Whimsical Wireframes - Lightning fast wireframing with real-time collaboration.
Adobe XD - Adobe XD is an all-in-one UX/UI solution for designing websites, mobile apps and more.
Wireframe.cc - Sweet and simple online wireframing tool.
Userflows - Automatically generate user journeys
Wireframe for Figma - Lightning fast wireframing on figma (500+ elements)
ProtoPie - ProtoPie is the easiest tool used to turn your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, all the way to IoT.