GNU Emacs Reference Card
I can’t live without this.
GNU Emacs is a highly customizable and extensible text editor in the GNU Project. Developed by Richard Stallman and his Free Software Foundation (FSF) team, GNU Emacs is known for its powerful features and flexibility, making it a popular choice among programmers, writers, and other users who work extensively with text.
Emacs offers various functionalities, including syntax highlighting, code editing features, integrated development environment (IDE) capabilities, support for different programming languages, and powerful text manipulation tools. It provides an extensive set of built-in commands and lets users define their custom commands and keybindings.
One of the defining features of Emacs is its use of Emacs Lisp, a dialect of the Lisp programming language, as its extension and customization language. This allows users to modify and extend the editor to suit their needs, making Emacs highly customizable and adaptable.
GNU Emacs is available on various platforms, including Windows, macOS, and Linux, and it has a large and active community of users and developers who contribute to its ongoing development and maintenance.