Audio Converter — Free, No Signup

Convert audio between MP3, WAV, FLAC, ALAC, M4A, AAC, OGG, OPUS, AIFF and WMA with bitrate control. Also imports DSD (.dsf/.dff), WMA and more. FFmpeg runs in WebAssembly, right on your device. No signup required.

How it works

1. Upload an audio file: MP3, WAV, FLAC, ALAC, M4A, AAC, OGG, OPUS, AIFF, WMA and more.
2. Pick the output format and bitrate: Choose your target format and control the bitrate for size vs. quality.
3. Download the converted file: FFmpeg runs in WebAssembly right on your device — nothing is uploaded.

Frequently asked questions

How is this different from an online audio converter?
Most online converters upload your file to a server. This runs the same FFmpeg engine those services use, but compiled to WebAssembly and executed entirely in your browser — the audio file never leaves your device.

Which formats are supported?
MP3, WAV, FLAC, ALAC, M4A, AAC, OGG, OPUS, AIFF and WMA, plus importing DSD (.dsf/.dff) files.

Is there a file size limit?
There’s no artificial cap, but very large files take longer and use more memory since your own device does the conversion.

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No account, sign-up, or login is required to use this tool -- everything is processed on your own device and is never sent to a server. Browse more Audio & Video tools, or see all free AI tools at utilAIfree.com.