qutebrowser is a keyboard-driven web browser with a minimal interface and Vim-like controls. By default it uses QtWebEngine, which is based on Chromium; QtWebKit is supported but not recommended because of known security issues. The browser offers an optional ad blocker using ABP syntax, an optional pdf.js viewer for PDFs and a view-source mode with syntax highlighting. It runs on Linux, Windows, macOS and BSD systems and is written in Python using PyQt.
qutebrowser is free software under the GPL, version 3 or later. Its primary author, Freya Bruhin, maintains the project part-time, funded by donations, together with hundreds of contributors. No commercial company or foreign parent stands behind it. Because you install the browser locally and the full source code is public, your browsing data stays on your own device and the code can be independently reviewed. The rendering engine does come from Chromium, which some organisations may want to take into account.