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CHICKEN Scheme vs Racket: catalog facts
CHICKEN Scheme	Racket
Free Free and open source under the BSD licence.	Free Free and open source, supported by donations.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Compiles Scheme to portable C and native executables Supports R5RS and R7RS plus many extensions	Macros that let you build your own languages Cross-platform GUI framework included
Compiled builds need a working C toolchain Scheme is a niche language with a smaller ecosystem than mainstream languages	Smaller ecosystem than mainstream languages Lisp-style syntax takes adjustment for newcomers
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	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.