Lifehacker is a digital publication offering practical guidance on technology and everyday life. Since 2005, it has aimed to help readers understand how gadgets, software, and other tools work, and use them more effectively. Its team of writers and researchers produces tutorials, explainers, reviews, recommendations, and hands-on tests to address common questions and problems.

Coverage spans technology, health and fitness, entertainment, home and garden, shopping deals, product comparisons, and everyday hacks. Technology articles explore topics such as AI, smartphones, computers, apps, privacy, and streaming, while other features cover fitness training, household projects, and popular culture. Lifehacker also publishes buying guides and product picks, including recommendations for devices, tools, and services such as VPNs and apps. Its editorial content is supported by research and product testing, with the site stating that its experts spend more than 5,000 hours each month investigating and testing solutions. Through its articles and guides, Lifehacker seeks to make information useful and accessible, helping readers make informed choices and handle tasks more efficiently.