Atomic - The fastest way to design beautiful interactions
Promo Instant Image Resizer - Automatically optimize images for web & social media (free!)
Lean Service Creation - Open source design process and toolkit
Responsive Image Breakpoint Generator - Turn one image into the ideal set of per-device images
FeaturePeek - Collaborate on in-progress website implementations. FeaturePeek allows your team to collect feedback on your front-end during the implementation phase of development.
Placid - Use Placid to auto-generate images, videos & PDFs from reusable templates