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WorkinTool Free Online Audio Converter | Convert Audio Files Online for FREE

Want to have a free online MP3 converter to convert Apple's proprietary file format M4A to a more compatible MP3 file? Use our online audio converter to convert audio files from their original formats to others without losing quality.
Completely FREE with no ads and signup
Batch conversion
Multiple formats supported
Two files at a time, up to 5 MB. Supported formats: MP3, MOV and MKV.
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Select file or drop file here
Your files are secure

How to Convert Audio Files Online for Free?

Step 1
Click on the green + icon to upload your audio file.
Step 2
Hit Convert to start your audio conversion.
Step 3
Press Download to export your converted audio file.

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Easily Change Audio Format for Free

MP3 is the most frequently-used audio format in our daily life. It can be opened on nearly all devices. Each audio format has its pros and cons. For example, MP3 occupies less storage but may be slightly inferior in sound quality compared with AAC. Sometimes we need to change audio format based on different purposes.
WorkinTool online audio converter comes at the right place. This audio file converter is capable of converting any popular audio format. You can effortlessly change the song, sound, music, and audio recording formats without quality loss in seconds.
Supported input formats: MP3, MAV, M4A, WMA, AAC, FLAC, AC3, M4R, APE, OGG
Supported output formats: MP3, M4A, WMA, FLAC, AC3, OGG
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Why You Can't Miss WorkinTool Online Audio Converter

Fast-Speed Conversion
Fast-Speed Conversion
Get your output instantly when your internet connection is stable.
Free without Ads
Free without Ads
This music file converter is entirely free to use. Just enjoy your free audio conversions without signup and ads.
All Platforms Supported
All Platforms Supported
You can access WorkinTool online audio converter anytime on any device with internet connection. It doesn't matter if you use Mac, Windows, Linux, Android, or iPhone.
Easy and Quick
Easy and Quick
This free audio converter has a simple and intuitive interface. You can complete your audio file conversion within three steps, so you don't have to be tech-savvy.
Security Matters
Security Matters
We promise that your audio file data is 100% protected. Nobody except you can access the files you uploaded and they will be removed automatically within 24 hours.
Desktop Alternative
Desktop Alternative
Our desktop software--WorkinTool VidClipper presents more features than audio or voice conversion. It is also a video editor, video-to-audio converter, video converter, screen recorder, text-to-speech converter.

Desktop Software VS Online Tool

Desktop Software
Free Download For Win 11/10/8/7
User-friendly and easy to use
No need to upload files to the Internet
Unlimited conversions (no file size/number limit)
More audio formats supported
Custom audio/video settings
Faster conversion speed
Better output quality
Batch conversion available
No internet access required
Online Tool
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Total web-based operations without the need to download
No update hassle and system requirements to worry about
All imported files to be removed within 24 hours
File size limit--5 MB
No custom audio/video settings

WorkinTool Audio Converter

Start Your Free Plan!
Want to discover more features related to audio conversion? Free download our Windows audio converter software that can be used as an MP3, WAV, AAC, M4A or FLAC converter. It also supports converting audio in batches. Meanwhile, more practical features are at your disposal, like audio to text, GIF creation and video editing. Join our free plan immediately!
Free Download For Win 11/10/8/7