Question 1

Is my file uploaded anywhere?

Accepted Answer

No. The converter is FFmpeg running inside your browser, so the file is read and converted on your own device and the result is saved straight back to it. Wave never receives the audio, the video or the file name. We count only that a conversion happened, with the formats and a rough size range.

Question 2

Is this audio converter really free?

Accepted Answer

Yes. There is no account, no watermark and no daily limit, because the work happens on your device instead of on our servers.

Question 3

Which formats can I convert?

Accepted Answer

You can open almost any audio or video file: mp4, mov, webm, mkv, m4a, aac, wav, mp3, ogg, opus, flac and more. You can save the audio as MP3, M4A (AAC), WAV, OGG (Vorbis) or FLAC. For a video, the converter keeps the sound and drops the picture.

Question 4

Which quality should I pick?

Accepted Answer

For speech, 128 kbps MP3 or M4A sounds clean and keeps the file small. For music, 192 or 256 kbps; 320 kbps is the MP3 maximum. WAV and FLAC are lossless, so they have no quality setting, but a WAV file is five to ten times the size of the same MP3. Converting can't add quality the original never had.

Question 5

Is there a file size limit?

Accepted Answer

Files up to 500MB. Because everything runs in your browser's memory, files over 200MB can fail on phones and older computers. If that happens, close other tabs or convert to MP3 instead of WAV.

Question 6

Why convert a file before transcribing it?

Accepted Answer

Some recordings use a codec a transcription service can't decode, or are video files far bigger than the audio inside them. Converting to MP3 fixes both: the file is small and readable everywhere. After converting, the free Wave AI transcription tool turns it into a transcript with speaker labels and a summary.

Free Audio Converter That Never Uploads Your File

How it works

Common questions