15 Best Free Audio Converters

Edited by Geoffrey Scott

November 23, 2021

Having trouble playing an audio file on your PC or smartphone? Try converting it to another file format with a free audio format converter.

We’ve narrowed down the 15 best free audio converters available for Mac and PC – highlighting their compatible operating system(s), input/output formats, pros and cons, and online ratings/reviews.

Program

OS

Best for

Download

Movavi Audio ConverterMac OS X 10.10 or higher, Windows 7/8/10 (and older if needed)Beginners (simple interface, 200+ presets, tutorials, customer support available)
Movavi Online ConverterBrowser, Mac OS X, Windows 7/8/10Converting larger audio files directly in your browser
Free Audio Converter (by DVDVideoSoft)WindowsBatch converting files to MP3
Pazera Free Audio ExtractorWindows (Vista, 7, 8, 10)Intermediate to expert audio enthusiasts who want advanced audio-editing settings
Switch Audio File Converter SoftwareWindows (8, 10, Vista), Mac OS, AndroidConverting a group of different audio files into a single audio codec
FreemakeMac, PC, and AndroidMerging separate audio files into a single file
FileZigZagN/A (browser converter)Users who don't want to download software (or can't)
ZamzarN/A (browser converter)People who need support for many file types (1,200+ available)
Format FactoryWindowsRepairing damaged audio files
OxelonWindows 98, Me, 2000, XP, Vista (nothing newer)Anyone interested in developer plugins and customization features
ConvertillaWindowsQuick downloads via Internet Download Accelerator
FFmpegMac OS X, Microsoft Windows, LinuxDevelopers (or tech-savvy users) and people looking to convert rare audio file types
MediaHuman Audio ConverterMac OS X 10.6 or later, Windows 2003 or laterSplitting audio files automatically (via .CUE files)
Hamster Free Audio ConverterWindows (32 and 64-bit)Its device compatibility (200+ devices)
Fre:acWindows, macOS, Linux, FreeBSD, HaikuUsing as a portable converter (can save it to your flash drive)

Free audio conversion software

OS: Mac OS X® 10.10 or higher, Microsoft® Windows® 7/8/10 (versions for older operating systems also available)

Input: OGG, Opus, AIF, AIFF, AU, SND, F4A, M4A, M4B, FLAC, M4R, MKA, MP3, WAV, WMA, MP+, MP1, MP2, AIFC, APE, MPC, MPEG-3, AAC, AC3, and more

Output: MP3, OGG, AAC, AIFF, FLAC, M4A, M4B, M4R, MKA, WAV, WMA, AU, F4A

TopTenReviews rating: 3.5 out of 5 stars

Movavi Audio Converter can convert audio files to all popular formats, extract and save the sound directly from video files, and ultimately produce high-fidelity conversions. It’s also fast and largely error-free because of frequent support and optimization.

Movavi’s Audio Converter software is available on all major operating systems and allows beginners and experts alike to convert and modify audio files. If you only need to convert to or from MP3, use the free version of the program. To edit or manipulate your audio, try the free trial of the full version and see if it meets your needs.

Pros:

  • HD video and audio conversion support, 180+ available file formats
  • Presets for 200+ devices
  • Simple interface
  • Easy for beginners to use
  • Shrink audio and video file sizes while maintaining fidelity
  • Batch music converter

Cons:

  • Free version doesn’t include audio editing
  • Can’t pull videos from YouTube

OS: any (online browser tool)

Input: MP3, M4A, AAC, OGG, WMA, FLAC, WAV, AIFF, MP2, MPA, MMF, OPUS, AIF, CAF, AC3, M4B, OGA, RA, VOC, DTS, AU, GSM

Output: AAC, AC3, AIF, AIFF, AU, CAF, DTS, FLAC, GSM, M4A, M4B, MMF, MP2, MP3, MPA, OGA, OGG, OPUS, RA, VOC, WAV, WMA

Movavi Online Video Converter is also in contention for the best free audio converter, regardless of the fact that it has “video” in its name. Whether you want to convert audio right on the page or prefer downloading the software, all options are at your disposal.

