noun
public-domain software
Computing term for software that is not protected by copyright and can be freely used, modified, and distributed.
このパブリックドメインソフトは誰でも自由に使えます。
This public-domain software can be freely used by anyone.
Spelling with interpuncts, sometimes used for clarity.
Free software, but may still have copyright restrictions; public-domain software has no copyright at all.
Open-source software whose source code is available, but it may have license terms; public-domain software has no such restrictions.
Loanword from English 'public domain software'.