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Steel Bank Common Lisp vs Racket: catalog facts
Steel Bank Common Lisp	Racket
Free Free and open source under a permissive licence.	Free Free and open source, supported by donations.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Compiles Common Lisp to fast native code Built-in debugger, profiler and coverage tool	Macros that let you build your own languages Cross-platform GUI framework included
Command-line environment; editor integration comes from tools such as Emacs and SLIME Platform support varies, so check the download page	Smaller ecosystem than mainstream languages Lisp-style syntax takes adjustment for newcomers
Downloadable app	Downloadable app
Open source	Open source
License: Public domain, MIT and BSD-style	License: Apache-2.0 OR MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.