Files

Lem – general-purpose editor/IDE

Lem is a general-purpose text editor and IDE written in Common Lisp.

It is designed to be highly extensible and lets users develop and apply extensions while the editor is running. The project has its own approach rather than simply imitating Emacs or Vim, and aims to provide a consistent interface together with real-time interaction between code and its execution state.

This is free and open source software.

Key Features

  • General-purpose text editor and IDE written in Common Lisp.
  • Highly extensible architecture with extensions that can take effect immediately.
  • Supports terminal, webview, and SDL2 frontends.
  • Designed to show the results of executed code inline without interrupting editing flow.
  • Provides real-time visualization of running code.
  • Offers a consistent and customizable interface.

Website: github.com/lem-project/lem
Support:
Developer: lem-project
License: MIT License

Lem in action

Lem is written in Common Lisp. Learn Lisp with our recommended free books and free tutorials.


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Read our verdict in the software roundup.


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