Song Extender

A song extender makes a track run longer than it was recorded. Audjust does this by finding the natural beats and section boundaries in your audio, then repeating and stitching the right parts so the track reaches your target length without an obvious loop or a jarring jump back to the start.

To use it, open Audjust in your browser and upload an MP3 or WAV. Set a new length longer than the original. The editor finds clean cut points, builds the extended version, and lets you preview it before you export.

This helps when a song ends too soon for what it has to fill. If a backing track runs out before your dance routine or stage walk-on is done, you can stretch it to cover the whole performance. The same goes for matching a short clip to a longer video edit or a presentation slide that stays up longer than the music.

One thing worth knowing: the result sounds best when you extend by repeating whole musical sections rather than padding a short snippet. Give it a few seconds of real song to work with and the added length blends in far better.

People usually ask whether the track still sounds natural. Because the extension happens on the beat and at section edges, not by slowing the audio down or fading in silence, the pitch and tempo stay exactly the same. It plays like a slightly longer take of the original.

It is free, works right in your browser, and needs no install.