8 Free Audio Converter Software Programs

Converters for MP3, WAV, OGG, WMA, M4A, FLAC and more

Illustration of several audio files

Kokota/IconFinder.com

An audio file converter is one kind of file converter that (surprise!) is used to convert one type of audio file (like an MP3, WAV, WMA, etc.) into another type of audio file.

If you're unable to play or edit a certain audio file the way you want because the format isn't supported by the software you're using, one of these free audio converter software programs or online tools can help.

Audio file converter tools are also helpful if your favorite music app on your phone or tablet doesn't support the format that a new song you downloaded is in. An audio converter can convert that obscure format into a format that your app supports.

Below is a ranked list of the best free audio converter software programs and online converter services available:

Every audio converter program below is freeware. We haven't listed any shareware or trialware audio converters.

One process not covered below is YouTube to MP3. Since "YouTube" isn't really a format, it doesn't strictly belong in this list, but it's a common conversation nonetheless.

01
of 08

Freemake Audio Converter

Screenshot of Freemake Audio Converter in Windows 7
Ellora Assets Corporation

What We Like

  • Supports common audio file formats

  • Lets you convert more than one audio file consecutively

  • Multiple audio files can be joined into one and then converted to a new format (or the same)

  • The quality of the converted file can be adjusted

What We Don't Like

  • Won't convert files longer than three minutes

  • Might try to install another program during setup

Freemake Audio Converter supports several common audio formats and is extremely easy to use. However, it only supports audio files that are shorter than three minutes.

In addition to converting single audio files into other formats in bulk, you can join multiple files into one larger audio files with Freemake Audio Converter. You can also adjust the output quality before converting files.

The biggest drawback to this program is that have to buy the Infinite Pack to convert audio files that are longer than three minutes.

  • Input Formats: AAC, AMR, AC3, FLAC, M4A, M4R, MP3, OGG, WAV, and WMA
  • Output Formats: AAC, FLAC, M4A, MP3, OGG, WAV, and WMA

The installer for Freemake Audio Converter will attempt to install another program that's unrelated to the converter, so be sure to uncheck that option before finishing setup if you don't want it added to your computer.

You might also want to check out Freemake Video Converter, another program from the same developers as Freemake Audio Converter that supports audio formats too. It even lets you convert local and online videos into other formats. However, while Freemake Audio Converter does support MP3s, their video software does not (unless you pay for it).

Freemake Audio Converter can for sure run on Windows 10, 8, and 7, and is likely to work with older versions too. 

02
of 08

FileZigZag

Screenshot of FileZigZag

What We Like

  • Works online, so no software download is necessary

  • Runs on any operating system

  • Supports a wide variety of file formats

  • Automatically shows you all the compatible formats you can convert the file to

  • Converts files from your computer, a URL, or Google Drive

What We Don't Like

  • You have to upload the file to the website before the conversion can take place

  • To download the converted file, you have to wait for the email

  • Limits conversions to files that are less than 180 MB in size (however, this is very large for most files and shouldn't be a deal breaker for most users)

FileZigZag is an online audio converter service that will convert most common audio formats, so long as they don't exceed 180 MB.

All you do is upload the original audio file, choose the desired output format, and then wait for an email with a link to the converted file.

You can upload remote audio files via their direct URL as well as files stored in your Google Drive account.

  • Input Formats: 3GA, AAC, AC3, AIF, AIFC, AIFF, AMR, AU, CAF, FLAC, M4A, M4R, M4P, MID, MIDI, MMF, MP2, MP3, MPGA, OGA, OGG, OMA, OPUS, QCP, RA, RAM, WAV, and WMA
  • Output Formats: AAC, AC3, AIF, AIFC, AIFF, AU, FLAC, M4A, M4R, MP3, MMF, OPUS, OGG, RA, WAV, and WMA

The worst thing about FileZigZag is the time it takes to upload the audio file and receive the link in your email. However, most audio files, even long music tracks, come in a pretty small size, so it's not usually a problem.

FileZigZag should work with all operating systems that support a web browser, like macOS, Windows, and Linux.

03
of 08

Zamzar

Screenshot of the Zamzar website
Zamzar

What We Like

  • Works on any OS through your web browser

  • Can convert local and online audio files

  • Lots of audio file formats are supported

  • Really easy to use

  • Lists every compatible format you can convert the audio file to (so there's no confusion)

What We Don't Like

  • Files can only be as large as 50 MB (though it shouldn't be a problem for most people)

  • Conversions are often slower than other online audio file converters

  • Limits conversions to five for any single session

  • Limits conversions to 50 within every 24-hour period

  • Converted files are downloadable only after opening the link in the email

Zamzar is another online audio converter service that supports most common music and audio formats.

