Flags by Inktrap: Free Set

Beautiful, accurate flag icons for 12 common countries and territories, with circular, rounded and square versions for easy use on the web.

Includes individual, web-optimised PNG files in 8 common pixel sizes (512, 256, 128, 96, 80, 64, 48, 32).

Licensed under a Creative Commons Attribution 4.0 International License.

More information available on the Flags website at http://flags.inktrap.co.uk