Free Online Audio Converter

This online audio converter lets you switch between popular audio formats like MP3 and WAV in just a few clicks, powered by Notie. There's no software to install since everything runs directly in your browser. It's a quick way to make sure your audio files play on any device or platform.

Try It Free

Free to start · No credit card required · Works on iPhone & Android

How to use the online audio converter

Upload your audio file

Add the audio file you want to convert to a different format.

Choose your output format

Select the target format, such as MP3 or WAV, depending on your needs.

Download the converted file

Once conversion finishes, download your audio file in the new format.

Why use Notie's online audio converter

Free to use

Convert your first audio files at no cost, with no watermark added.

No software install

Everything happens online in your browser, with nothing to download.

Fast conversion

Most audio files convert in seconds, even for longer recordings.

Works on any device

Convert audio files from your phone, tablet, or desktop browser.

Online Audio Converter FAQs

What audio formats can I convert between?

Notie supports conversion between MP3, WAV, M4A, and AAC, covering most formats used across devices and platforms.

Does converting affect audio quality?

Notie preserves audio quality as closely as possible during conversion, especially when converting to a comparable or higher-quality format.

Can I also compress my audio file to make it smaller?

Yes, use our audio compressor tool after converting if you also need to reduce the file size for easier sharing.

Can I convert video files to audio here too?

For extracting audio from a video, use our dedicated MP4 to MP3 converter, which is built specifically for that workflow.

More free tools

Audio CompressorThis audio compressor reduces the file size of your MP3, WAV, or other audio files while keeping sound quality clear, powered by Notie. It's useful when a file is too large to email, upload, or send over messaging apps. Compress your audio directly in the browser without installing anything.Learn more →MP3 to Text ConverterThis MP3 to text converter uses Notie's AI to transcribe MP3 audio files into accurate, editable text in seconds. It's ideal for podcasts, voice memos, interviews, and any recording saved in MP3 format. No software installation or manual typing required.Learn more →MP4 to MP3 ConverterThis MP4 to MP3 converter extracts the audio track from your video files and saves it as a standalone MP3, powered by Notie. It's ideal when you only need the sound, such as pulling a podcast episode from a recorded video or grabbing a lecture's audio. Everything happens online, with no software to install.Learn more →

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