An end-user license agreement or EULA () is a legal contract between a software supplier and a customer or end-user.
The practice of selling licenses to rather than copies of software predates the recognition of software copyright, which has been recognized since the 1970s in the United States. Initially, EULAs were often printed as shrink wrap contracts, where tearing the shrink wrap indicated acceptance. Software distributed via the internet is more commonly licensed via clickwrap (where the user clicks to agree to the license) or browsewrap (continuing to browse the website indicates agreement).