Is Audio Converter free?

Yes, and always: no credits are charged and there is no hourly allowance that could run out. You only need to be signed in.

Are my files uploaded?

Yes. Conversion runs on our servers, so the file is uploaded and comes back converted. It is processed in an isolated environment, nothing is trained on it, and both the original and the result are deleted automatically after about six hours.

Do I need an account?

Yes, a free account. The queue is counted per account, so signing in is required to start a conversion.

Which formats are supported?

You can feed almost any audio file, and video works as input too: we keep the sound and drop the picture. Output formats: MP3, WAV, FLAC, AAC, ALAC, Opus, Vorbis, AIFF and WMA. MP3 is the default and plays everywhere.

Are there any limits?

One file at a time, up to 200 MB and 90 minutes of audio.

Will I have to wait in a queue?

Conversion usually takes seconds, but files are processed in a queue, so during busy hours your job may wait a little. The page shows your position in line.

Convert audio files

Free

Free, every time. No credits are charged - you only need to be signed in.

Results are kept ~6h, then auto-deleted - download them in time.

How it works

Audio converter online free - change one audio format into another: MP3, WAV, FLAC, AAC, ALAC, Opus, Vorbis, AIFF and WMA, with no sign up and no upload. Works right in your browser on just about any input file.

Your file is converted on our servers, which means it is uploaded and comes back converted. Nobody listens to it, nothing is trained on it, and both your original and the result are deleted automatically after about six hours.

The conversion itself is free, always - no credits are charged and there is no hourly allowance to run out. You do need an account, because the queue would otherwise be wide open to anyone on the internet. Choosing a format is mostly about where the file has to play: MP3 is understood by everything, AAC suits Apple devices and phones, Opus makes the smallest files, especially for speech, and FLAC, ALAC, WAV and AIFF keep the audio lossless at the cost of size. Converting a lossy file into a lossless one does not bring back what the first encoder threw away - it only makes a bigger file.

Choose an audio or video file, or drop it onto the page. Up to 200 MB and 90 minutes long.
Pick the output format. Nine are available: MP3, WAV, FLAC, AAC, ALAC, Opus, Vorbis, AIFF and WMA.
Press Convert. If you are not signed in, the button takes you to sign-in first and brings you straight back here. The conversion is free either way.
Wait while the file uploads and runs through the queue - usually seconds, longer for a long recording.
Download the result. Save it somewhere permanent: files are removed from our servers after about six hours.