15 Best Free Audio Converters [2025]

• Top free audio converters include Movavi for comprehensive features and ease-of-use, specialized tools like Pazera for custom encoding, and Audio Convert for quick online conversions.
• Desktop software offers more advanced features like batch processing and offline privacy, while web-based browsers provide convenience but have limitations.
• Choosing a free audio converter should take into account your file format requirements, technical expertise, and volume needs.
• For best results, choose a platform that has an enjoyable drag-and-drop interface coupled with a wide feature set for complete flexibility in audio conversions.

Ever since I got my first MP3 player in 2003, I’ve been converting audio formats. Back then, it was to rip and convert my fledgling CD collection. Now I use file converters every day, whether it’s for grabbing audio from videos or switching formats to use in my TikTok content.

I don’t know about wine or cars, but I am a collector (dare I say), a connoisseur of the best free audio converters, and from my testing… these are the finest available:

• Best Overall: Movavi Audio Converter
  Wide 180+ formats, simple interface, and reliable video extraction.
• Best for Speed: Convertio
  Two clicks in your browser and you're done.
• Best for Mac: Switch Audio File Converter
  Works well on Mac with audio effects and fast batch processing.
• Best for Privacy: Free Audio Converter
  All conversions happen offline, keeping your files completely private.
• Best for Audio Editors: Audacity
  Full editing suite edits and converts in one program.

Why I picked it: For me, Movavi's audio converter is the top pick. It's super easy to use, which means there's no need to be tech-fluent.

The simple drag-and-drop interface makes conversion quick and intuitive, so you can have your complete conversion process done in no more than a few minutes.

It offers deep audio conversion functionality across 180 formats. This includes all the most popular options like MP3, WAV, and FLAC, among others. It works particularly well when converting files into MP3 so that you can drop your music or audio onto any popular device or gadget.

The feature I use most regularly is the audio extraction from video, which allows me to pull soundtracks and audio out of video clips. It's simple, comprehensive, and converts audio without losing any of the original sound quality.

The program is widely liked among users, boasting 4.8 rating on G2 and 5 stars on Capterra.

Why I picked it: Sometimes downloading software and installing it can be a hassle. Movavi's online audio converter avoids this and gets the job done fast.

If I'm in a rush, I can just head over to the tool, drop the file in, choose the output format, and click convert. Plus, there's also the ability to compress audio files if they're too large for the job I'm doing.

It's lighter than the desktop version, but it is free to use, which means converting songs is super speedy in just a couple of clicks. There's no shortage of compatible formats with all the usual requirements: MP3, AAC, WAV, WMA, and more.

Surprisingly, for a free tool, you can even adjust the size and sound quality of your audio files by switching up the bit rate and handling HD audio.

The program is widely liked among users, boasting a 4.8 rating on G2 and 5 stars on Capterra.

Why I picked it: You can run it directly in your web browser, there's no file restriction, and it supports batch conversion.

Just like other web converters, you drop your file in and hit convert. Its advantage over many of the competitors is batch conversion. Although large banner ads do kind of ruin the user experience. When I dug deeper, I was pleased to see it handles over 300 audio formats, including several rare codecs. In addition, there is no limit on file size, then it makes for a modern platform that requires minimal technical knowledge or setup.

The program is widely liked among users, boasting 4.5 star ratings on its website.

Why I picked it: It's lightweight but easy to get on with a piece of software. You can download, install, and get started in just a few minutes.

Back when I used to use Windows PCs a lot, my go-to converter for a while was Free Audio Converter from DVDVideoSoft.

A neat feature in it is the audio joiner. I used to use this a lot to add multiple audio files to get one big playlist in a single file. If you worry about privacy, then all conversions happen offline on your computer, so all your audio is kept private for sensitive files.

It's free, no need to sign up or deal with file limits… it just works.

DVDVideoSoft is widely liked among users, boasting 4.1 ratings on Trustpilot.

Why I picked it: It seems to have fewer frills than other audio extraction tools and is pure function, which means the app supports over 70 audio formats.

I'd heard several other people recommending Pazera, so I wanted to give it a good test for myself.

What's handy is that it actually allows you to extract them out of video files without any loss of quality. If you're a non-techie user, there are some predefined settings which allow you to get going quickly, but for more advanced people, you can play around with custom audio encoding settings.

Pazera is widely liked among users, boasting a 9.8/10 rating on VideoHelp.

Why I picked it: I added this to my list after testing, as it works well on Mac, whereas other downloaded software often sticks with Windows.

It has all the same features as many of the other converters: switching your audio formats or extracting from MP4 files.

I did enjoy some of the added features, like adding audio effects to reduce noise, equalization, or amplify volume, without too much technical difficulty. What's notable is that even when compressing and switching formats, it was still lightning fast with quality outputs in just a few minutes.

Plus, you can run batches, so if you've got a lot of audio to convert on your Mac, then this is a nice option.

Switch is widely liked among users, boasting a 4.8 rating on G2 and 4.1 on Apple.

