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Pros
Pro Can be used without additional software on any browser
Doesn't need any additional software or browser extensions to be installed on any device. If every device is pointed to the IP address that it provides it will automatically reload that page on every file change.
Pro Testing page preset with a lot of useful information
Ghostlab offers a testing page which when opened displays a lot of useful information. Such as, but not limited to: viewport width and height, user agent string, pixel ratio etc...
Pro Synchronizes scrolls, clicks, reloads and form input across all connected clients
Every time the page is reloaded on a device, it's automatically reloaded on every other device connected. It also registers scrolls, form inputs and clicks across different devices and automatically synchronizes them to each connected device.
Pro Cross-browser and cross-device live reloading
Ghostlab offers developers the opportunity to test their site in multiple browsers and devices at the same time. Once the Ghostlab server is deployed, it offers an IP address running on port 8080 which automatically reloads on every file change.
Pro Easy setup
Setting up GhostLab is very easy, by simply dragging a URL or a local folder it creates automatically a new site entry and is ready to work.
It can then be named or choose the specified file extensions that need to be watched.
Pro Remote inspection of code on different devices.
Ghostlab utilizes weinre, an open-source remote debugger to remotely inspect the code on different devices. By double clicking the device name that needs to be inspected, and clicking the 'Debug' button, Ghostlab opens a Chrome inspector which can inspect any item in the page of the device and manipulate the CSS and HTML.
Cons
Con No Linux version
Ghostlab is available only for Windows and Mac, there is no Linux version. At least for the time being.
Con Not free
Ghostlab is proprietary and not free. It costs $49. Though there is a free 7-days trial.