Implementations

Bigloo

-sop.inria.fr

System with one goal: enable Scheme-based programming style where C(++) is usually needed; makes Scheme practical via features found in most traditional languages but not Scheme an…

78 visits Oct 19, 2025 Details

Chez Scheme

scheme.com

Reliable, high performance implementation, by Cadence Research Systems. Free version exists. [Commercial]

261 visits Mar 31, 2024 Details

Chicken

call-with-current-continuation.org

A Scheme compiler which compiles a subset of R5RS into C. Uses the ideas presented in Baker's paper "Cheney on the MTA". It is highly portable, reasonably efficient and makes i…

401 visits Oct 10, 2024 Details

CMU AI Repository Free/Shareware Scheme Implementations

cs.cmu.edu

Yet more Scheme implementations from the CMU AI Repository. Many of these are also available from the Indiana University Scheme Repository.

223 visits Sep 3, 2024 Details

DrScheme

drscheme.org

Full Scheme programming environment for Macintosh, many Unixes, Windows. Has module and object systems, platform-independent graphics. Ideal for beginners; one of the major design …

271 visits Oct 8, 2024 Details

Elk Scheme: The Extension Language Kit

sam.zoy.org

New site. Embeddable, reusable extension language subsystem for programs coded in C/C++, also a useful standalone Scheme implementation with interfaces to POSIX, Unix, X11.

364 visits Jul 27, 2025 Details

Elk: Scheme-based Extension Language Kit

-rn.informatik.uni-bremen.de

Old site, last update 1997. Embeddable, reusable extension language subsystem for applications written in C/C++, also a useful standalone Scheme implementation with interfaces to P…

103 visits Apr 3, 2024 Details

Gambit

iro.umontreal.ca

A portable, high-performance implementation of Scheme based on an optimizing compiler by Marc Feeley. Developed at University of Montreal.

413 visits Apr 6, 2024 Details

Indiana University Scheme Repository: Implementations

cs.indiana.edu

Even more Scheme implementations freely available from the Indiana U. repository.

400 visits Feb 8, 2024 Details

Infer Project

cs.indiana.edu

Statically-typed Scheme dialect, written in Infer, combines many of the best features of Scheme and ML. NSF funded.

301 visits Dec 1, 2024 Details

Inlab Scheme

inlab.de

A commercial Scheme which is freely available for non-commercial use on Linux and FreeBSD. It has support for several features like bitmap/greymap processing and can be used as a …

98 visits Nov 19, 2024 Details

Larceny Project

ccs.neu.edu

Simple, efficient Scheme run-time system, for SPARC architecture. Petit Larceny is portable and emits C, for Linux (Intel IA32), Macintosh OS X (PowerPC), Solaris (SPARC), Windows.…

235 visits Jan 9, 2024 Details

Lego/Scheme Compiler

cs.indiana.edu

For Lego MindStorms Robot kits, alternative to Visual Basic. Description, documents, downloads.

337 visits Mar 11, 2024 Details

LispMe

lispme.de

Newer versions here. Scheme system for the Palm Pilot PDA developed by Fred Bayer.

439 visits Jun 10, 2025 Details

LispMe

geocities.com

Fred Bayers home page is really the home of this Scheme for 3COM Pilot PDA systems: compiler and runtime system intended mainly as a tool to quickly try ideas and algorithms, but c…

146 visits May 24, 2025 Details

MIT Scheme

swiss.ai.mit.edu

From MIT, for many systems, has comprehensive code library, includes most functionality of ANSI Standard Common Lisp (CLtL2), many low-level OS interactions. Distributed with syste…

266 visits Apr 14, 2025 Details

MzScheme

plt-scheme.org

Small, embeddable, scripting PLT Scheme implementation: R5RS compliant, full numerical tower, threads (all platforms), exceptions, modules, class-based objects, regular-expression …

246 visits Nov 29, 2025 Details

Petite Chez Scheme

scheme.com

A complete Scheme system that is fully compatible with Chez Scheme but uses high-speed threaded interpreter technology in place of Chez Scheme's incremental native-code compiler. […

397 visits Oct 21, 2025 Details

PLT Scheme

plt-scheme.org

Advocacy and authoring group, umbrella name for family of implementations: DrScheme (Scheme, MzScheme, MrEd); books: How to Design Programs, How to Use Scheme; and TeachScheme! pro…

279 visits Jan 2, 2024 Details

Pseudoscheme

-swiss.ai.mit.edu

Embeds Scheme in Common Lisp.

66 visits Feb 6, 2024 Details

Implementations

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