Adjust file size and quality on the fly, convert single files or batches quickly, and upload files as large as 2 GB. Movavi’s technology adapts to your needs, can be used across any platform, and can handle audio conversions of both common and rarer audio codecs.

Pros:

  • Fast conversions
  • Convert larger files in your browser
  • Adjust file size and quality without a download
  • Helpful support staff

Cons:

  • Free audio converter maxes out at 100 MB files

OS: Windows

Input: AAC, AC3, AIFF, APE, FLAC, M4A, M4B, MKA, MP3, OGG, RA, TTA, WAV, WMA

Output: MP3, M4A, FLAC, ALAC, AMR, WAV, WMA

CNET rating: 3.1 out of 5 stars, 26 good reviews out of 46

Free Audio Converter by DVDVideoSoft helps you quickly convert different types of audio, although it’s best known for high-quality MP3 conversions.

In addition, this software lets you batch convert audio of varying file types to a specific file output (like MP3), which is useful if you have a collection of files you want to use on a new device. You can also create presets for future conversions.

Pros:

  • Batch convert different file types simultaneously
  • Produce high-quality MP3s
  • Lossless audio conversions help maintain sound quality
  • Simple settings

Cons:

  • Lacks effective support
  • Limited features

OS: Windows 7, 8, 10 (or Vista)

Input: AVI, AAC, AC3, APE, AMV, ASF, DIVX, FLV, MPG, MPEG, MPE, MKV, MOV, M2TS, MP4, M4V, MXF, MKA, OGG, VOB, RMVB, SWF, WEBM, WMV, 3GP, 3GPP, 3G2, 3GP2, 3GA, and more

Output: MP3, AAC, AC3, E-AC3, Ogg-Opus, Ogg-Vorbis, WMA, FLAC, M4A-AAC, M4A-ALAC, WV (WavPack), MKA-Opus, CAF-Opus, AIFF, WAV

CNET rating: 4.25 out of 5 stars, 82 good reviews out of 96

Pazera Free Audio Extractor can be used to convert over 70 audio and video formats. You can also use this software to extract audio clips from video without losing audio quality, split files into pieces (like chapters of an audiobook), and customize encoding parameters like sampling frequency, audio bitrate, and more.

Pazera’s interface is easy for new users to pick up, and includes predefined settings to make things even easier for beginners. However, Pazera’s advanced settings are more suited for experienced audiophiles.

The Pazera app comes with support for 23 languages, making it one of the more accessible free audio file converter products online.

Pros:

  • Preset “profiles” for beginners
  • Drag and drop file conversion
  • Split files into without hurting audio quality
  • Advanced features for audio enthusiasts

Cons:

  • No “Help” file
  • Output to non-MP3 file formats sometimes changes the volume level

OS: Windows (8, 10, Vista), Mac, Android

Input: AAC, AC3, AMR, APE, ASF, AVI, CAF, CDA, FLAC, M2A, M3U, M4U, M4B, M4R, MKA, MKV, MP1, MP2, MP3, MP4, MPA, OGA, OGG, OPUS, WMA, WMV, and more

Output: AAC, AC3, AMR, APE, CAF, CDA, FLAC, M3U, M4A, M4B, M4R, MP1, MP2, MP3, MPC, OGG, OPUS, RAW, RSS, WAV, WMA, and more

TopTenReviews rating: 4.5 out of 5 stars

Switch Audio File Converter is another audio converter (free download) worth exploring. While it offers the main features of other top free audio converters (robust audio codec support, batch conversions, and audio extraction from video), Switch also has an interesting range of advanced settings as well.

A few of those advanced settings include:

  1. Preset conversion formats
  2. Deleting the original audio file(s) after conversion
  3. Automatically pulling information about converted songs from an online database
  4. Instantly normalizing the audio of the converted file

Although Switch is a popular freeware audio converter for Mac and listed high in the App Store, it can also be downloaded as a free audio converter for Windows 10, Vista, and even Android.

