MacPaw is a software development company that develops and distributes software for macOS and iOS. MacPaw is the maker behind CleanMyMac X, Setapp, ClearVPN, SpyBuster and other products. In 2017, MacPaw acquired The Unarchiver and has been actively supporting the product since. Today, MacPaw products have more than 30 million users worldwide. Every fifth Mac on Earth has at least one app by MacPaw. The company was founded in 2008 in Kyiv, Ukraine.

The Unarchiver is a proprietary freeware data decompression utility, which supports more formats than Archive Utility (formerly known as BOMArchiveHelper), the built-in archive unpacker program in macOS. It can also handle filenames in various character encodings, created using operating system versions that use those character encodings.