Wireframer
Cool text for your wireframes
6 Alternatives To Wireframer
Artboard Studio for Figma
A plugin to create mockups right in Figma
Frrames Mockups
Free vector window mockups for your presentations
Live Mockups
Create engaging Video Mockups for free
Mockup World
The best free Mockups from the Web
Vector Mockups Library
Free collection of mockups for Sketch, Figma & Photoshop