AI Extend Song

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When a track ends before you need it to, this tool extends it to a longer target length. It reads the song's beats and section boundaries, then repeats and stitches the right parts so the result lands at your duration and still sounds like one continuous track instead of an obvious loop.

To use it: upload an MP3 or WAV, type the new length you want, and the tool marks the beats and section edges it found. Preview the join, drag it to a better spot if needed, and download the longer file. It all runs in your browser, and it's free.

This helps when a song is too short for what it has to cover. A 90 second track that needs to fill a three minute slideshow, a background bed that has to last a full presentation, or music for a dance routine timed to the second, you can stretch any of them to fit without the audio cutting out early.

One tip: the cleaner the repeated section, the better the seam. Songs with a steady beat and a clear chorus or instrumental passage extend more smoothly than ones that change constantly. Put the join inside a repeating part rather than over a one time fill or a vocal phrase.

The common question: does it make new music? No. It writes no fresh notes or instruments. It rearranges and repeats the song's own sections to reach a longer length, which is why the extended version stays true to the original recording.