M4A Converter

Convert MPEG-4 Audio files to any format — free, fast, and 100% private

音频20+ Output Formats

选择文件

或将文件拖放到此处

最大文件大小：2GB

您的文件在浏览器中本地处理，不会上传到任何服务器。

Instant Conversion

Convert M4A files in seconds using WebAssembly

100% Private

Files never leave your device — zero server uploads

Free Forever

No limits, no registration, no watermarks

What is M4A?

MPEG-4 Audio (.m4a)

MPEG-4 Audio (.m4a) is a audio file format.

Convert M4A to Any Format

Select an output format below to convert your MPEG-4 Audio file

M4AMP3 M4AWAV M4AFLAC M4AAAC M4AOGG M4AWMA M4AAIFF M4AAIF M4AOPUS M4AAMR M4AAPE M4AAU M4AMID M4AMIDI M4AAC3 M4ADTS M4AWV M4ACAF M4ARA M4AVOC

How to Convert M4A Files

Open Convert999 and upload your M4A file by clicking "Choose Files" or dragging it into the converter.

Select the desired output format (e.g., PDF, JPG, PNG, DOCX, MP3, or any of 20+ supported formats).

Click "Convert Now" and download your converted file instantly. No waiting, no server processing.

M4A Converter FAQ

How do I convert M4A files?

Upload your M4A file to Convert999, select the desired output format, and click convert. The conversion happens instantly in your browser — no file uploads to any server.

What formats can I convert M4A to?

You can convert M4A to 20+ formats including MP3, WAV, FLAC, AAC, OGG and more.

Is the M4A converter free?

Yes! Convert999 is 100% free — no registration, no watermarks, no file limits. Convert unlimited M4A files at no cost.

Can I convert M4A files on my phone?

Yes, Convert999 works on any device with a web browser — iPhone, Android, tablet, or desktop. No app installation needed.

Is it safe to convert M4A files online?

Convert999 processes all files locally in your browser using WebAssembly technology. Your files never leave your device, ensuring complete privacy.

What is the maximum M4A file size I can convert?

Convert999 supports files up to 2GB. Since processing happens locally, performance depends on your device's available memory.

Related Tools

M4A Format Details

Full specification & info

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