AI Extend Music

This page is for when you need a song to run longer than it does. Audjust analyzes your track, detects its beats and section boundaries, then repeats and joins sections at those musical seams. The longer version sounds like it was that length all along, not a song that audibly jumps back on itself.

To use it, open the tool and upload an audio file (MP3 or WAV both work). It reads the track and shows a timeline. Set the new total length you want, longer than the original, and it rebuilds the song to fit, snapping its added repeats to the beat. Play it back, nudge where the extra time goes if you want, then download.

A common case: you have a 2-minute background track but your video or slideshow runs 3:30. Extend the song to hit 3:30 exactly so the music lands with the last frame. The same works for a performance or ceremony that has to fill a set time.

Worth knowing: this works best on songs with a steady repeating part, like a chorus or an instrumental groove. A piece that never repeats gives the tool less to reuse, so choose where it stretches with care.

The question people ask most: does it generate new music? No. It does not invent notes or compose new parts. It rearranges and repeats what is already in your file at musical boundaries, so the result stays true to the original recording.

It is free, needs no signup or install, and runs right in your browser.