Alternativas ao ErrorFeed para Software as a Service (SaaS) com licença de código aberto

• Software as a Service (SaaS)
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone iPad Web Self-Hosted Software as a Service (SaaS) PHP JavaScript Python Django Ruby Node.JS .NET Framework Ruby on Rails ASP.NET MVC fontconfig
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial