Music Speed Changer
Speed up or slow down a song
Change the tempo of a song, a lesson or a podcast. Keep the original pitch for practice and learning, or let the pitch follow the speed for sped-up and nightcore versions.
Your files are not uploaded to any server, all processing happens in your browser. Remember to save your files to your device after processing. MP3 and WAV are edited without re-encoding, so they keep their original quality.
How it works
- Drop a song or audio file into the box above.
- Move the Speed slider: below 1× slows it down, above 1× speeds it up.
- Keep the original pitch, or turn on “Change the pitch with the speed” for a sped-up or slowed sound.
- Press Preview 10 seconds to check it, then Apply and save.
Frequently asked questions
Can I slow down a song without changing the pitch?
Yes. By default the pitch stays the same at any speed, which is ideal for learning or transcribing a song.
How do I make a sped-up or nightcore version?
Choose the Sped up or Nightcore style: the speed goes up and the pitch rises with it, just like playing a record faster.
Which speeds are possible?
Anything from half speed (0.5×) to double speed (2×), in small steps.
Is my file uploaded?
No. All processing happens in your browser and the file never leaves your device.