diff --git a/advancedcontentfilter/lang/es/messages.po b/advancedcontentfilter/lang/es/messages.po
new file mode 100644
index 00000000..48f90870
--- /dev/null
+++ b/advancedcontentfilter/lang/es/messages.po
@@ -0,0 +1,167 @@
+# ADDON advancedcontentfilter
+# Copyright (C)
+# This file is distributed under the same license as the Friendica advancedcontentfilter addon package.
+# 
+# 
+# Translators:
+# Albert, 2018
+# Yasmine A <yasmine.elachkar@gmail.com>, 2018
+# Julio Cova, 2019
+# Boris Daniel Martinez Millàn <borisdanielmartinezmillan@gmail.com>, 2021
+# 
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: \n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2021-02-01 18:15+0100\n"
+"PO-Revision-Date: 2018-05-24 06:41+0000\n"
+"Last-Translator: Boris Daniel Martinez Millàn <borisdanielmartinezmillan@gmail.com>, 2021\n"
+"Language-Team: Spanish (https://www.transifex.com/Friendica/teams/12172/es/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: es\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#: src/middlewares.php:49
+msgid "Method not found"
+msgstr "Método no encontrado"
+
+#: advancedcontentfilter.php:136
+#, php-format
+msgid "Filtered by rule: %s"
+msgstr "Filtrado por la regla: %s"
+
+#: advancedcontentfilter.php:150 advancedcontentfilter.php:207
+msgid "Advanced Content Filter"
+msgstr "Filtro de contenido avanzado"
+
+#: advancedcontentfilter.php:206
+msgid "Back to Addon Settings"
+msgstr "Volver a Ajustes de Complemento"
+
+#: advancedcontentfilter.php:208
+msgid "Add a Rule"
+msgstr "Añadir una regla"
+
+#: advancedcontentfilter.php:209
+msgid "Help"
+msgstr "Ayuda"
+
+#: advancedcontentfilter.php:210
+msgid ""
+"Add and manage your personal content filter rules in this screen. Rules have"
+" a name and an arbitrary expression that will be matched against post data. "
+"For a complete reference of the available operations and variables, check "
+"the help page."
+msgstr ""
+
+#: advancedcontentfilter.php:211
+msgid "Your rules"
+msgstr "Tus reglas"
+
+#: advancedcontentfilter.php:212
+msgid ""
+"You have no rules yet! Start adding one by clicking on the button above next"
+" to the title."
+msgstr ""
+"¡Aún no tienes reglas! Empieza añadiendo una haciendo clic en el botón de "
+"arriba al lado del título. "
+
+#: advancedcontentfilter.php:213
+msgid "Disabled"
+msgstr "Desactivado"
+
+#: advancedcontentfilter.php:214
+msgid "Enabled"
+msgstr "Activado"
+
+#: advancedcontentfilter.php:215
+msgid "Disable this rule"
+msgstr "Desactivar esta regla"
+
+#: advancedcontentfilter.php:216
+msgid "Enable this rule"
+msgstr "Activar esta regla"
+
+#: advancedcontentfilter.php:217
+msgid "Edit this rule"
+msgstr "Editar esta regla"
+
+#: advancedcontentfilter.php:218
+msgid "Edit the rule"
+msgstr "Editar regla"
+
+#: advancedcontentfilter.php:219
+msgid "Save this rule"
+msgstr "Guardar esta regla"
+
+#: advancedcontentfilter.php:220
+msgid "Delete this rule"
+msgstr "Borrar esta regla"
+
+#: advancedcontentfilter.php:221
+msgid "Rule"
+msgstr "Regla"
+
+#: advancedcontentfilter.php:222
+msgid "Close"
+msgstr "Cerrar"
+
+#: advancedcontentfilter.php:223
+msgid "Add new rule"
+msgstr "Agregar nueva regla"
+
+#: advancedcontentfilter.php:224
+msgid "Rule Name"
+msgstr "Nombre de la regla"
+
+#: advancedcontentfilter.php:225
+msgid "Rule Expression"
+msgstr "Expresión de la regla"
+
+#: advancedcontentfilter.php:226
+msgid "Cancel"
+msgstr "Cancelar"
+
+#: advancedcontentfilter.php:293 advancedcontentfilter.php:304
+#: advancedcontentfilter.php:315 advancedcontentfilter.php:349
+#: advancedcontentfilter.php:378 advancedcontentfilter.php:399
+msgid "You must be logged in to use this method"
+msgstr "Debe estar registrado para usar este método"
+
+#: advancedcontentfilter.php:319 advancedcontentfilter.php:353
+#: advancedcontentfilter.php:382
+msgid "Invalid form security token, please refresh the page."
