'''Perangkat lunak gratis''' atau '''peranti cuma-cuma''' ({{Lang-en|'''freeware'''}}) adalah [[perangkat lunak]], biasanya [[Perangkat lunak milik perorangan|milik perorangan]] dan dilindungi [[hak cipta]], yang didistribusikandiagihkan ke [[pengguna akhir]] secara cuma-cuma dan tidak memungut bayaran apa pun. Saat ini tidak ada [[Lisensi hak cipta|lisensi]], perjanjian hak, atau [[EULA|persetujuan lisensi pengguna akhir]] yang menjelaskan secara rinciperinci apa itu ''freeware''; setiap penerbitan perangkat lunak dapat memiliki aturan sendiri terkait ''freeware''. Misalnya, ada penerbit yang mengizinkan [[Karya turunan|modifikasi]], [[Distribusi ulang perangkat lunak|distribusipengagihan ulang]], atau [[Reverse engineering|rekayasa balik]] tanpa seizin pencipta, sedangkan yang lainnya justru melarang.<ref name="linfo">{{cite web|date=2006-10-22|title=Freeware Definition|url=http://www.linfo.org/freeware.html|work=The Linux Information Project|accessdate=2009-06-12}}</ref><ref name="lawrence">{{cite book|last1=Graham|first1=Lawrence D|year=1999|url=https://books.google.com/books?id=c6IS3RnN6qAC&q=%22Legal+battles+that+shaped+the+computer+industry%22+%22from+the+beginning+of+the+computer+age%22&pg=PA175|title=Legal battles that shaped the computer industry|publisher=Greenwood Publishing Group|isbn=978-1-56720-178-9|page=175|quote=Freeware, however, is generally only free in terms of price; the author typically retains all other rights, including the rights to copy, distribute, and make derivative works from the software.|accessdate=2009-03-16}}</ref><ref name="gnu">{{cite web|title=Categories of free and nonfree software|url=https://www.gnu.org/philosophy/categories.html|accessdate=2017-05-01|quote=The term “freeware” has no clear accepted definition, but it is commonly used for packages which permit redistribution but not modification (and their source code is not available). These packages are not free software, so please don't use "freeware" to refer to free software.}}</ref> Tidak seperti [[perangkat lunak bebas dan sumber terbuka]], yang kebanyakan juga disediakan gratis, [[kode sumber]] perangkat lunak gratis biasanya tertutup.<ref name="linfo" /><ref name="gnu" /><ref name="dod-definition">{{citation|url=http://dodcio.defense.gov/OpenSourceSoftwareFAQ.aspx#Q:_Are_.22non-commercial_software.22.2C_.22freeware.22.2C_or_.22shareware.22_the_same_thing_as_open_source_software.3F|title=Frequently Asked Questions regarding Open Source Software (OSS) and the Department of Defense (DoD)|quote=Also, do not use the terms "freeware" or "shareware" as a synonym for "open source software". DoD Instruction 8500.2, “Information Assurance (IA) Implementation”, Enclosure 4, control DCPD-1, states that these terms apply to software where "the Government does not have access to the original source code". The government does have access to the original source code of open source software, so these terms do not apply.|accessdate=2012-06-11}}</ref><ref name="wolfire2010">{{cite web|last=Rosen|first=David|date=May 16, 2010|title=Open-source software is not always freeware|url=http://blog.wolfire.com/2010/05/Open-source-software-is-not-always-freeware|publisher=wolfire.com|accessdate=2016-01-18}}</ref> Perangkat lunak gratis dapat memberikan manfaat bagi pembuatnya, seperti meningkatkan nilai jual bagi versi yang lebih lengkap seperti [[model bisnis]] ''[[freemium]]'' dan b[[Shareware|perangkat kongsi]] (''shareware'').<ref>{{Cite journal|last1=Lyons|first1=Kelly|last2=Messinger|first2=Paul R.|last3=Niu|first3=Run H.|last4=Stroulia|first4=Eleni|author4-link=Eleni Stroulia|date=2012|title=A tale of two pricing systems for services|journal=Information Systems and E-Business Management|language=en|volume=10|issue=1|pages=19–42|doi=10.1007/s10257-010-0151-3|issn=1617-9846|s2cid=34195355}}</ref>
