Alternativas ao HowFile.com para PHP com licença gratuita

• PHP
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Safari PHP JavaScript BSD Windows Mobile Microsoft Office Outlook Raspberry Pi FreeBSD S60 Chrome Microsoft Edge Solaris Chrome Web Store Cloudron NetBSD OpenBSD Motti.NET (Programming Language)
• Licença gratuita
  Qualquer licença Licença gratuita Licença Open Source Licença comercial