Kreative Vexillo is a repository of images of flags in various formats, sizes, and aspect ratios, as well as the XML files used to describe them and the computer programs used to generate them.

Flags are named according to ISO 3166-1 alpha-2 country codes. Flags are present for all officially assigned codes as well as many exceptionally reserved, transitionally reserved, and user-assigned codes. Many other flags are included, among them ICS and NATO signal flags, pride flags, and flags for constructed languages.

Kreative Vexillo contains over 800 flags. It is a continuation of the My'file flag icon set which contained 300 flags and the FamFamFam flag icon set which contained 247 flags.