Why I picked it: What caught my eye in testing Freemake was the ability to actually save audio into Google Drive or Dropbox.

Many other software programs might allow you to import music from these areas, but often fall short of saving to Google Drive.

As a Google native user, being able to convert audio files in batch or even join audio files together and link them into my Google Drive is a real bonus, particularly when I'm working with other team members on those cloud platforms.

As with any top audio converter, it's fast, easy to use, and converts all the major formats.

Freemake maintains solid ratings, with a 3.7 on G2 and 4.0 on Capterra.

Why I picked it: When I took Convertio for a spin with some audio files, it did exactly what it says on the tin from the web browser. Two clicks and you've got your converted file across dozens of formats.

If you just need a quick job and don't need to worry about downloading to Mac or Windows 11, it's been designed to make it easy for anyone to convert files. However, its feature set is limited compared to competitors, with a 100MB maximum file size and no ability to actually extract audio from video.

Convertio is widely liked among users, boasting a 4.9-star rating on Trustpilot.

Why I picked it: Zamzar is a wide-ranging file conversion tool that excels in sound conversion and extracting audio from video.

For people who need wider media conversion, you can also convert and compress PDFs to JPEGs, MP3s into text, or MP4 to MP3. So if you want to convert your audio into a text output, it can handle that.

Although for larger file sizes, prices can start to add up to $39 per month. For developers, there's an API, so actually you can convert files within your own applications: a handy, unique feature to put Zamzar in the top 10.

ZamZar is widely liked among users, boasting a 4.9-star rating on Trustpilot and 4.6 on Capterra.

Why I picked it: FFmpeg wasn't one of my favorites, but it needs to be included in this list as it serves a strong use for developers working with multimedia frameworks.

It allows them to decode, transcode, encode, stream, and play almost any media file.

It's open source, which means that anyone around the world can use it and tailor it to their needs, including using it as an audio file converter. If you can grasp how it works, then it's free to use.

It does have a learning curve, so if you haven't ever heard of GitHub, then this isn't going to be for you.

FFmpeg is widely liked among users, boasting a 4.7 rating on Capterra.

Why I picked it: The wonderful thing I found about MediaHuman is its nice combination of power and ease of use.

It offers a wide range of features, and it was a breeze to convert WMA songs into MP3. Actually, it was a breeze to convert several WMA songs to MP3 in one go.

Adding to this, many customers love the ability to convert FLAC to Apple Lossless without losing data. It gets the job done without being crammed full of excessive features.

MediaHuman is widely liked among users, boasting a 4.9 rating on Trustpilot.

Why I picked it: Hamster was one of the fastest to install with a clean, simple interface. You can get running in a very short space of time.

It's compatible with a wide range of operating systems and devices, so it's particularly useful if you're running older technology or operating systems and want batch conversion.

It's a drag-and-drop interface: you fill up a task list, select the device you're looking to convert to, and let it do its thing. It's almost impossible to get lost or make mistakes in this software.

Hamster maintains solid ratings among users, with a 3.3 rating on Softonic.

Why I picked it: In testing Fre:ac, I found it to have a useful feature that many people might still need. Not only does it convert audio, but it actually helps you rip CDs.

So if you've got a stack of old discs in your car that you want to get onto your phone or laptop, this is a useful piece of kit.

Plus, when you're doing this, it can automatically query songs and write the data into the file. As it's completely open source, it's free to use and can even run off your flash drive or in multiple languages.

These are some unique features, although it can get a bit complicated to set up if you want some more advanced options.

Fre:ac maintains solid ratings among users, with a 4.6 rating on SourceForge.

Why I picked it: As I often use unique audio in my content creation, CapCut actually offers audio file conversion in its features.

Although its formats are a little more limited to MP3, WAV, AAC, and FLAC, it is high-quality and links with the rich audio editing tools of the app. However, wider format support is limited compared to dedicated conversion tools.

Capcut is widely liked among users, boasting a 5-star rating on Apple and 3.5 on Play.

Why I picked it: Now you might know Audacity as an audio editor, but it works nicely as an audio converter too.

So if you want something that is integrated into your editing process, this is a nice free option. Although most serious editors probably have a professional editing suite, which makes Audacity redundant, it is why it doesn’t sit higher up the list. To be honest, it’s probably a little overkill as a platform for most conversion needs.

Audacity is widely liked among users, boasting a 4.5 star rating on G2.

So there you have it, my top 15 online audio converters. During testing, I wanted to make sure there was a tool that covered every base. Starting with the simple yet powerful platform Movavi, which handles most audio conversion tasks you can throw at it, whether that’s the full desktop software or the speed online companion. Then high on my list came choices like Free Audio Converter, which makes it easy to join multiple tracks, although it is limited to Windows. That’s why you’ll find browser-based options like ZamZar, which includes developer APIs. Plus, Freemake’s comprehensive Google Drive and Dropbox integration is super handy for teams working in the cloud.