Templates by Email Monster - Hundreds of free, responsive email templates. Pick and edit.
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
SaaS Email Templates - Responsive HTML email templates for SaaS startups
Placeit - Generate realistic product shots in seconds
Email Template Generator - Email templates for your important relationships
Mediamodifier - Create beautiful designs and product mockups in seconds.