Song Extender Online

A song extender online makes a track longer without it sounding like a clumsy loop or a copy-pasted chorus. Audjust runs in your browser: it finds the natural beats and section boundaries in your audio, then repeats and rejoins parts at those points so every join lands on the beat.

To use it, open the editor and upload your file (MP3 or WAV). Audjust analyzes the track and shows you a timeline. Type the new total length you want, say 4:00 instead of 2:45, listen back to check the extended sections, then export.

This helps when a song ends before your content does. If you have a three-minute video, a slideshow, or a stage routine that needs four minutes of music, you can stretch a shorter track to match instead of fading it out early or restarting it. The same goes for an instrumental or backing track that has to keep playing under a presentation without an obvious seam.

Extending works best when the song has a steady beat and clear repeating sections, since those give Audjust good points to splice. Sparse or freeform audio has fewer natural seams to use.

The question most people ask is whether this adds new, AI-composed music. It doesn't. Audjust rearranges and repeats the audio you already have to reach a longer duration, so the result keeps the exact sound of the original recording rather than generating new parts. If you instead need a track to be shorter, the same editor trims and shortens it the same beat-aware way. It's free and needs no account or install.