The Noun Project provides icons under the following licenses:
Creative Commons Attribution (CC BY) - This license enables you to download, use, copy, modify, and build upon the symbol as long as you follow proper attribution requirements. You can use the icon for free as long as you attribute properly, or waive the need to attribute by purchasing.
Creative Commons Royalty-Free (CC BY) - This license comes with a paid subscription, pre-paid credit, or a single $2.99 purchase. It allows you to download, use, copy, modify, and build upon the icon with no attribution required. More information on the Royalty-Free License fees and additional terms are available at https://thenounproject.com/pricing.
Public Domain (PD) - This marks icons that are in the public domain. There are no restrictions placed on them.
You can find more details on these licenses by visiting our website here.