Alternativas ao Mikidown para Chrome OS com licença comercial

• Chrome OS
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Safari PHP BSD Windows Mobile PortableApps.com Chrome Gmail Blockstack Cloudron Termux
• Licença comercial
  Qualquer licença Licença gratuita Licença Open Source Licença comercial