AI Music Extender

This tool makes a song longer without an obvious loop or a clumsy repeated chorus. Instead of pasting the same section twice, it finds the track's beats and section boundaries, then adds length at those natural points so the longer version still plays as one continuous piece.

To use it, open the editor in your browser and load an audio file (MP3 and WAV both work). The tool reads the song's structure, you type the duration you want, and it extends the track to match. Preview the result, nudge a section if a join feels off, and download. Nothing to install, no account.

A common case: you have a 90-second song but a two-minute video, and you need the music to reach the end without an awkward silence or a hard restart. It also works for stretching a short intro or backing loop to cover a longer performance or presentation.

Worth knowing up front: it works with the audio you already have, so it repeats and re-stitches existing material rather than generating new melodies. It won't compose a fresh bridge, but it hides the joins so the added length sounds intentional.

The usual worry is whether an extended track sounds fake. Because each splice lands on a beat or section boundary, it's hard to hear, so the longer version normally sounds natural. Large jumps in length are easier to catch, so extend in moderate steps and listen before you export. The same editor can also shorten a song or trim sections if you need to go the other way.