InVision Studio - The world’s most powerful screen design tool
GetScreenshot - Powerful & Affordable Screenshot API with a Zapier Integration
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Teampaper Snap - Take a snapshot, highlight key areas and share feedback
InVision Studio for UI Designers - Free video course on InVision Studio
Web to Image - API for taking screenshot of a webpage from URL or HTML