Ghost Inspector - Easily create automated browser tests for your websites and web apps. Ensure everything works and looks the way it should. No coding required. 14 day free trial!
Monkey Test It - Primate powered algorithms that scan your site for common bugs and SEO mistakes.
PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.
GoodUI Evidence - People's A/B test results that show which UI ideas work best