Pros:

  • Auto-delete old audio files after conversion
  • Create (or use existing) presets
  • Batch conversions
  • Connect music audio files with their relevant information (label art, track name, artist)

Cons:

  • User-noted issues with the product after repeated use

OS: Mac, PC, and Android

Input: MP3, AAC, OGG, FLAC, M4A, M4R, AIF, AIFF, AC3, APE, CAF, MKA, MLP, MP1, MPC, MP2, MPEG3, MP+, W64, WMA, WAV, and more

Output: AAC, AC3, APE, AMR, ADTS, DTS, FLAC, AIFF, MP2, MP3, M4A, M4R, OGG, VOC, Vorbis, WAV, WMA, (Pro & Lossless), and more

TechRadar rating: 4.5 out of 5 stars

Freemake is a free audio converter for Windows, Mac, and Android that converts audio files into codecs usable on most major electronic devices (like smartphones and tablets).

In addition to standard conversions, Freemake allows you to merge multiple files (of varying formats) into a totally new audio file. You can also run more than one conversion at a time, which provides additional flexibility.

You can even automatically move your new audio codecs directly to your preferred cloud storage (Dropbox and Google Drive are both compatible).

Pros:

  • Combine multiple files
  • Cloud storage
  • Lossless audio
  • Support for simultaneous file conversions

Cons:

  • Free version has length restrictions in place
  • Slower than other free sound file converter software

OS: any (online browser tool)

Input: AIF, AIFF, AAC, AMR, AC3, 3GA, AU, CAF, FLAC, M4A, M4R, MP2, MP3, MPGA, OGA, OGG, OMA, OPUS, QCP, WAV, WEBM, WMA, and more

Output: AAC, AC3, AIF, AIFC, AIFF, AMR, AU, FLAC, M4A, M4R, MP3, MMF, OPUS, OGG, RA, WAV

Lifewire review: “FileZigZag is a pretty good choice if you're after an image converter or a document converter. However, due to the time it takes to both upload and convert a file, FileZigZag isn't our first choice as a video converter or audio converter.”

FileZigZag is free audio converting software that facilitates conversions to and from most major audio codecs. To use FileZag, visit their homepage, click “Browse for file”, and find your audio file on your computer.

Your original and converted files are deleted within a month to protect your privacy.

Your download will directly move to your browser upon completion (or you can choose to have an email sent to you once it’s done).

Pros:

  • No download required
  • Supports most common audio file formats

Cons:

  • Files must be less than 50 MB
  • Free version limits users to 10 conversions/day

OS: any (online browser tool)

Input: APE, AAC, AC3, AIFC, AIFF, AMR, CAF, FLAC, M4A, M4B, M4R, MIDI, MP3, OGA, OGG, RA, RAM, WAV, WMA, 3GA

Output: AAC, AC3, FLAC, M4A, M4R, MP3, MP4, OGG, WAV, WMA

Lifewire review: “Zamzar is a good free file converter that supports lots of file formats. It's really easy to use and lets you convert files online without having to download any software. It's not the first service or software I'd try, but it works for what it does.”

Looking for an audio converter for a PC that doesn’t require a download? Zamzar can get the job done.

To use Zamzar, upload the file or copy-paste the URL where your audio file is hosted, then select your preferred codec. Your many output options are accessible in the dropdown menu once you’ve uploaded your file.

Pros:

  • No download required
  • Supports 1200+ file formats (audio, images, CAD, documents, video)
  • Email support

Cons:

  • Slower conversion
  • Free version has volume-based restrictions

OS: Windows

Input: MP3, WMA, OGG, AAC, WAV, MP4, 3GP, AVI, WMV, SWF

Output: MP4, 3GP, MPEG, AVI, WMV, FLA, SWF, MP3, WMA, AMR, OGG, AAC, WAV, JPG, BMP, PNG, TIF, ICO, TGA, PDF

TechRadar rating: 4.5 out of 5 stars

Format Factory is an audio converter for Windows users that lets you convert audio, rip CDs, merge files, and even recover damaged files. You can even save soundtracks from (or overlay audio on top of) video with ease.

This software can be set for 62 different languages, making it one of the more internationally accessible pieces of free audio file converter software on the market.

