CLISP is described as 'Portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish' and is an app in the development category. There are more than 10 alternatives to CLISP for a variety of platforms, including Mac, Windows, Linux, BSD and Self-Hosted apps. The best CLISP alternative is Hy, which is both free and Open Source. Other great apps like CLISP are MIT Scheme, Steel Bank Common Lisp, CMU Common Lisp and Armed Bear Common Lisp.
femtolisp is a simple, elegant Scheme dialect. It is a lisp-1 with lexical scope. The core is 12 builtin special forms and 33 builtin functions. It is fast, ranking among the fastest non-native-compiled Scheme implementations.
femtolisp is the most popular Self-Hosted alternative to CLISP.
