Promo Instant Image Resizer - Automatically optimize images for web & social media (free!)
Page Weight - Find and fix heavy images on your website
Responsive Image Breakpoint Generator - Turn one image into the ideal set of per-device images
Sitebeam - Spelling mistakes, SEO, load speed, social media, code, W3C, accessibility & more in one tool.
Placid - Use Placid to auto-generate images, videos & PDFs from reusable templates
Website Grader - Grade your website's strengths and weaknesses in seconds.