The features of GNU Emacs include Content-aware editing modes, including syntax coloring, for many file types. Complete built-in documentation, including a tutorial for new users. Full Unicode support …

GNU Emacs offered more features than Gosling Emacs, in particular a full-featured Lisp as its extension language, and soon replaced Gosling Emacs as the de facto Unix Emacs editor.

GNU Emacs is a powerful and versatile text editor and programming environment with extensive features, manuals, source code, FAQs, and related links.

Emacs is the advanced, extensible, customizable, self-documenting editor. This manual describes how to edit with Emacs and some of the ways to customize it; it corresponds to GNU Emacs version 27.2.

Part of the project to create a Unix that was FreeSoftware included a highly functional editor as well as some sort of Lisp system. The latest release of GNU Emacs is version 30.1 (2025), and is licensed …

Emacs helps you be productive by providing an integrated environment for many different kinds of tasks: All of the basic editing commands (and there are lots of them) are available no matter what you're …

While GNU Emacs is largely written in Emacs Lisp, it makes extensive use of natively compiled C code to improve performance. In addition to its own C code, it uses external libraries such as libxml2 for …

Emacs is a text editor designed for POSIX operating systems and available on Linux, BSD, macOS, Windows, and more. Users love Emacs because it features efficient commands for common but …

Emacs is an extensible, customizable, free/libre text editor – and more. At its core, it is a text editor, but it is also a platform for nearly any kind of text manipulation. You can use Emacs for writing code, …

The modern documentation website Emacs deserves. An extensible, customizable, free/libre text editor — and more. Authoritative reference for extending and programming Emacs. Organize your life in …