ĬEF 3 is a multi-process implementation based on the Chromium Content API and has performance similar to Google Chrome. It is no longer actively developed or supported. ĬEF 1 is a single-process implementation based on the Chromium WebKit API. Development of CEF 2 was abandoned after the appearance of the Chromium Content API. There are two versions of Chromium Embedded Framework: CEF 1 and CEF 3. It has many language bindings including C, C++, Go, Java, and Python. This enables developers to add web browsing functionality to their application, as well as the ability to use HTML, CSS, and JavaScript to create the application's user interface (or just portions of it).ĬEF runs on Linux, macOS, and Windows. The Chromium Embedded Framework ( CEF) is an open-source software framework for embedding a Chromium web browser within another application.