4 Ways to Convert AVI to MP3 on Windows and Mac [2026 Tested]

It's common to convert AVI audio files to the MP3 format. This is suitable for situations where you want to listen to a soundtrack, podcast, or speech on the go without keeping the large video file size. Whether you want to free up storage space, create a playlist for your mobile devices, or want to extract the audio for further editing, a proper conversion tool helps a lot. In this guide, we will explore the 4 most effective methods to convert AVI to MP3 in high quality, covering professional desktop software, open-source tools, and online tools so you can choose the one that best fits your needs.

How We Test and Pick the Reliable Ways

How We Test AVI to MP3 Converters

To make sure our recommendations are actually accurate and practical, we thoroughly tested each converter ourselves in a controlled local environment using real-world scenarios. For the test setup, we ran things on a Windows 11 Home (64-bit) PC and a Mac running macOS Sonoma v14.4. We used two specific test files to see how they handled different formats: a larger 500 MB AVI video using the H.264 codec with AAC audio, and a smaller 50 MB AVI file with legacy XviD codec and MP3 audio. While testing, we kept a close eye on a few key things, including overall speed (measuring the exact transcoding time from start to finish), audio quality (making sure it hit up to 320 kbps without losing frequency response), ease of use to see if the UI was actually user friendly, and feature sets like batch processing or audio trimming. Plus, we checked for privacy & safety issues like sneaky bundled installers, annoying ads, or bad server deletion policies.

Methods' Comparison

Method 1: Professional Desktop Software: AnyMP4 Video Converter Ultimate

AnyMP4 Video Converter Ultimate is a powerful desktop converter that can efficiently convert AVI to MP3. It is designed for fast, high-fidelity on both Windows and macOS. In our hands-on testing, it took about 15 seconds to convert a 2GB HD AVI concert video to a 320 kbps MP3, preserving 100% of the original stereo depth and dynamic range. Equipped with GPU hardware acceleration, you can enjoy fast and seamless video conversion.

It provides a wide range of video and audio profiles to choose from, besides the common MP3 profile. Moreover, you can even customize bitrate, sample rate, and other parameters. With its effective batch conversion feature, it allows you to process whole folders of AVI files without frame drops or metadata loss. The exported high-fidelity MP3 files import seamlessly into industry-standard editors like Adobe Premiere Pro, Audition, or DaVinci Resolve with zero audio sync or compatibility issues.

1. Get the best AVI to MP3 converter

Launch the AnyMP4 Video Converter Ultimate after you download and install it on your computer. Then click the Add Files menu to import the AVI videos you want to convert in the open-file dialog.

2. Choose MP3 and edit AVI videos

When the AVI videos appear in the library area, you can preview them via the provided editing tools. Also, you can adjust your video effects as needed.

Then, click the Output Format drop-down list and choose the MP3 High Quality profile as the output format, with a bitrate of 320 kbps.

3. Batch Convert AVI to MP3

Finally, locate the bottom area. Click the Save to option to set the destination folder. Once click the Convert All button, AVI videos will turn into MP3 format.

It is an easy and powerful tool for video and audio conversion. Without any professional knowledge, even beginners can learn how to use it with a clear and intuitive interface. If you want to process a large number of AVI files, it is the best choice with the batch conversion features and the GPU acceleration technologies. It is a paid tool, and you can use its trial version to evaluate.

Method 2: Free & Open-Source Tool: VLC Media Player

If you only need to process files occasionally and prefer completely free, open-source software with no trial limitations, the following open-source desktop tool is a great alternative.

Though known as a media player, VLC Media Player also serves as a video/audio converter, transcoding across Windows, macOS, and Linux. Because it is completely open-source and 100% free with no ads or hidden paywalls, it remains a go-to desktop utility for users to convert AVI to MP3 without installing additional single-purpose software.

Now, let's see how to use it to convert AVI to MP3.

1. Download VLC Media Player and launch it on your computer. Click Media and choose Convert/Save to access its convert feature.

2. Under the File section, click the Add button to import one or multiple AVI files you want to convert. And then click the Convert/Save button to proceed.

3. Click the wrench-shaped icon to set MP3 as the output format. Select the destination file you want to save. Then click Start to begin your conversion.

Though its interface is a little dated, its conversion feature is powerful enough to meet many people's occasional conversion needs. VLC can also convert videos to MP3 in batch. However, it lacks advanced features for you to edit files. If you want precise control over the file parameters and video effects, AnyMP4 Video Converter Ultimate is your choice.

Method 3: Online AVI to MP3 Converters (No Software Installation Required)

If you want quick, one-off conversions, online video converters are your choice to extract MP3 audio directly inside your browser without installing third-party applications. Read on to learn more.

3.1 CloudConvert — Best Online Tool for Large AVI Files (Up to 1GB)

If you'd rather extract audio online without bothering to install extra software, CloudConvert is honestly a pretty solid browser-based option. It's super versatile and lets you import files straight from your local drive, Google Drive, Dropbox, or even direct URLs. Unlike a lot of super restrictive web tools out there, CloudConvert actually handles larger video projects pretty well—offering a surprisingly generous 1 GB limit on its free tier and letting you convert up to 5 files at the same time.

1. Open this website in your browser. Then click Select Files to add the AVI file you want to convert.

2. Select MP3 as your output format from the Select Format option. It also allows you to adjust the video settings.

3. After that, you can click Options to customize sample rate, bitrate, volume, and others. Lastly, click the bottom Convert button, and then you can get the converted video.

3.2 Zamzar — Clean and Simple Cloud-Based Converter

Zamzar is a classic, web-based file converter celebrated for its minimalistic, three-step workflow and reliable performance. Ideal for users seeking a quick, hassle-free conversion without navigating complex settings, Zamzar allows you to extract MP3 audio directly from AVI files stored on your local drive or via URL. Operating entirely within your browser, it provides a clean and straightforward environment for lightweight media tasks across any device.

1. Navigate to the Zamzar AVI to MP3 official website. Then click Choose Files to add the AVI file you want to convert.

2. Click the Convert To option to open its drop-down list and select the MP3 format.

3. Click Convert Now to convert the AVI to MP3 instantly. When the process is done, click Download to save the converted MP3 file to your computer.

The two online tools above give you great convenience for converting videos. But the big problems with these types of tools are size limits and security. If your AVI files exceed the limits of these online tools or if you need to convert dozens of files at once, we strongly recommend downloading AnyMP4 Video Converter Ultimate for free to overcome any network or size restrictions.

FAQs of Converting AVI to MP3

Conclusion

This post has identified and shared the 4 best ways to convert AVI to MP3. They all have unique benefits. AnyMP4 Video Converter Ultimate offers an all-in-one choice for you to batch convert and edit files. If you work on a zero budget, choose VLC for robust desktop conversion, or CloudConvert for small web tasks. CloudConvert and Zamzar give easy ways to convert files.