Gwibber

OpenMicroBlogger   (Compare Project)

Mostly written in JavaScript

License: mit

Maisha   (Compare Project)

Mostly written in Perl

License: artistic_gpl

Qataki   (Compare Project)

Mostly written in shell script

License: unlicense

Pubwich   (Compare Project)

Mostly written in PHP

License: gpl

Open Graph Protocol Framework   (Compare Project)

Mostly written in PHP

License: gpl3

Kiki website framework   (Compare Project)

Mostly written in PHP

License: mit

Maintainr   (Compare Project)

License: gpl3_or_later

qTwitter   (Compare Project)

Mostly written in C++

License: lgpl21_or_later

TTYtter   (Compare Project)

Mostly written in Perl

License: Unknown

bti   (Compare Project)

Mostly written in Perl

License: gpl