MP3 remains one of the most widely used audio formats globally. Whether you want to extract audio from a video, convert music files for mobile listening, or prepare audio for podcasts, an MP3 converter is an essential tool.
The good news? You don’t need expensive software to accomplish the task. There are many free MP3 converters that allow you to convert audio and video files quickly — either online or on your desktop.
In this guide, we’ll compare the best free MP3 converters in 2026, explain how they work, and help you choose the right one based on your needs.
What Is an MP3 Converter?
An MP3 converter is a tool that converts audio or video files into the MP3 format. For example, you can use it to:
- Convert MP4 videos into MP3 audio
- Change WAV, FLAC, or AAC files into MP3
- Extract audio from YouTube videos
- Reduce file size while keeping acceptable sound quality
MP3 is popular because it offers a good balance between audio quality and file size, making it ideal for streaming, mobile devices, and sharing.
Online vs Desktop MP3 Converters: Which One Is Better?
Before choosing a tool, it’s important to understand the difference between online and offline converters.
Online MP3 Converters
These work directly in your browser.
Best for:
- Quick one-time conversions
- Small files
- Users who don’t want to install software
Limitations:
- File size restrictions
- Slower speeds
- Potential privacy concerns
Desktop MP3 Converters
These require installation on your computer.
Best for:
- Bulk conversions
- Large files
- Better audio control and quality
Limitations:
- Requires storage space
- Setup time
Best Free MP3 Converters in 2026
1. ByClick Downloader
Best Free MP3 Converters - ByClick Downloader
With ByClick Downloader, you can download videos from YouTube and turn them into MP3 files on a single platform. It's possible to make downloads from other websites, too, like Vimeo, Facebook, and Instagram. But pay attention to the copyrights.
To convert the file into MP3, upload it, then select the format, choose the quality, and download it. It's very simple, with just a few clicks, your MP3 file is ready, and you can enjoy it on your computer, your smartphone, or other devices.
Key features:
- Video downloader
- High quality
- Easy to use
- Download multiple videos at the same time
2. 4K Video Downloader
Best free MP3 converters - 4K Video Downloader
4K Video Downloader is a simple solution if you are looking to convert video files to MP3 using desktop software. Once you install the application on your computer, all you need to do is drag and drop the video you want into the software, and the app will automatically generate an MP3 file for you that will be stored on your computer.
We enjoyed using this software because it’s fast, easy-to-use, has a user-friendly interface, and offers what you want without any complications or unnecessary steps. It also allows you to upload multiple videos at the same time, and extract audio in other formats, including M4A and OGG.
Another advantage is that you can extract audio in high-quality, with bitrates up to 320kbps. Besides, it has free versions for Windows, macOS, and Linux.
Key features:
- Convert videos to audio quickly
- Extract audios in MP3, M4A, or OGG
- Bulk import video files
- Extract audio from your videos with bitrates up to 320kbps
3. CapCut
Best free MP3 converters - CapCut
The CapCut desktop version allows you to convert video files into MP3 by uploading your video, then choosing to export only the audio. It’s possible to extract the audio not only in MP3, but also in WAV, AAC, and FLAC.
One essential feature is that Capcut ensures you won't lose audio quality with the file conversion. The app also counts on built-in cloud storage that enables you to safely store your audio and video projects online. Moreover, you will find several other tools to edit videos and audio on this platform.
Key features:
- Convert videos to audio without losing sound quality
- Save audio in MP3 and other formats
- Privacy and data security
- Built-in cloud storage
4. Movavi
Best free mP3 converters - Movavi
Movavi is one of our top choices if you are looking for an online MP3 converter. It doesn't require any subscription. You just need to access the website, upload your file, choose the format, and click on "Download".
You can also extract the audio and download it in other formats, such as AAC, DTS, and WMA. What caught our attention while using this solution is the simplicity and speed. In a few seconds, you can get your file without any hassle. There is also a desktop version, which includes other features like batch conversion and unlimited file size.
Key features:
- Choose the file format
- Fast
- Online solution
5. Any Video Converter
Best free MP3 converters - Any Video Converter
The Any Video Converter desktop software is fast and simple to use. It provides multiple options to choose the format you want to convert a video file into, including not only MP3 but also M4A, OGG, and WAV.
It supports over 1,000 video and audio formats for input, and allows you to convert files in bulk as well. Additionally, the free version doesn't include ads, and it is compatible with both Windows and macOS systems.
Key features:
- Free, bulk, and unlimited video & audio conversion
- Support 1000+ video and audio formats for input
- Upgraded GPU acceleration, 130X ultra-fast
- Lossless video compression to enhance shareability
- 20+ built-in video editing tools
How to Convert to MP3 Without Losing Quality
To maintain the best sound quality:
- Choose a bitrate of 192 kbps or higher
- Avoid repeated re-conversions
- Use desktop tools for large files
- Start from high-quality source files
Lossless formats like WAV or FLAC produce better MP3 results than already compressed audio.
Is It Legal to Convert Files to MP3?
It depends on the source.
You can legally convert:
- Your own recordings
- Copyright-free audio
- Files you own the rights to
Converting copyrighted material (e.g., YouTube music) without permission may violate local copyright laws.
How to Choose the Right MP3 Converter
Choose based on:
- File size: Desktop tools handle large files better
- Frequency: Occasional vs regular use
- Privacy: Offline tools are more secure
- Quality needs: Look for bitrate control
- Batch processing: Needed for libraries
