browserling - Live interactive cross-browser testing from your browser.
CrossBrowserTesting - Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.
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!
Max Inspect - Inspect Mac apps
Browsershots - Browsershots makes screenshots of your web design in different browsers.
LambdaTest - Perform Web Testing on 2000+ Browsers & OS