How did you validate your SaaS idea?

Talk with 20+ potential users and just listen to them speak about their roles, routines, pain points (don't pitch). Read the book "The Mom Test". A must in customer development.

By analyzing the market opportunity (Total Available Market, Serviceable Available Market & Serviceable Obtainable Market) and entry barriers. I also talk to people from different background to test the waters and see how they react towards the product. What about you?