Fast MP3 Cutter Joiner cuts and trims a large MP3 file into multiple smaller pieces. The software joins multiple MP3 files into a single file as well. Fast MP3 Cutter Joiner supports cutting a MP3 file by file size, pieces count, time duration, and custom selections. It provides a slider bar to visually position the cut points where you want. You can preview every piece, and set forward and backward overlap, fade-in, fade-out, and ID3 tags. To save your time, Fast MP3 Cutter Joiner also supports batch cut, you can cut a batch of MP3 files at a time. It cuts MP3 files directly without re-encoding, so it is fast and exactly keeps sound quality of original MP3 files. The software joins MP3 files that were encoded by not only same parameters (e.g. sample frequency, bit rate, channels) but also different parameters. You can customize the encoding parameters for the destination MP3 file as well. It also supports batch join as well.