Audio · Convert Audio

Convert audio to MP3 on Mac

Convert between MP3, M4A, WAV and FLAC.

Runs on your MacFFmpeg, one-click install

Three steps. That's it.

1
Drop your files
Drag files onto Convert Audio, choose them with Choose Files, or right-click them in Finder.
2
Choose the options
Set what you need in the options panel, such as format. Your choices are remembered for next time.
3
Get the result
The result lands in a new dated folder in Downloads › OneMacTools. Your originals are never changed.

What Convert Audio does

Batch-convert audio files to MP3 for compatibility, M4A for Apple devices, WAV for editing or FLAC for lossless archiving.

Uses FFmpeg, which OneMacTools installs for you with one click through Homebrew.

Options

Format: MP3, M4A, WAV or FLAC

Great for

Convert WAV recordings to MP3
Make FLAC files play on an iPhone
Prepare audio for an editor

Questions about Convert Audio

Does Convert Audio upload my files?

No. Convert Audio runs entirely on your Mac, so your files never leave it and it works offline.

Will Convert Audio change my original files?

No. Results are saved as new files in a dated folder in Downloads › OneMacTools, and your originals are left exactly as they were unless you turn on an option that says otherwise.

What does Convert Audio need?

macOS 26 or later and FFmpeg, which OneMacTools can install for you through Homebrew with one click.