Free online Audio Converter

Convert any audio file to MP3, WAV, AAC, FLAC and more. Right from your browser

5 free actions daily
No ads
No permanent storage

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How to convert an audio file

  1. 1

    Upload your file: drag and drop, use the “Choose a File“ button, or select multiple for batch processing

  2. 2

    Select your target format (MP3, WAV, AAC, FLAC, M4A, OGG, etc)

  3. 3

    Click the “Convert” button and wait a few seconds

  4. 4

    Download the converted audio

Note: Large files may take a few extra seconds to process.

Document conversion interface preview

Why convert audio files online with Documents.io?

Turn any audio into the format you need. It's fast, easy, and free. Use our online Audio Converter to switch between MP3, WAV, AAC, FLAC, M4A, OGG, and more. No installs. Sign in and then upload, convert, and download in a click

Safe and temporary

Safe and temporary

We store your files for 4 hours max, then delete them forever. It's our way of making sure your privacy is protected without needing manual cleanup.

One tool, many formats

One tool, many formats

PDFs to Word, Excel, HTML, images, or eBooks. Easy and reliable.

All-in-one convenience

All-in-one convenience

Once processed, your files are fully compatible with Documents.io tools, letting you convert and transfer them easily and without any friction.

The audio converter you need

A simple tool that works fast and stays out of your way. No ads, no watermarks: just clean conversion.

Simple, fast, and free

Simple, fast, and free

Some tools are cluttered. This one isn't. Convert audio files in seconds. You get five conversions per day, with formatting preserved and large files are supported.

Part of something bigger

Part of something bigger

Our free converter is developed by the team behind the Documents app, ensuring seamless integration with your existing tools.

Frequently asked questions

We support MP3, WAV, FLAC, AAC, OGG, M4A, and more, including the most common video formats.
Yes. It works perfectly on iOS, Android, or any mobile browser.
Yes. Just upload and convert.
Not for the online tool, but the iOS app gives you powerful audio and file management tools in one place.
Yes. Your files never leave your device. Everything is processed securely in your browser.
Absolutely. It’s a cross-platform tool that works on any device with a browser.
Yes, Documents.io lets you convert any supported audio format to MP3 instantly and for free.
Absolutely. You can convert your audio into formats like M4A or AAC, which are commonly used for ringtones and audio editing.
Our tool is designed to preserve original audio quality, but output may vary slightly depending on the selected format.
Yes. Everything happens in your browser—no need to download software or install extensions.
Documents.io provides one of the easiest and fastest online audio converters with support for all major formats and devices.
Yes, you can convert multiple audio files at once.