# GPL3 license for Slicer derived app

**URL:** <https://discourse.slicer.org/t/gpl3-license-for-slicer-derived-app/16379>\
**Category:** Support\
**Created:** [March 4, 2021, 9:18pm UTC](https://discourse.slicer.org/t/gpl3-license-for-slicer-derived-app/16379 "2021-03-04T21:18:57Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [March 4, 2021, 9:30pm UTC](https://discourse.slicer.org/t/gpl3-license-for-slicer-derived-app/16379/2 "2021-03-04T21:30:28Z")

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As long as you comply with the terms of [the Slicer license](https://github.com/Slicer/Slicer/blob/master/License.txt) you are free to distribute your modifications under the license of your choice. For example, it can be [in a closed source application](https://discourse.slicer.org/t/slicer-usage-in-the-closed-commercial-product/14180).

We would encourage you not to use GPL, for [reasons outlined here](https://discourse.slicer.org/t/rpy2-pip-installation-fails/4883/15), but that’s up to you.

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_[View the full topic](https://discourse.slicer.org/t/gpl3-license-for-slicer-derived-app/16379)._