A computer implemented method for updating alt attribute values in a data set. The application includes a file server for storing one or more file sets. The server is communicatively coupled to an attribute engine. The attribute engine is also communicatively coupled to an attribute database, wherein image data from the file sets are stored. The attribute database is communicatively coupled to a browser via an attribute portal, wherein an editor can edit alt attribute text values. The attribute engine updates the image data contained in the attribute database, based upon data of images in the file set. The attribute engine also updates the file set based upon the alt attribute values in the attribute database. Thus an editor can add or change alt attribute values in the file set via a browser.