123Tag is an easy-to-use MP3 Tag editor and file re namer, simple to use to manage the information stored into MP3 files (ID3v1 and ID3v2 Tags). File names can be changed automatically using the tag information or otherwise it can extract tag information from the file name. Personal order of files in folder and auto-numbering. Advanced file search by filenames or by embedded Tag information. MP3 player and file manager. En-mass file treatments.