Upload the file from your computer or enter a URL to an online file that you need to be converted.

  • Input Formats: 3GA, AAC, AC3, AIFC, AIFF, AMR, APE, CAF, FLAC, M4A, M4P, M4R, MIDI, MP3, OGA, OGG, RA, RAM, WAV, and WMA
  • Output Formats: AAC, AC3, FLAC, M4A, M4R, MP3, MP4, OGG, WAV, and WMA

The biggest disadvantage with Zamzar is their 50 MB limit for source files. While many audio files are smaller than this, some low compression formats can exceed this small limit.

Also, Zamzar's conversion time is slow when compared to other online audio converter services.

Zamzar can be used with pretty much any modern web browser on any OS, such as Windows, Mac, and Linux.

04
of 08

MediaHuman Audio Converter

Screenshot of MediaHuman Audio Converter
MediaHuman

What We Like

  • Has an easy-to-use interface

  • Lets you convert to and from a wide variety of popular and not-so-popular formats

  • Can convert songs from one of your iTunes playlists

  • There's an option to auto-import the song into iTunes after the conversion

What We Don't Like

  • Missing the advanced options you might find in other, more robust audio file converters

If you're looking for a simple program that works without the advanced options and confusing interfaces that some of these audio converter tools have, you'll definitely like MediaHuman Audio Converter.

Just drag and drop the audio files you need to be converted directly into the program, choose an output format, and then start the conversion.

  • Input Formats: AAC, AC3, AIF, AIFF, ALAW, AMR, APE, AU, AWB, CAF, DSF, DTS, FLAC, M4A, M4B, M4R, MP2, MP3, MPC, OGG, OPUS, RA, SHN, TTA, WAV, WMA, and WV
  • Output Formats: AAC, AC3, AIFF, ALAC, FLAC, M4R, MP3, OGG, OPUS, WAV, and WMA

If want more advanced options, MediaHuman Audio Converter does let you customize things like the default output folder, whether you want to automatically add the converted songs to iTunes, and if you want to search online for cover art, among other options.

Fortunately, these settings are hidden away and are completely unobtrusive unless you want to use them.

The following operating systems are supported: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2003, and macOS 10.5 and newer.

05
of 08

Hamster Free Audio Converter

Screenshot of Hamster in Windows 10
HAMSTER soft

What We Like

  • Super easy to use

  • Audio files can be converted in bulk

  • Shows you file formats based on device type to make choosing a compatible format easier

  • Lets you merge multiple audio files into one bigger file

What We Don't Like

  • Officially supports only Windows 7 and older versions of Windows

  • Doesn't let you save a default location for converted files; you're asked each time you convert something

Hamster is a free audio converter that installs quickly, has a minimal interface, and isn't hard to use.

Not only can Hamster convert multiple audio files in bulk, but it can merge the files into one, much like Freemake Audio Converter.

  • Input Formats: AAC, AC3, AIFF, AMR, FLAC, MP2, MP3, OGG, RM, VOC, WAV, and WMA
  • Output Formats: AAC, AC3, AIFF, AMR, FLAC, MP3, MP2, OGG, RM, WAV, and WMA

After importing files to convert, Hamster lets you choose any of the output formats from above or pick from a device if you're not sure what format the file needs to be in.

For example, instead of choosing OGG or WAV, you can pick the actual device, like Sony, Apple, Nokia, Philips, Microsoft, BlackBerry, HTC, and others.

Hamster Free Audio Converter is said to work with Windows 7, Vista, XP, and 2000.

06
of 08

VSDC Free Audio Converter

Screenshot of VSDC Free Audio Converter in Windows 7
Flash-Integro LLC

What We Like

  • Converts local audio files and ones located only

  • Supports editing information like the song's album, artist, etc.

  • Lets you convert between many common audio formats

  • Includes advanced options you can tweak

What We Don't Like

  • Setup attempts to install other programs along with the audio converter

VSDC Free Audio Converter has a tabbed interface that's uncomplicated to understand and isn't cluttered with unnecessary buttons.

Just load up the audio files you want to convert (either by file or folder), or enter the URL for an online file, choose the Formats tab to select an output format, and click Start conversion to convert the files.

There's also a tag editor for modifying a track's title, author, album, genre, etc., as well as a built-in player for listening to songs before you convert them.

