Abstract: A method and application provide a universal key code for use when a key is lost. The code can be taken to a locksmith or retailer for duplication. The user can obtain a digital image of their key and a software application can extract unique key geometries from the key, via, for example, edge detection technology and/or other mathematical methods, digital image processing methods and standard image processing methods. A key code can be determined from this extracted information and mapped to a known key code database. The software application can output, from a digital image of an original key, the key blank and key cut code to allow a consumer to simply and conveniently obtain a duplicate key.