qutebrowser is a keyboard-driven, vim-like browser based on PyQt5 and QtWebKit. It was inspired by other browsers/add-ons like dwb and Vimperator/Pentadactyl. It features: all the basic functionality you'd expect (i.e. browsing, tabs, javascript, flash support, etc.), modal, vim-like input scheme, adblocking via /etc/hosts-like files, hinting (selecting links via keyboard), quickmarks (bookmarks with a label), and more.
