Song Repeater

A song repeater takes a track that's too short and makes it run as long as you need. Drop in an MP3 or WAV, set a target length or number of repeats, and Audjust extends the song to fill that time. Instead of pasting copies end to end, it finds the beats and section boundaries and loops through those, so each pass flows back into the next without an obvious jump.

To use it: open the editor in your browser, upload your file, and pick a duration or repeat count. The tool builds the longer version, you preview it, and you download the result.

This is for when a song is shorter than the moment it has to cover: a 90-second track that needs to run under a five-minute slideshow, continuous music for a workout or dance set, or background audio for a video that keeps playing past where the original ended.

The cleaner the loop points, the better the repeat sounds, so a track with a steady beat and clear sections holds up better than a free-form or fade-out one. Preview before you export, and drag the loop region a little if a transition feels off.

The same editor can also shorten a song or trim sections if you need it shorter instead of longer.

Everything runs in your browser. It's free, with no account and nothing to install.