MP3 Editing Tools

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	The information on this page are likely out-of-date and will not be updated in the forseeable future. It may be removed at any time.

MP3 files of the same bit rate, sample rate, number of channels and stereo encoding mode can typically be split, joined or volume-adjusted non-destructively with the below tools without the need for lossy re-encoding.

• MP3DirectCut for Windows (this can also be run on Linux under WINE)
  • MP3 DirectCut can also direct edit raw AAC files (except for volume adjustment). M4A files must be extracted to raw AAC.
• mp3splt - Cross-Platform tool for splitting MP3, OGG and FLAC files. It can split files by silence detection or by time point (it can accept an Audacity Label Track.txt file as input). It does not perform volume adjustments. Direct Windows and Mac download links:
  • Windows: interface version or command-line version
  • Mac packages: MacPorts interface or command-line, Fink interface or command-line
• mp3wrap - Cross-Platform command-line only tool for joining MP3 files.

For more advanced edits such as effects, the audio needs to be decompressed in an editor like Audacity, so you must then accept any perceptible quality loss from re-encoding the MP3.