Which formats can I convert between?
You can load WAV, M4A, AAC, OGG, FLAC, and WebM audio and export MP3, WAV, M4A, AAC, or OGG.
Is this audio converter free?
Yes. It is a completely free online audio converter with no signup and no watermark.
Does the audio get uploaded?
No. The conversion runs entirely in your browser, so the audio file never leaves your device.
Can I choose the quality?
Yes. For MP3, M4A, AAC, and OGG you can pick the bitrate. WAV is exported as uncompressed PCM, so it has no bitrate setting.
Which bitrate should I pick?
192 kbps is the default and is transparent enough for almost everything played on phones, laptops, and car stereos. Going to 320 is only worth it when the source is lossless (a FLAC or a WAV) and you are converting once. Converting an already-lossy file at 320 mostly buys file size.
Can I convert to a lossless format?
You can output WAV, which stores 16-bit samples uncompressed, but that only preserves whatever came in. If the input was a 128 kbps MP3, the WAV is a large, uncompressed copy of a lossy file. There is no FLAC output.
Why is my WAV file ten times bigger?
Because WAV does not compress. 16-bit stereo at 44.1 kHz is a fixed 1411 kbps, roughly 10 MB per minute, no matter what the audio contains. That is the point of it, and it is why WAV is an editing format, not a delivery format.
Does it handle FLAC and WebM audio as input?
Yes, the input side accepts WAV, M4A, AAC, OGG, FLAC, WebM audio, and MP3. The output side is the narrower one, with five formats to choose from.
Do the ID3 tags survive?
No. The converter re-encodes the audio stream and writes a clean file. Title, artist, album, and cover art are not carried across, so re-tag the output in your player or a dedicated tagging tool.
Is any of this uploaded?
No. The audio is decoded and re-encoded inside your browser. The only network request is for the WebAssembly encoder itself, which is fetched from a public CDN on the first conversion and cached afterwards.