Audio File Converter

Convert audio files between MP3 and WAV formats online for free. Accepts MP3, WAV, OGG, FLAC, and AAC as input. No upload, no signup. Everything runs in your browser.

Drop an audio file here, or click to browse

MP3, WAV, OGG, FLAC, AAC

How it works

  1. 1.Drop or select an audio file (MP3, WAV, OGG, FLAC, AAC)
  2. 2.Choose MP3 or WAV as your output format
  3. 3.Click Convert and processing runs in your browser
  4. 4.Download the converted file

Popular conversions

WAV → MP3MP3 → WAVOGG → MP3OGG → WAVFLAC → MP3FLAC → WAVAAC → MP3AAC → WAV

Frequently asked questions

What audio formats can I convert?

You can convert any browser-supported input (MP3, WAV, OGG, FLAC, AAC) to MP3 or WAV. Decoding uses the Web Audio API and encoding is handled client-side with no server upload.

Is my audio file uploaded to a server?

No. All processing runs entirely in your browser using the Web Audio API and client-side encoding libraries. Your files never leave your device.

Is there a file size limit?

There is no hard limit. Very large files may be slower since everything runs locally. For batch conversion or programmatic access, check out the lotsofsounds API.

Get access to royalty-free sounds today

One API key. Thousands of royalty-free sounds. Integrate in minutes, not weeks, so you can focus on what you're building.

Browse sound library →View pricing

Free to explore. No credit card required. Pro from $15/mo.