Kardashian has developed a significant presence online and across numerous social media platforms, including hundreds of millions of followers on Twitter and Instagram. With sisters Kourtney and Khloé, she launched the fashion boutique chain Dash, which operated from 2006 to 2018. Kardashian founded KKW Beauty and KKW Fragrance in 2017, and the shaping underwear or foundation garment company Skims in 2019. She has released a variety of products tied to her name, including the 2014 mobile game Kim Kardashian: Hollywood and the 2015 photo book Selfish. As an actress, she has appeared in the films Disaster Movie (2008), Deep in the Valley (2009), and Temptation: Confessions of a Marriage Counselor (2013), and provided her voice for PAW Patrol: The Movie (2021).

Time magazine included Kardashian on their list of 2015's 100 most influential people. Both critics and admirers have described her as exemplifying the notion of being famous for being famous. She is estimated to be worth US$1.8 billion, as of 2022. Kardashian has become more politically active by lobbying for prison reform and clemency, and is currently under a four-year law apprenticeship supervised by the legal nonprofit #cut50. Her relationship with rapper Kanye West has also received significant media coverage; they were married from 2014 to 2022 and have four children together.