Stacked Git

Git   (Compare Project)

Mostly written in C

License: gpl

Cogito   (Compare Project)

License: gpl

guilt   (Compare Project)

Mostly written in shell script

License: gpl

Cvs2Svn   (Compare Project)

Mostly written in Python

License: apache_ish

AnkhSVN   (Compare Project)

Mostly written in C#

License: apache_2

SVK   (Compare Project)

Mostly written in Perl

License: Artistic_License_2_0

monotone   (Compare Project)

Mostly written in C++

License: GPL2

CVSNT   (Compare Project)

License: gpl, lgpl21, lgpl

TkCVS   (Compare Project)

Mostly written in Tcl

License: gpl

Apache Subversion   (Compare Project)

Mostly written in C

License: apache_2