Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code...

Free and open-source software (FOSS) is software that is available under a license that grants the right to use, modify, and distribute the software,...

Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study,...

Open source intelligence (OSINT) is the collection and analysis of data gathered from open sources (overt sources and publicly available information)...

The open-source-software movement is a social movement that supports the use of open-source licenses for some or all software, as part of the broader...

Open-source licenses are software licenses that allow content to be used, modified, and shared. They facilitate free and open-source software (FOSS) development...

Open-source hardware (OSH, OSHW) consists of physical artifacts of technology designed and offered by the open-design movement. Both free and open-source...

The Open Source Initiative (OSI) is the steward of the Open Source Definition, the most widely used standard for open-source software. Founded in 1998...

This is a list of notable open-source video games. Open-source video games are assembled from and are themselves open-source software, including public...

Microsoft, a technology company historically known for its opposition to the open source software paradigm, turned to embrace the approach in the 2010s. From...