She's a combination of the "cute girl next door" combined with an obsessed and quirky inventor. There are a few people she doesn't like, but those few are typically villains. Gadget has a natural warmth about her that makes everyone welcome and pleased to see her. She's very loyal to her friends and frequently goes out of the way to help them.

At the same time, Gadget is constantly thinking and has trouble focusing on just one way to do things. However once her focus has come, she can invent at a staggering pace. Gadget has her quirks. She thinks so much from an inventor's standpoint that it tends to make her naive at times. She has upset Chip and Dale's romantic advances more than once, simply by not understanding what it was they were after. When Gadget is excited about her inventions, she's known to use scientific jargon freely and talk at an extremely rapid pace. This tends to leave anyone listening to her clueless as to what she actually meant, but it never seems to bother her. Gadget can be easily angered at times as well. Gadget has a limit beyond which her cute veneer is lost and she becomes, well... aggressive. Woe to the villain or anyone else who manages this feat, because once Gadget is riled up, she's a juggernaut—thankfully, such incidents are rare.