CMB2

My-Meta-Box   (Compare Project)

Mostly written in JavaScript

License: GPL-2-0-with-bison-exception

django-siteprefs   (Compare Project)

Mostly written in Python

License: BSD-3-Clause

Yet Another Options Parser (Ruby)   (Compare Project)

Mostly written in Ruby

License: mit

Ruby Options Hash   (Compare Project)

Mostly written in Ruby

License: mit

adataptempo   (Compare Project)

Mostly written in Ada

License: gpl3

Methodic   (Compare Project)

Mostly written in Ruby

License: BSD-3-Clause

opts   (Compare Project)

Mostly written in C

License: bsd

django-serializable   (Compare Project)

License: gpl3_or_later

hugh-fields   (Compare Project)

Mostly written in C++

License: lgpl21

Backbone   (Compare Project)

Mostly written in Objective-C

License: gpl, lgpl