The Hello Kitty trademark has since spread globally and developed licensing arrangements worth more than $1 billion annually. Examples of products depicting the character include dolls, stickers, greeting cards, clothes, accessories, school supplies, dishes and home appliances. Her fame as a recurring Sanrio character has led to the creation of two officially licensed Hello Kitty theme parks, Harmonyland and the indoor Sanrio Puroland.

A spokesperson for Sanrio says that Hello Kitty is not normally given a mouth because "without the mouth, it is easier for the person looking at Hello Kitty to project their feelings onto the character" and that "the person can be happy or sad together with Hello Kitty."

Hello Kitty can be found on a variety of consumer products ranging from school supplies to fashion accessories. These products range from everyday items such to rare collectibles.

As of 2010, Bank of America began offering Hello Kitty-themed checking accounts, where the account holder can get cheques and a Visa debit card with Kitty's face on it. MasterCard debit cards have featured Hello Kitty as a design since 2004.

Sanrio and Fender released a series of Hello Kitty guitars (the Hello Kitty Stratocaster), and even a jet airplane (the Hello Kitty Jet). MasterCard debit cards have featured Hello Kitty as a design since 2004.

2009 marked the collaboration between apparel and accessory brand Stussy and Hello Kitty. Stussy worked with Hello Kitty on collection focusing on the Hello Kitty character with Stussy signature graphics. This collection included T-shirts, keychains, and hoodies.

In 2010, Hello Kitty will enter the wine market with a Hello Kitty Wine collection made up of four wines that will be available for purchase online.

Hello Kitty has her own branded album, Hello World, featuring Hello Kitty-inspired songs performed by a collection of artists, including Keke Palmer and Cori Yarckin.[citation needed]

Hello Kitty was also chosen by AH-Software to become a Vocaloid. The choice was owed to the fact it was their 50th year anniversary.

Numerous Hello Kitty games have been produced since the release of the first title for NES in 1992; however, the majority of these games were never released outside of Japan. Hello Kitty also has made cameo appearances in games featuring other Sanrio characters, such as the Keroppi game, Kero Kero Keroppi no Bōken Nikki: Nemureru Mori no Keroleen. Special edition consoles such as the Hello Kitty Dreamcast, Hello Kitty Game Boy Pocket, and Hello Kitty Crystal Edition Xbox have also been released exclusively in Japan.