Interactive Common Lisp: An Enhanced REPL
I created this because sometimes I want more than rlwrap but less than emacs. icl aims to hit that middle sweet spot. It's a terminal application with context-aware auto-complete, an interactive object inspector, auto-indentation, syntax colouring, persistent history, and much more. It uses sly to communicate with the child lisp process and aims to be compatible with any sly-supporting implementation. I hope others find it useful!
Interactive Common Lisp: An Enhanced REPL launched on December 14, 2025 with 101 votes, #301 of 11,628 launches that month and more than 95% of that year's launches.
In plain words
Interactive Common Lisp is a terminal-based REPL for Common Lisp programming that bridges the gap between basic tools and full editors. It offers context-aware auto-complete, an interactive object inspector, auto-indentation, syntax highlighting, and persistent history. The tool communicates with Lisp processes through Sly and works with any Sly-supporting implementation, targeting developers who want enhanced features without the complexity of a full IDE.
written from the facts on this page · September 2026
From the sources
Interactive Common Lisp: an enhanced REPL. Contribute to atgreen/icl development by creating an account on GitHub.
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