ariya/phantomjs

PhantomJS is a headless web browser, a browser that loads and renders web pages fully, including JavaScript, CSS, and graphics, but without displaying anything on screen. It solves the problem of needing a browser's capabilities (like running JavaScript or capturing how a page looks) in automated or server-side environments where no screen or graphical interface is available. Developers would use it for tasks like automated web testing (running tests against web pages without opening a real browser window), taking screenshots of web pages programmatically, scraping or interacting with pages that require JavaScript to load their content, and monitoring network performance by capturing how a page loads. It supports the standard DOM API that browsers use, so scripts written against it feel familiar to web developers. PhantomJS is scriptable with JavaScript, meaning you write scripts that tell it what pages to visit and what to do with them. It runs on Windows, Mac OS X, and Linux. The underlying engine is WebKit, the same rendering engine used by browsers like Safari. An important note: the README states that PhantomJS development has been suspended until further notice, meaning the project is no longer actively maintained. It is written in C++.