Pros:

  • 62-language support
  • Batch conversions
  • Convert CDs to audio files
  • Repairs damaged files

Cons:

  • Distracting advertisements
  • May trigger your antivirus software

OS: older versions of Windows

Input: AC3, AAC, FLAC, G726, GSM, MP2, MP3, PCM ALAW, PCM MULAW, PCM 8/16/24/32 bit, SONIC, SONICLS, VORBIS, WMA V1, WMA V2, WAV, and more

Output: ASF, AVI, AC3, AAC, AIFF, AMR, AU, DV, DVD MPEG2, FFM, FLV, GIF, MOV, MP4, MPEG1, NUT, PSP, VOB, M1V, M2V, M4V, FLAC, MMF, MP2, MP3, OGG, VOC, WAV, 3GP, 3G2, and more

CNET rating: 3.4 out of 5 stars, 8 good reviews out of 14

Oxelon is a Windows audio converter that’s been around a while. Although it lacks certain high-level features available via other software, Oxelon does have a few tricks up its sleeve – allowing users to adjust audio sampling rates and bitrates.

Pros:

  • Batch file conversions
  • Convert via drag-and-drop
  • Developer-supported plugins

Cons:

  • No Google Chrome integration
  • Distracting pop-ups

OS: Windows

Input: AVI, APE, AAC, ASF, FLV, FLAC, MPG, MOV, WMV, M4V, MP3, MP4, MKV, OPUS, WAV, WEBM, 3GP

Output: AAC, ASF, APE, AVI, FLV, MKV, MPG, MOV, M4V, MP3, MP4, OPUS, FLAC, WAV, WEBM, WMV, and 3GP

Softpedia rating: 4.7 out of 5 stars, 34 good reviews out of 38

Convertilla is free audio conversion software for Windows only (sorry Mac users).

Use this tool to turn most major audio codecs into other commonly used file types (including those used on your phone).

Is audio conversion not enough? Tweak the quality using Convertilla’s huge range of presets – options ranging from Android and iOS to gaming consoles such as Sony PSP and Microsoft XBOX 360.

Pros:

  • Clean UI/UX
  • Small file size (easy to download)
  • Adjusting audio quality is simple

Cons:

  • Missing high-level features for audiophiles

OS: Mac OS X, Microsoft Windows, Linux

Input: AAC, ADPCM, aptX, ATRAC1, DPCM, AC-3, G.729, GSM, MP1, MP2, MP3, MPEG-4, MLP, PCM, WMA, and many more

Output: AAC, ADPCM, aptX, ATRAC1, DPCM, AC-3, GSM, MP1, MP2, MP3, MPEG-4, MLP, PCM, WMA, and many more

Slant rating: 4.5 out of 5 stars, 55 good reviews out of 56

FFmpeg is an open-source file converter that combines the work of developers from around the world and hones it into maybe the most robust conversion tool you can find on the internet. Understandably then, it can of course be used as an audio file converter – free to use as well if you understand how it operates.

But that’s the tricky part, specifically the learning curve. This tool was created by computer developers who have a good understanding of codebases, audio codecs, containers, and the like. If you’ve never heard of Github, you should probably look elsewhere for your audio-converting needs.

Pros:

  • Customizable if you’re a developer
  • Runs on any OS
  • Huge range of file inputs and outputs

Cons:

  • Not friendly for non tech-savvy people

OS: Mac OS X 10.6 or later, Windows 2003 or later

Input: AAC, ALAC, APE, WMA, WAV, MP3, M4A, OGG, FLAC, WavPack

Output: AAC, WAV, FLAC, OGG, WMA, MP3, AIFF, Apple Lossless format, and more

MacUpdate rating: 4.2 out of 5 stars, 33 good reviews out of 40

MediaHuman Audio Converter has a clean interface and handles most major audio-conversion tasks. If you want to splits tracks, pulls audio from video, and even export to iTunes via your audio converter, download MediaHuman’s software and give it a try.

MediaHuman Audio Converter is also a good choice for users who have an extensive collection of music organized in folders, because large batch conversions that retain your folder structure are built into the program.

