PassFab is a software brand founded in 2010 that develops tools to address common computer, mobile-device, and document challenges. Its Windows utilities include 4WinKey for resetting or recovering Windows passwords, FixUWin for repairing system issues, tools for partition management and duplicate-file removal, and software for creating bootable Windows media and recording screens. The brand also offers PDNob products, including a PDF editor, image translator, and online mind-mapping tool.

For mobile devices, PassFab provides iPhone unlocking, iOS password management and backup-password recovery, Android screen unlocking, and tools for removing Samsung FRP and iCloud activation locks. Its document software helps users recover or remove passwords for Excel, Word, PowerPoint, Office, PDF, RAR, and ZIP files, while additional utilities can retrieve product keys and convert, split, or compress PDFs. PassFab publishes how-to guides and provides customer support, technical assistance, and subscription services. The company says its products serve users worldwide, support 12 languages, and are backed by professional technical service and a 30-day money-back guarantee.