Pike

Open Object Rexx   (Compare Project)

Moderate Activity

Mostly written in C++

License: CPL-1.0

Smalltalk YX   (Compare Project)

Inactive

Mostly written in C

License: GFDL-1.2, MIT

CLISP - an ANSI Common Lisp   (Compare Project)

Activity Not Available

Mostly written in Lisp

License: GPL-2.0+

Io Language   (Compare Project)

Moderate Activity

Mostly written in C

License: BSD-4-Clause-UC

Boo Programming Language   (Compare Project)

Moderate Activity

Mostly written in C#

License: BSD-3-Clause

I Language   (Compare Project)

Very Low Activity

Mostly written in C

License: AL

Widget INTERPreter   (Compare Project)

Activity Not Available

License: MIT

GNU Smalltalk   (Compare Project)

Moderate Activity

Mostly written in Smalltalk

License: GPL-2.0+, LGPL

efunge   (Compare Project)

Inactive

Mostly written in Erlang

License: GPL-3.0

cfunge   (Compare Project)

Very Low Activity

Mostly written in C

License: GPL-3.0, LGPL

Caudium   (Compare Project)

Very Low Activity

Mostly written in Pike

License: GPL-2.0+

Roxen   (Compare Project)

Activity Not Available

Mostly written in Pike

License: GPL-2.0+

XEmacs   (Compare Project)

Moderate Activity

Mostly written in C

License: GPL-2.0+

CVS: Concurrent Versions System   (Compare Project)

Inactive

Mostly written in C

License: GPL-2.0+

GNU sed   (Compare Project)

Very Low Activity

Mostly written in C

License: GPL-2.0+

Postfix   (Compare Project)

Activity Not Available

License: IBM Public License

GNU Screen   (Compare Project)

Very Low Activity

Mostly written in C

License: GPL-2.0+

GNU findutils   (Compare Project)

Low Activity

Mostly written in C

License: GPL-3.0+

Wget   (Compare Project)

Moderate Activity

Mostly written in C

License: GPL-2.0+

GNU Make   (Compare Project)

Low Activity

Mostly written in C

License: GPL-2.0+