Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Justinmind - Define awesome experiences through wireframes & prototypes.
Sketch - Professional digital design for Mac.
Invision - Prototyping and collaboration for design teams
avocode - Centralize design collaboration, version control, prototyping, feedback, and developer hand-off with Avocode. Work on any design, anywhere, with anyone. Sign up free 👉 https://avocode.com/.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.