Spectre - Spectre is a web application to diff screenshots.
Applitools Eyes - Automated visual application testing and monitoring
Gold Fig - Version control for settings pages
recheck-web - recheck for web apps – change comparison tool with local Golden Masters, Git-like ignore syntax and "Unbreakable Selenium" tests.
iCompaas - Cloud infrastructure Compliance, CyberSecurity and Cost Saving as-a-Service
Imagium.io - Accelerate your software testing process with one of the most advanced visual comparison tool from the future