Nyxt — The Keyboard-Driven Hacker's Browser in Common Lisp

Introduction

Nyxt is a web browser built for keyboard-driven workflows and deep extensibility. Unlike traditional browsers that prioritize mouse interaction, Nyxt treats browsing as a programmable activity where every action can be scripted, chained, and customized through Common Lisp.

What Nyxt Does

• Provides Emacs-style and Vim-style keybinding modes for keyboard navigation
• Renders web pages using WebKitGTK or WebEngine backends
• Offers a command prompt (similar to Emacs M-x) for executing any browser action
• Supports tree-style history with full-text search across visited pages
• Allows live customization via an integrated Common Lisp REPL

Architecture Overview

Nyxt is written entirely in Common Lisp with a modular architecture. The browser core manages buffers (tabs), modes, and commands while delegating rendering to platform-specific backends (WebKitGTK on Linux, WebEngine elsewhere). Configuration is native Lisp code loaded at startup, and users can redefine any function or class at runtime via the REPL.

Self-Hosting & Configuration

• Install via system package manager or download pre-built binaries
• Configuration lives in ~/.config/nyxt/config.lisp as plain Lisp code
• Define custom keybindings by creating or modifying mode classes
• Install extensions by adding Lisp systems to the ASDF load path
• Configure proxy, search engines, and download paths in the config file

Key Features

• Built-in ad blocker with customizable filter lists
• Smart bookmark system with tags and full-text search
• Password manager integration (KeePassXC, Pass, 1Password)
• Cloned buffer and session restoration across restarts
• Programmable scripting for automating repetitive browsing tasks

Comparison with Similar Tools

• Qutebrowser — Vim-keybindings browser in Python but less extensible
• Vimb — Minimal Vim-like browser but lacks programmability
• Luakit — Lua-scriptable browser, lighter but fewer features
• Firefox with Vimium — Extension-based approach limited by browser sandbox
• Emacs EWW — Text-mode browser inside Emacs, no JavaScript support

FAQ

Q: Does Nyxt support browser extensions like Firefox? A: Nyxt does not use WebExtensions. Instead, it provides native Lisp extensibility which offers deeper integration than sandboxed extensions.

Q: Can Nyxt render modern JavaScript-heavy websites? A: Yes. It uses WebKitGTK which is a full modern rendering engine with JavaScript support.

Q: Do I need to know Lisp to use Nyxt? A: No. Nyxt works out of the box with sensible defaults. Lisp knowledge is only needed for advanced customization.

Q: How is Nyxt different from a terminal browser? A: Nyxt is a full graphical browser with modern rendering capabilities. It simply prioritizes keyboard interaction and programmability over mouse-driven UI.

Sources

• https://github.com/atlas-engineer/nyxt
• https://nyxt-browser.com