  • Input Formats: AAC, AFC, AIF, AIFC, AIFF, AMR, ASF, M2A, M3U, M4A, MP2, MP3, MP4, MPC, OGG, OMA, RA, RM, VOC, WAV, WMA, and WV
  • Output Formats: AAC, AIFF, AMR, AU, M4A, MP3, OGG, WAV, and WMA

The installer will try to add unnecessary programs and tools to your computer if you let it. Be sure to watch for these and disable them if you wish.

If you need to, you can choose an alternative output quality, frequency, and bitrate from the advanced options.

Overall, VSDC Free Audio Converter is just as quick as most of the other tools in this list and is great for converting your files to a common format.

VSDC Free Audio Converter is said to be compatible with all Windows operating systems.

07
of 08

Media.io

Screenshot of the Media.io audio converter website

What We Like

  • Supports more formats than most free audio file converters

  • Runs online through your web browser

  • Provides a few different ways to download the audio files

  • Supports files as large as 100 MB

What We Don't Like

  • Only two files can be converted at once

  • You have to wait several seconds for the download link

  • Conversions are purposely slowed down because this is the free edition

Media.io is another online audio converter, which means although you don't have to download any software to use it, you do have to upload and download your files to make it work.

After loading one or more audio files to Media.io, you just need to choose one of the output formats from below. When the file is ready to be downloaded, use the small download button to save it to your computer.

  • Input Formats: 3GP, AAC, AC3, ACT, ADX, AIFF, AMR, APE, ASF, AU, CAF, DTS, FLAC, GSM, MOD, MP2, MP3, MPC, MUS, OGG, OMA, OPUS, QCP, RM, SHN, SPX, TTA, ULAW, VOC, VQF, W64, WAV, WMA, WV, and more (over 30)
  • Output Formats: MP3, WAV, WMA, M4A, AAC, FLAC, AC3, AIFF, M4R, M4B, AU, APE, OGG, MKA

Once the files have been converted, you can download them individually or together in a ZIP file. There's also an option to save them to your Dropbox account.

Unlike the above programs that may work with specific operating systems only, you can use Media.io on any OS that supports modern browsers, such as on a Windows, Linux, or Mac computer.

08
of 08

Switch

Screenshot of the Switch audio file converter program
NCH Software

What We Like

  • Supports a quick conversion mode that you can run by right-clicking the audio file

  • Lets you change lots of advanced settings

  • Converts to and from a huge list of file formats

  • Can extract audio from video files and other sources

What We Don't Like

  • The program seems to stop working for some people after two weeks

  • Some security software might falsely identify the converter tool as a virus

Another free audio converter is called Switch (previously Switch Sound File Converter). It supports batch conversions and whole folder imports, as well as drag and drop and lots of advanced settings.

You can also use Switch to extract audio from your video files and CDs/DVDs, as well as capture audio from a live audio stream from the internet.

  • Input Formats: 3GP, AAC, ACT, AIF, AIFC, AIFF, AMR, ASF, AU, CAF, CDA, DART, DCT, DS2, DSS, DV, DVF, FLAC, FLV, GSM, M4A, M4R, MID, MKV, MOD, MOV, MP2 ,MP3, MPC, MPEG, MPG, MPGA, MSV, OGA, OGG, QCP, RA, RAM, RAW, RCD, REC, RM, RMJ, SHN, SMF, SWF, VOC, VOX, WAV, WMA, and WMV
  • Output Formats: AAC, AC3, AIF, AIFC, AIFF, AMR, APE, AU, CAF, CDA, FLAC, GSM, M3U, M4A, M4R, MOV, MP3, MPC, OGG, OPUS, PLS, RAW, RSS, SPX, TXT, VOX, WAV, WMA, and WPL

Make sure to use the download link in the "Get it Free" section.

Some of the advanced settings in Switch include deleting the source audio file after a conversion, automatically normalizing audio, editing tags, and downloading CD album details from the internet.

Another option worth noting is one that lets you set up to three preset conversion formats so that you can right-click on an audio file and choose one of those formats for a quick conversion. It's a huge time saver.

macOS (10.5 and above) and Windows (XP and newer) users can install Switch.

Some users have reported that the program stops letting you convert files after 14 days. If that happens to you, something you might try is starting the uninstall process and seeing if Switch asks you to revert to the free, non-trial version (instead of removing the program).

Some users have also reported that their antivirus software identifies Switch as a malicious program.

If you're having troubles with Switch, try using a different program from this list. The only reason it remains here is that it works perfectly fine for some people.