diff --git a/doc/geany.txt b/doc/geany.txt
index 69b4dc2c61..83081aece4 100644
--- a/doc/geany.txt
+++ b/doc/geany.txt
@@ -3349,6 +3349,8 @@ Close                           Ctrl-W  (C)               Closes the current fil
 
 Reload file                     Ctrl-R  (C)               Reloads the current file.
 
+Reload all                                                Reloads all open files. If the reload will not be 'undo'-able and changes that will be lost are detected (unsaved or saved) the reload will be confirmed, otherwise the reload will proceed without confirmation.
+
 Print                           Ctrl-P  (C)               Prints the current file.
 
 Quit                            Ctrl-Q  (C)               Quits Geany.
diff --git a/src/callbacks.c b/src/callbacks.c
index 93900b0d05..2e13d6d039 100644
--- a/src/callbacks.c
+++ b/src/callbacks.c
@@ -335,6 +335,43 @@ void on_toolbutton_reload_clicked(GtkAction *action, gpointer user_data)
 	document_reload_prompt(doc, NULL);
 }
 
+/* reload all files */
+void on_reload_all(GtkAction *action, gpointer user_data)
+{
+	guint i;
+	gint cur_page = gtk_notebook_get_current_page(GTK_NOTEBOOK(main_widgets.notebook));
+
+	if (!file_prefs.keep_edit_history_on_reload)
+	{
+		GeanyDocument *doc;
+		foreach_document(i)
+		{
+			doc = documents[i];
+			if (doc->changed || document_can_undo(doc) || document_can_redo(doc))
+			{
+				if (dialogs_show_question_full(NULL, _("_Reload"), GTK_STOCK_CANCEL,
+					_("Changes detected, reloading all will lose any changes and history."),
+					_("Are you sure you want to reload all files?")))
+				{
+					break; // break the loop and continue with reloading below
+				}
+				else
+				{
+					return; // cancel reloading
+				}
+			}
+		}
+	}
+
+	foreach_document(i)
+	{
+		if (! (documents[i]->file_name == NULL))
+			document_reload_force(documents[i], documents[i]->encoding);
+	}
+
+	gtk_notebook_set_current_page(GTK_NOTEBOOK(main_widgets.notebook), cur_page);
+}
+
 
 static void on_change_font1_activate(GtkMenuItem *menuitem, gpointer user_data)
 {
diff --git a/src/callbacks.h b/src/callbacks.h
index 3cd4ac0455..4e9ac16d0f 100644
--- a/src/callbacks.h
+++ b/src/callbacks.h
@@ -98,6 +98,8 @@ void on_find_in_files1_activate(GtkMenuItem *menuitem, gpointer user_data);
 
 void on_toolbutton_reload_clicked(GtkAction *action, gpointer user_data);
 
+void on_reload_all(GtkAction *action, gpointer user_data);
+
 void on_go_to_line_activate(GtkMenuItem *menuitem, gpointer user_data);
 
 void on_help1_activate(GtkMenuItem *menuitem, gpointer user_data);
diff --git a/src/keybindings.c b/src/keybindings.c
index b0837158dd..e55f40ea6b 100644
--- a/src/keybindings.c
+++ b/src/keybindings.c
@@ -355,6 +355,8 @@ static void init_default_kb(void)
 		"menu_close_all1");
 	add_kb(group, GEANY_KEYS_FILE_RELOAD, NULL,
 		GDK_KEY_r, GEANY_PRIMARY_MOD_MASK, "menu_reloadfile", _("Reload file"), "menu_reload1");
+	add_kb(group, GEANY_KEYS_FILE_RELOAD_ALL, NULL,
+		0, 0, "menu_reloadall", _("Reload all files"), NULL);
 	add_kb(group, GEANY_KEYS_FILE_OPENLASTTAB, NULL,
 		0, 0, "file_openlasttab", _("Re-open last closed tab"), NULL);
 	add_kb(group, GEANY_KEYS_FILE_QUIT, NULL,
@@ -1476,6 +1478,9 @@ static gboolean cb_func_file_action(guint key_id)
 		case GEANY_KEYS_FILE_RELOAD:
 			on_toolbutton_reload_clicked(NULL, NULL);
 			break;
+		case GEANY_KEYS_FILE_RELOAD_ALL:
+			on_reload_all(NULL, NULL);
+			break;
 		case GEANY_KEYS_FILE_PRINT:
 			on_print1_activate(NULL, NULL);
 			break;
diff --git a/src/keybindings.h b/src/keybindings.h
index 6f9ecae6d7..0b7f6c09a0 100644
--- a/src/keybindings.h
+++ b/src/keybindings.h
@@ -275,6 +275,8 @@ enum GeanyKeyBindingID
 	GEANY_KEYS_EDITOR_DELETELINETOBEGINNING,	/**< Keybinding. */
 	GEANY_KEYS_DOCUMENT_STRIPTRAILINGSPACES,	/**< Keybinding.
 												 * @since 1.34 (API 238) */
+	GEANY_KEYS_FILE_RELOAD_ALL,					/**< Keybinding.
+												 * @since 1.38 (API 240) */
 	GEANY_KEYS_COUNT	/* must not be used by plugins */
 };
 
diff --git a/src/plugindata.h b/src/plugindata.h
index 079f5f7e3a..6e4dc2ee6b 100644
--- a/src/plugindata.h
+++ b/src/plugindata.h
@@ -58,7 +58,7 @@ G_BEGIN_DECLS
  * @warning You should not test for values below 200 as previously
  * @c GEANY_API_VERSION was defined as an enum value, not a macro.
  */
-#define GEANY_API_VERSION 239
+#define GEANY_API_VERSION 240
 
 /* hack to have a different ABI when built with different GTK major versions
  * because loading plugins linked to a different one leads to crashes.