Audio Converter & Joiner
Change a recording into a format that'll actually play. Stick several together. Cut off the dead air at the start and fade the end out.
Private by design: it all happens in your own browser. Nothing is uploaded — which matters more than usual here, because a voice recording is often something you wouldn't hand to a stranger.
Drop your audio here
or click to choose — add several and they'll be joined in order
MP3 · WAV · M4A · AAC · OGG · Opus · FLAC — and the sound out of a video
0 tracks
Trim
Done
A recording nobody can hear
Phone voice memos and meeting recordings come out far too quiet. Turn on Even it out and it lifts the whole thing as loud as it will go without distorting — usually the difference between unusable and fine.
Several files, one track
Drop in as many as you like and they're joined end to end in the order they're listed. Different sample rates and mixed mono and stereo are handled — they get matched up rather than played at the wrong pitch.
What it can't open
WMA, AIFF and AMR aren't formats a browser can decode, so they're skipped rather than mangled. Everything common — MP3, WAV, M4A, OGG, FLAC — is fine, including the audio inside a video file.
