Alternativer til ChatButton til JavaScript med gratis licens

• JavaScript
  Alle platforme Windows Mac Linux Chrome OS Android iPhone iPad Android Tablet Web Self-Hosted Safari Internet Explorer JavaScript Python BSD Xfce Wordpress PortableApps.com Shopify Django Cygwin MacPorts Chrome Tor Node.JS Joomla ZeroNet BigCommerce Drupal Perl XQuartz Plone Roundcube Alfresco Community Edition
• Gratis licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens