SoX

SoX (Sound eXchange) is a cross-platform command-line audio processing utility maintained by an open-source team that converts audio files between many formats and applies audio effects such as filtering, resampling, and mixing. It is widely used for scripted batch audio processing and is available on Linux, macOS, and Windows.

Click any badge for full per-format details - what it is, how to open it and how to convert it.