Open Source Headless Browsers

Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should) also be automated as well. If you want to create robust, browser-based regression automation suites and tests, scale and distribute scripts across many environments, then you want to use Selenium WebDriver, a collection of language specific bindings to drive a browser - the way it is meant to be driven. If you want to create quick bug reproduction scripts, create scripts to aid in automation-aided exploratory testing, then you want to use Selenium IDE; a Chrome and Firefox add-on that will do simple record-and-playback of interactions with the browser. If you want to scale by distributing and running tests on several machines and manage multiple environments from a central point.

CefSharp is an easy way to embed a full-featured standards-compliant web browser into your C# or VB.NET app. CefSharp has browser controls for WinForms and WPF apps, and a headless (offscreen) version for automation projects too. CefSharp is based on Chromium Embedded Framework, the open source version of Google Chrome. CefSharp embraces modern web standards, and supports HTML5, JavaScript, CSS3 and HTML5 audio/video elements. 3D content is supported via WebGL which uses OpenGL/DirectX for hardware accelerated rendering. CefSharp includes embedded modules for PDF, web page printing and the WebKit Inspector (developer tools). CefSharp has no external dependencies, and the full build of CefSharp only adds ~80 MB to your app. See the CefSharp.MinimalExample project for ready-to-compile minimal example apps built with CefSharp. Within the projects source there are more complicated example projects.

Splinter is a Python test framework for web applications, providing a simple and consistent API for browser automation and testing.

Playwright Java is the Java version of the Playwright testing and automation library, enabling reliable end-to-end testing for modern web applications.

The zeta.js library provides the facilities to run an instance of ZetaOffice integrated into your web site, allowing you to control it with JavaScript code via the LibreOffice UNO technology. Use cases range from an in-browser office suite that looks and feels just like its desktop counterpart, to fine-tuned custom text editing and spreadsheet capabilities embedded in your website, to a headless zetajs instance that does document conversion in the background.

WKZombie is a Swift framework for iOS/OSX to navigate within websites and collect data without the need of a User Interface or API, also known as a Headless browser. It can be used to run automated tests/snapshots and manipulate websites using Javascript. WKZombie is an iOS/OSX web-browser without a graphical user interface. It was developed as an experiment in order to familiarize myself with using functional concepts written in Swift 4. It incorporates WebKit (WKWebView) for rendering and hpple (libxml2) for parsing the HTML content. In addition, it can take snapshots and has rudimentary support for parsing/decoding JSON elements. Chaining asynchronous actions makes the code compact and easy to use.