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All OME formats and software are freely available, and all OMERO and Bio-Formats source code is available under GNU public "copyleft" licenses or through commercial license from Glencoe Software. FLIMfit is also now available under a GNU public "copyleft" license.

For questions about the GNU license refer to the Frequently Asked Questions about the GNU Licenses page.

Bio-Formats - under the terms of the GNU public "copyleft" license, any software package linking to Bio-Formats, either directly or indirectly, cannot be distributed unless its source code is also made available under the terms of the GPL. Some components which provide reader and writer implementations for open file formats, are released under a more permissive BSD-2 license which enables non-GPL third party software. For a complete list of which file formats are included in the BSD license, see the BSD column of the supported formats table. Developers of non-GPL software wishing to leverage Bio-Formats components not covered by the BSD license may purchase a commercial license from Glencoe Software; please contact them at to discuss your requirements.

OME-Files - under the terms of a permissive BSD-2 license.

The core OME Model Schema files (.XSD) use the Creative Commons Attribution 4.0 International License, and as such you are free to share or adapt them as long as you attribute the OME consortium as follows; "This work is derived in part from the OME specification. Copyright (C) 2002-2016 Open Microscopy Environment". See further information about using OME-XML in your work.

This website is also covered by the Creative Commons Attribution 4.0 International License - you are free to share or adapt content as long as you credit the Open Microscopy Environment. The exception to this is the screenshots and videos which can only be used for non-commercial purposes, see Attributions below.


The screenshots and videos on this site make use of data from the JCB DataViewer under Creative Commons license and as such are licensed under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License. See Full Attribution...


To cite OME's work in your publications, see citing OME.

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