CERN Open Hardware Licence

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The CERN Open Hardware Licence (OHL or CERN OHL) is a license used in open-source hardware projects. It was created by CERN, which published version 1.0 in March 2011. Version 1.1 was published in July 2011.[1] Version 1.2 was published in September 2013.[2][3]


Contrary to most of license names, the CERN OHL uses the British English spelling licence, not the American English spelling license containing an s.

Projects using the CERN OHL[edit]

The ColorHug2, an open source colorimeter.

On the CERN OHL website they have a list of projects using their license.[4] These projects include:


The CERN OHL is an accepted free content license according to the Free Cultural Works definition.[9]

See also[edit]


External links[edit]