Chez Scheme

a lightweight, robust, scheme-like lisp implementation

LambdaNative is a cross-platform development environment written in Scheme, supporting Android, iOS, BlackBerry 10, OS X, Linux, Windows, OpenBSD, NetBSD, FreeBSD and OpenWrt.

Gambit is an efficient implementation of the Scheme programming language.

A self-hosting Scheme to WebAssembly compiler

Official chibi-scheme repository

Code from the book "Essentials of Programming Languages", 3rd ed. by Friedman and Wand

A language for GPU computing.

Prototype smart text editor

an incremental approach to compiler construction

All the Scheme code examples from the book "The Little Schemer"

lightweight scheme interpreter

A Unix shell embedded in scheme

Canonical miniKanren implementation

A small nanopass compiler from a subset of Scheme to C. (Developed for Clojure Conj 2013)

The new nanopass framework; an embedded DSL for writing compilers in Scheme

Benchmarks for various Scheme implementations. Taken with kind permission from the Larceny project, based on the Gabriel and Gambit benchmarks.

Abandoned, please visit https://gitlab.com/NalaGinrut/artanis

Programs from the book Lisp in Small Pieces, updated to work on modern schemes

Larceny Scheme implementation

A native compiler for Scheme compliant with R6RS

Running the code you want to write as fast as the code you have to write

Relational interpreter in miniKanren that can generate quines

HASKELL: Yale Haskell system written in Lisp

Nanopass scheme compiler in scheme for x86

All the logic programming code examples from the book "The Reasoned Schemer"

An Efficient LALR(1) Parser Generator for Scheme

Box2D Lite ported to R6RS Scheme

Gambit swank backend for SLIME