The usage share of web browsers is dominated by a few mature applications. Chrome, Internet Explorer, Firefox, Safari and Opera account for around 95% of all desktop web browsing activity. However, there are a myriad of other web browsers that are worth investigating.
The purpose of this article is to highlight interesting open source web browsers that are in a very early stage of development. They have very different target audiences. Fifth is based on the WebKitFLTK web library, and seeks to retain the best features of Opera, but add a new few features. Dooscape uses the QtWebKit as its engine, and offers an intuitive interface. The latest major release of Emacs includes a built-in web browser, eww. The final web browser featured in this article is also distinct. Breach is a modular browser written entirely in Javascript. All four web browsers are released under an open source license.