Skip to content

Which flag is that?

Upload a photo and search historical flag books, maritime collections and modern flag databases.

Upload a flag photo

Drop a flag photo here

One flag, as much of the frame as you can manage. JPEG, PNG, WebP or HEIC, up to 12 MB.

Photos are used for the match, then discarded.

  • Built by FlagGeek
  • Historical and modern sources
  • Source-linked results

How it works

  1. Upload. Add a photo from your camera roll, or take one now.

  2. Compare. Colours, charges and proportions are measured against the catalogue.

  3. Explore the sources. Open the reference work behind each match and check it yourself.

How matching works in detail

One catalogue, many collections

Historical flag books, maritime ensign albums, statutory records and modern flag databases, measured into one index so a photograph can be matched against all of them at once.

Images indexed
Current index data unavailable
Flags in corpus
Current index data unavailable
Years covered
Current index data unavailable

Current index data unavailable

Including FlagGeek.net · Flags of the World (FOTW) · National gazettes & flag acts.

What is in the libraryEvery source we cite

Who made this

Created by Kenny Ytrup, founder of FlagGeek.net. Flag references are organised by name; this one starts from the photograph instead.

AboutFlagGeek.net