Pros:

  • Helps you automatically split .CUE files
  • Folder retention is helpful to keep your audio organized

Cons:

  • User-reported issues like certain file types not converting correctly

OS: Windows (32 and 64-bit)

Input: AC3, AMR, FLAC, AIFF, OGG, MP3, MP2, WAV, WMA, ACC, VOC, and RM

Output: AC3, AMR, FLAC, AIFF, OGG, MP3, MP2, WAV, WMA, ACC, VOC, and RM

PCWorld review: “Depending on the format that was used to create the video (I’m looking at you, MKV), it might not play properly. You need a converter, a utility that changes a video from one format to another. And I’ve yet to find one that’s easier to use (or has a better name) than Hamster Free Video Converter.”

Hamster Free Audio Converter is another tool at your disposal when converting audio. With a gentle learning curve and usability on most modern electronic devices, this software can help you convert audio files without overwhelming you with tons of intricate (and often unnecessary) features.

Pros:

  • Easy to use
  • Compatible with 200+ devices

Cons:

  • Lacks in settings for adjusting audio quality
  • No longer available on the developer website

OS: Windows, macOS, Linux, FreeBSD, Haiku

Input: AAC, APE, FLAC, WMA, Opus, Ogg Vorbis, MP3, M4A, Speex, WAV, and more

Output: AAC, APE, FLAC, WMA, Opus, Ogg Vorbis, MP3, M4A, Speex, WAV, and more

CNET rating: 4.3 out of 5 stars, 92 reviews

Fre:ac is a regularly updated audio converter usable on major (and obscure) operating systems. These updates help address bugs encountered by users, making the experience running their software ultimately better for you, the end-user.

Its interface comes in multiple languages, the software is completely open-source, and you can even place it on a flash drive. So if you ever need to help out a parent with their audio conversion needs, pop Fre:ac on your flash drive and get to work.

Pros:

  • Portable
  • High-quality CD ripping

Cons:

  • Advanced options aren’t as intuitive to use as other audio converters

Summary

We hope our run-through of 15 top online audio converters helped you determine your top option(s) to convert audio on your computer. Whether you’re looking for the best free music converter for converting to MP3 or need something with more features, there’s definitely an option online to better meet your needs.

Still unsure which converter to use? Here’s a quick look at the most notable things to pay attention to when picking out your audio converter:

  • Interface: make sure that whatever audio-conversion tool you end up downloading is easy enough for you personally to use. Most developers try to make software that suits their own audience, and if their audience is a bunch of computer developers (and you’re not) then you’ll struggle to use their tool even if you like what their tool can do.
  • Features: what do you specifically need from your audio converter? If you’re just looking to convert a few old audio files to MP3, then you don’t need a tool that helps you adjust file size and quality, do batch conversions, or help you organize songs into album folders.
  • Supported file formats: while it’s a good idea to choose the audio conversion software with the biggest range of input and output formats, you ultimately only need a converter that will input your files and output the new audio codec you want. If you can’t find input and outputs on the developer’s website, Wikipedia can usually help.
  • Reviews and star ratings: want to avoid a headache using software that’s buggy or lacks good customer support? See what users are already saying about the audio converter you’ve got your eye on.
  • Customer support: developers who keep their pages updated and have clear avenues to reach their customer service team can be the difference-maker when choosing between audio converters. Investigate customer support options before finalizing the software you choose.

Geoffrey Scott

A prolific content creator and copy editor with 5+ years of experience writing blog posts, landing pages, product reviews, product copy, and more. Graduated from the University of Nevada with an MA in History in 2014 and got swept up into the world of digital marketing not long afterward. Geoff is a regular contributor on GoDaddy.com’s Garage Blog and has been quoted on major websites like Adobe, Monster, Recruiter, and GlassDoor.

Frequently asked questions

Which is the best audio converter?

For Windows 10 users, the best audio file converters are:

If you’re on a Mac, the top audio converters are:

And our top browser audio file converter is FileZigZag, because it offers more conversions per day than its competitors.

What is the best audio converter software?

After a thorough review of audio file conversion software available online, the best and most robust products on the market today are:

What is the best free MP3 converter?

What is the best free audio converter for Windows 10?

The best free audio converter for Windows 10 is either:

What is the best free audio converter for Android?

The best free audio converter for Android devices can quickly help you convert audio files to different codecs directly on your smartphone or tablet. Here are our top three: