closed-source software

[/ˈkloʊzd sɔːrs ˈsɔːftweər/]
nounpl: closed-source software / closed-source softwares
software de código fechado / software proprietário
1. Computer software whose source code is not publicly available and is proprietary to the developer or organization that created it, preventing users from modifying, distributing, or studying the code
Microsoft Windows is a closed-source software that requires a license to use.
Microsoft Windows é um software de código fechado que requer uma licença para ser utilizado.
2. Software distributed under commercial terms where the underlying source code remains hidden from users and competitors
Most closed-source software comes with user agreements that prohibit reverse engineering.
A maioria dos softwares de código fechado vem com acordos de usuário que proíbem engenharia reversa.
In Brazil, the debate between closed-source and open-source software is significant in tech communities and universities. The term 'software proprietário' emphasizes ownership and commercial licensing. In Portugal and Brazil, government and educational institutions increasingly prefer open-source alternatives, making this distinction culturally and economically relevant. The concept reflects broader discussions about software freedom, licensing costs, and digital sovereignty.
Synonyms / Sinônimos
proprietary softwarecommercial softwareclosed softwaresource-closed software
Antonyms / Antônimos
open-source softwarefree softwareopen-source code

Regional Variations

General Brazilian
software de código fechado / software proprietário
Most common usage in Brazil; 'software proprietário' is also widely used
São Paulo
software de código fechado
Preferred in tech hubs and corporate environments
Portugal
software de código fechado / software proprietário
Similar usage to Brazil; sometimes uses 'software privado'
Rio de Janeiro
software proprietário
Commonly used in academic and professional contexts

Related Words

source codelicensing agreementintellectual propertyreverse engineeringsoftware licensecopyright

Related Idioms & Phrases

under lock and key (meaning: kept secret or protected)
keep one's cards close to one's chest (meaning: keep proprietary information secret)
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