What is vim?

Vim is a free, widely-used text editor for editing code and plain text files. It is a modern upgrade to Vi, a classic editor found on UNIX systems, adding features like multi-level undo, syntax highlighting, spell checking, and a built-in help system. It runs on almost every operating system, including Windows, Mac, and Linux, and it works entirely from the keyboard, which lets fast typists navigate and edit files very quickly once they learn the commands. At its core, Vim is designed so that all editing happens through standard keyboard characters rather than menus or mouse clicks. This means you never need to reach for a mouse while working, which speeds things up considerably for touch typists. There is also a graphical interface available for those who want it, and users can map function keys to custom commands. Despite all the modern additions, it stays compatible with the original Vi editor, so anyone who learned Vi will feel comfortable right away. Anyone who writes code, configures servers, or works with plain text files regularly would use this. For example, a developer editing a large program might use it for syntax highlighting and block operations, while a system administrator might rely on it to tweak configuration files on a remote server. A one-hour interactive tutorial called vimtutor is included to help beginners get up to speed. Most Mac and Linux machines already have a basic version installed, but users typically download the full distribution to get all the extra features. The project is notable for being charityware, you can use and share it freely, but you are encouraged to donate to help orphans in Uganda. It is GPL-compatible and maintained primarily by Bram Moolenaar, who continues to fix bugs and add features with support from a community of contributors.