Free MP3 Length Changer

This tool changes how long an MP3 runs. Shorten a track, stretch it to a longer target time, or cut sections you don't want, then download the result. Everything happens in your browser, so there's nothing to install and no account to create.

Load an MP3 or WAV by uploading a file. Type the length you want or drag the timeline to set it. The tool detects beats and section boundaries, so when it removes or repeats parts, the edit lands on the beat instead of cutting mid-phrase. Preview it, then export.

People usually come here when a song is the wrong length for a fixed slot. If your Reel runs 30 seconds but the track is 3 minutes, pull it down to exactly 30 without an abrupt ending. It works the other way too: turn a short clip into a longer one to cover a full slideshow, performance, or presentation. It's also handy for ringtones and tightening a long intro or outro.

One thing worth knowing: the result sounds best when the new length lands near a natural musical section. Trimming a clean 32 or 48 beats reads better than chopping an odd few seconds from the middle.

A common question: does changing the length speed the song up or change its pitch? No. The tempo and pitch stay the same. It edits actual sections of the track, so it still sounds like the same song, just shorter or longer.