Siren renames, moves and copies files using an expression. A lot of information associated to a file can be used: name, extension, dates, selection number ... etc ... other information is extracted from it according to its type: audio, video, image (standard and raw), exif, iptc, office document, pdf, epub, html and many others. Many different operations can be performed on character strings. A complete directory tree can be processed. Images can be viewed. For example, to change a file name to uppercase with the mp3 extension, the expression can be: %ub.mp3

Multiplatform (Windows&Linux) Near 130 different file types from which metadata are extracted and can be used in the renaming process Portable No writing in the registry

Users who want to rename a music, image, documents ... files. The expression system need a little knowledge in computer program. For example being able to use a spreadsheet program.