Ghostlab is a cross-platform development application that makes it easy to test web applications and websites. It provides powerful tools to synchronize interactions across multiple browsers and devices, allowing developers to instantly test their projects on multiple platforms. Ghostlab comes with a built-in server, so no additional setup is required. It also allows users to debug JavaScript code and network requests, as well as test websites with different bandwidth, latency, and network conditions. Ghostlab is a great tool for developers who need to quickly test their projects across multiple environments.
Suspended since November 2015 Edge Reflow (preview), Edge Inspect and Edge Animate are no longer under active development: https://blogs.adobe.com/edge/2015/11/30/update-about-edge-tools-services/