If you download an icon for free, you'll need to give credit to the creator. You can find attribution requirements below:
The format should be “Icon name” by Creator Name, from Noun Project followed by the license type (CCBY3.0). We ask that users hyperlink the Noun Project portion and link to the browse page for the icon. You can use this link https://thenounproject.com/browse/icons/term/title-of-icon/ and change the "title-of-icon" portion to the icon's title. For example, if you use an icon titled "Tree" you will adjust the hyperlink to https://thenounproject.com/browse/icons/term/tree.
If you can’t hyperlink in the medium you’re using the icon, then type out thenounproject.com as the source. This attribution must be listed next to the icon, below the icon, or somewhere on the project, you create to reference the icon properly.
To make it easier, free downloads include a line of text with the creator credit containing the hyperlink. You can copy/paste this text into projects. We also offer a copy button for easy insertion into HTML. You can also find medium-specific credit requirements here.
Example 1: “Tree” icon by Edward Boatman from Noun Project CC BY 3.0
Example 2: “Tree” icon by Edward Boatman, from thenounproject.com CC BY 3.0