Qualifiers are those things in parenthesis you see at the end of some tags. They serve to make the exact meaning of the tag clear so there is no confusion with other tags.

There are many types of qualifiers.

Artist qualifiers

Many artists go by a short name that can be shared by other artists or characters. So Danbooru qualifies them with another text string that is related to that artist. It may be:

• the artist's website or blog name
• circle name
• The username (often different from their actual displayed name) that artist uses on a site like Pixiv, Twitter, DeviantART, Tinami, etc.
• Nickname

Examples: shimo_(depthbomb) / aile_(crossroads) / alphonse_(white_datura)

See howto:artist for more info.

Series Qualifiers

For names of characters that can be confused with characters from other series, or with artists. If the series name is long, an abbreviation may be used for the qualifier.

Examples: yamada_maya_(infinite_stratos) / knight_(ragnarok_online) / araya_(nakaimo) / angel_(evangelion)

Cosplay Qualifier

hatsune_miku_(cosplay) automatically adds both hatsune_miku and cosplay to a post.

Meme Qualifier

longcat_(meme) automatically adds meme to a post.

Distinguishing copyrights from characters or objects

metroid = The game series
metroid_(creature) = The alien creatures from the series

claymore_(series) = The manga and anime series.
claymore_(sword) = A type of sword, which the manga was named after.

Alternate forms of characters

Examples: hatsune_miku_(append) / saigyouji_yuyuko_(living)

View wiki