+msgstr ""
+"Token de seguridad de formulario inválido, por favor actualice la página."
+
+#: advancedcontentfilter.php:331
+msgid "The rule name and expression are required."
+msgstr "El nombre y la expresión de la regla son obligatorios."
+
+#: advancedcontentfilter.php:343
+msgid "Rule successfully added"
+msgstr "Regla añadida exitosamente"
+
+#: advancedcontentfilter.php:357 advancedcontentfilter.php:386
+msgid "Rule doesn't exist or doesn't belong to you."
+msgstr "La regla no existe o no te pertenece."
+
+#: advancedcontentfilter.php:372
+msgid "Rule successfully updated"
+msgstr "Regla actualizada exitosamente"
+
+#: advancedcontentfilter.php:393
+msgid "Rule successfully deleted"
+msgstr "Regla eliminada exitosamente"
+
+#: advancedcontentfilter.php:403
+msgid "Missing argument: guid."
+msgstr "Algumento faltante: guía"
+
+#: advancedcontentfilter.php:411
+#, php-format
+msgid "Unknown post with guid: %s"
+msgstr "Publicacion desconocida con la guía: %s"
diff --git a/advancedcontentfilter/lang/es/strings.php b/advancedcontentfilter/lang/es/strings.php
new file mode 100644
index 00000000..9f31a017
--- /dev/null
+++ b/advancedcontentfilter/lang/es/strings.php
@@ -0,0 +1,40 @@
+<?php
+
+if(! function_exists("string_plural_select_es")) {
+function string_plural_select_es($n){
+	$n = intval($n);
+	return ($n != 1);;
+}}
+;
+$a->strings["Method not found"] = "Método no encontrado";
+$a->strings["Filtered by rule: %s"] = "Filtrado por la regla: %s";
+$a->strings["Advanced Content Filter"] = "Filtro de contenido avanzado";
+$a->strings["Back to Addon Settings"] = "Volver a Ajustes de Complemento";
+$a->strings["Add a Rule"] = "Añadir una regla";
+$a->strings["Help"] = "Ayuda";
+$a->strings["Add and manage your personal content filter rules in this screen. Rules have a name and an arbitrary expression that will be matched against post data. For a complete reference of the available operations and variables, check the help page."] = "";
+$a->strings["Your rules"] = "Tus reglas";
+$a->strings["You have no rules yet! Start adding one by clicking on the button above next to the title."] = "¡Aún no tienes reglas! Empieza añadiendo una haciendo clic en el botón de arriba al lado del título. ";
+$a->strings["Disabled"] = "Desactivado";
+$a->strings["Enabled"] = "Activado";
+$a->strings["Disable this rule"] = "Desactivar esta regla";
+$a->strings["Enable this rule"] = "Activar esta regla";
+$a->strings["Edit this rule"] = "Editar esta regla";
+$a->strings["Edit the rule"] = "Editar regla";
+$a->strings["Save this rule"] = "Guardar esta regla";
+$a->strings["Delete this rule"] = "Borrar esta regla";
+$a->strings["Rule"] = "Regla";
+$a->strings["Close"] = "Cerrar";
+$a->strings["Add new rule"] = "Agregar nueva regla";
+$a->strings["Rule Name"] = "Nombre de la regla";
+$a->strings["Rule Expression"] = "Expresión de la regla";
+$a->strings["Cancel"] = "Cancelar";
+$a->strings["You must be logged in to use this method"] = "Debe estar registrado para usar este método";
+$a->strings["Invalid form security token, please refresh the page."] = "Token de seguridad de formulario inválido, por favor actualice la página.";
+$a->strings["The rule name and expression are required."] = "El nombre y la expresión de la regla son obligatorios.";
+$a->strings["Rule successfully added"] = "Regla añadida exitosamente";
+$a->strings["Rule doesn't exist or doesn't belong to you."] = "La regla no existe o no te pertenece.";
+$a->strings["Rule successfully updated"] = "Regla actualizada exitosamente";
+$a->strings["Rule successfully deleted"] = "Regla eliminada exitosamente";
+$a->strings["Missing argument: guid."] = "Algumento faltante: guía";
+$a->strings["Unknown post with guid: %s"] = "Publicacion desconocida con la guía: %s";