😂','joy':'😂',
-                            'wow':'😮','surprised':'😮',
-                            'sad':'😢','triste':'😢',
-                            'clap':'👏','applause':'👏',
-                            'party':'🎉','celebrate':'🎉',
-                            'fire':'🔥','pray':'🙏'
-                        };
-                        let emoji = alias;
-                        const key = (alias || '').toLowerCase().replace(/[^a-z0-9_\-]/g,'');
-                        if (clientEmojiMap[key]) emoji = clientEmojiMap[key];
-
+                        const emoji = t.dataset.emoji;
                         const mid = this._pendingReactionMessage;
                         if (!mid) return;
                         try {
@@ -2828,34 +2813,14 @@
                     if (!container) return;
                     const el = container.querySelector(`[data-message-id="${messageId}"]`);
                     if (!el) return;
-
-                    // normalize emoji aliases (fallback mapping)
-                    const clientEmojiMap = {
-                        'corazon': '❤️','heart':'❤️','<3':'❤️',
-                        'like':'👍','thumbs_up':'👍','thumbsup':'👍',
-                        'laugh':'😂','risa':'😂','joy':'😂',
-                        'wow':'😮','surprised':'😮','sad':'😢','triste':'😢',
-                        'clap':'👏','party':'🎉','fire':'🔥','pray':'🙏'
-                    };
-
-                    let display = emoji || '';
-                    if (display && /^[a-z0-9_\-]+$/i.test(display)) {
-                        const key = display.toLowerCase();
-                        if (clientEmojiMap[key]) display = clientEmojiMap[key];
-                    } else {
-                        // if it's a longer string, attempt to extract the first emoji char
-                        const m = (display || '').match(/[\x{1F300}-\x{1F6FF}\x{1F900}-\x{1F9FF}\x{2600}-\x{26FF}\x{2700}-\x{27BF}]/u);
-                        if (m && m[0]) display = m[0];
-                    }
-
                     let badge = el.querySelector('.reaction-badge');
-                    if (display) {
+                    if (emoji) {
                         if (badge) {
-                            badge.textContent = display;
+                            badge.textContent = emoji;
                         } else {
                             const div = document.createElement('div');
                             div.className = 'reaction-badge';
-                            div.textContent = display;
+                            div.textContent = emoji;
                             const bubble = el.querySelector('.message-bubble');
                             if (bubble) bubble.insertBefore(div, bubble.querySelector('.message-actions'));
                         }