Alternativa Somnoteu za Opera z licenco odprtokodnega vira

• Opera
  Vse platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari Internet Explorer BSD Windows Mobile PortableApps.com Chrome Blockstack Firefox OS Termux
• Open Source licenca
  Vsako dovoljenje Brezplačna licenca Open Source licenca Trgovsko dovoljenje