An audio file converter is a type of file converter that is (unexpectedly!) used to convert one type of audio file (e.g. MP3, WAV, WMA, etc.) to another type of audio file. Below is my ranking list of the best free audio converter software and available online conversion services.
Audio-Convert.com
This is my first choice for three reasons: it works directly from the website, has no file size limit, and supports batch conversion.
Apart from these things, Audio-Convert.com is similar to the other web-based converters below: add one or more files from your computer, Dropbox or URL and convert them online to multiple formats.
Input formats: M4A, M4B, M4P, M4R, M4V, MP3, MP4, OGG, WAV, WAVE and others
Output formats: AAC, AIFF, FLAC, M4A, M4R, MMF, MIDI, MP3, OGG, OPUS, WAV and WMA
You can convert more than one file at a time, and each of them can have its own conversion settings or the same settings. This includes format, encoder, quality, sample rate, and channel.
Zamzar
Zamzar has always been a favorite of mine. I like that it is more than just an audio converter, but even in that context, I appreciate that it works through my browser and that I can easily import files from my favorite cloud storage services.
Like any online file converter, it’s extremely easy to use. To get started, upload the files you want to convert. Here’s what’s supported:
Input formats: 3GA, AAC, AC3, AIFC, AIFF, AMR, APE, CAF, FLAC, M4A, M4B, M4R, MIDI, MP3, OGA, OGG, RA, RAM, WAV and WMA
Output formats: AAC, AC3, FLAC, M4A, M4R, MP3, MP4, OGG, WAV and WMA
Zamzar’s conversion time is sometimes slow compared to other online audio converter services. However, fortunately, you don’t have to wait for an email to get the download link. If you don’t choose to receive an email, you can stay on the download page for a button to appear so you can download the converted file immediately.
FileZigZag
FileZigZag is another online option. This free audio conversion service converts most common audio formats as long as they are under 150MB.
All you have to do is upload your original audio file(s), select the desired output format, and then wait for the download button to appear.
Input formats: 3GA, AAC, AC3, AIF, AIFF, AMR, AU, CAF, FLAC, M4A, M4R, M4P, MMF, MP2, MP3, MPGA, OGA, OGG, OMA, OPUS, QCP, RA, RAM, WAV, WEBM and WMA
Output formats: AAC, AC3, AIF, AIFC, AIFF, AMR, AU, FLAC, M4A, M4R, MP3, MMF, OPUS, OGG, RA and WAV
The worst thing about this converter is the time it takes to complete the conversion and the limit of 10 conversions per day.
Movavi Video Converter
Despite its name, Movavi Video Converter also works with audio and video files, as well as images. The program has no ads and its interface is intuitive.
My favorite feature is that it allows you to choose a device instead of a format for the output option. Sometimes I’m not sure which formats are suitable for which devices, which eliminates the uncertainty of choosing a file format.
Input formats: AAC, AC3, AIF, AIFF, AIFC, APE, AU, F4A, FLAC, M4A, M4B, M4R, MKA, MP3, OGG, OPUS, WAV, and WMA
Output formats: AAC, AC3, AIFF, AU, F4A, FLAC, M4A, M4B, M4R, MKA, MP3, OGG, WAV and WMA (see all supported formats here)
Bulk import is supported to convert all audio files at once. You can also rename the file before the conversion starts and quickly save it back to the same folder as the original file.
