Alternativ till NumSync för JavaScript med gratis licens

• JavaScript
  Alla plattformar Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox PHP JavaScript Windows Mobile Microsoft Office Outlook Raspberry Pi Chrome Cloudron Flowinity Motti.NET (Programming Language)
• Gratis licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens