NetSurf - Features its own layout engine. Site includes documentation, screen-shots, developer information, and downloads. (C) [RiscOS, GNU/Linux, AmigaOS, BeOS] Galeon - A GNOME web browser based on the gecko layout engine. Konqueror - A web browser with HTML 4.0 compliance, supporting Java applets, JavaScript, CSS1 and (partially) CSS2, as well as Netscape plugins. (C++) [GNU/Linux] zsync - An implementation of rsync over HTTP. Emacs/W3 - A web browser that runs under GNU Emacs. QtWeb - Designed to be portable, has private browsing features which prevent sensitive data from being written on the local disk. Website includes documentation, support forums and screenshots. (C++) [Windows] K-Meleon - A Windows web browser based on the gecko layout engine. Arachnida - An embedable web server and client written in C++. It uses the OpenSSL library for all connectivity and is therefore based on solid ground as far as support for cryptography and connectivity is concerned.