XACT can refer to:
Cross-platform Audio Creation Tool, an audio system developed by Microsoft xACT (X Audio Compression Toolkit), an application that encodes and decodes FLAC, SHN, Monkey’s Audio, TTA, Wavpack, and Apple Lossless files. IP-XACT, an XML-based standard covering electronic components Xact Radio, a former brand used by broadcaster WNTY in the United States
See also Extortion