RedFox (formerly SlySoft) is a software development company based in Belize. The company is most prominently known for its software AnyDVD, which can be used to bypass copy protection measures on optical media, including DVD and Blu-ray Disc media, as well as CloneCD, which is used to back up the contents of optical discs.

The company formerly operated as the St. John's, Antigua and Barbuda-based SlySoft. At some point in February 2016, SlySoft shut down, with its home page replaced by a message citing "recent regulatory requirements". On or around 16 February 2016, AACS LA had requested that the Office of the United States Trade Representative place Antigua and Barbuda on its Priority Watch List of countries that fail to prevent intellectual property violations, with specific reference to SlySoft. However, the company's online forum remained online, and had replaced the brand SlySoft with "RedFox". SlySoft developers also revealed that none of the company's staff were actually based in Antigua, that the company was not involved in legal settlements from AACS LA, and that key staff members still had access to SlySoft's technical infrastructure—including build systems and licensing servers—feasibly allowing development of AnyDVD to continue.

On 2 March 2016, SlySoft reformed as RedFox, under a top-level domain based in Belize, and released a new version of AnyDVD.