MicroEMACS is a small, portable Emacs-like text editor originally written by Dave Conroy in 1985, and further developed and maintained by Daniel M. Lawrence (1958-2010). MicroEMACS has been ported to many operating systems, including MS-DOS, Microsoft Windows, VAX/VMS, Atari ST, AmigaOS and various Unix-like operating systems.
Variants of MicroEMACS also exist, such as MicroGNUEmacs (later renamed mg), a more GNU Emacs-compatible editor. Many relationships to vi can also be found in MicroEMACS. The vi clone vile was based on an older version of MicroEMACS.
Linus Torvalds uses a customized version of uEmacs/PK 4.0.15. This version was adapted by Petri H. Kutvonen from MicroEMACS 3.9e.