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CHICKEN Scheme vs GNU Guile: catalog facts
CHICKEN Scheme	GNU Guile
Free Free and open source under the BSD licence.	Free Free software under the LGPL 3.0 or later.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Compiles Scheme to portable C and native executables Supports R5RS and R7RS plus many extensions	Works both as a standalone language and an embeddable extension language Broad Scheme standards support, including many SRFIs
Compiled builds need a working C toolchain Scheme is a niche language with a smaller ecosystem than mainstream languages	Scheme syntax is unfamiliar to many programmers Smaller ecosystem than mainstream scripting languages
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: LGPL-3.0-or-later
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

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