Pitch & Speed Changer
Easily modify the tempo and key of your music without leaving your browser.
Audio Pitch & Speed Changer
Shift the musical key and adjust the playback speed of any sound file in real-time.
What is it?
The Pitch & Speed Changer is a free, powerful web tool designed to alter the characteristics of an audio file. You can change the "Speed" (Tempo) to make a song play faster or slower, and you can change the "Pitch" (Key) by exact semitones to make it sound higher or lower. Whether you upload a .wav, an .mp3, an .ogg, or an .m4a file, everything is processed locally in your browser ensuring complete privacy.
How to use it?
Upload your audio file and use the intuitive sliders in the editor. Adjust the Speed slider to create popular "Nightcore" or "Slowed" effects. Move the Pitch slider left or right to change the musical key. You can preview the changes live by pressing the play button. Once satisfied, hit the Export button to instantly download your modified track as a high-quality .wav or a compressed .mp3 file.
Who uses this tool?
This tool is a favorite among musicians who need to transpose backing tracks to match their vocal range, DJs looking to beatmatch songs with different tempos, and content creators producing unique sound effects (like chipmunk voices or deep cinematic vocals) for their videos.
Select Audio File
Supported formats: WAV, MP3, M4A, OGG, FLAC
Adjustments
When you increase or decrease the Speed, the original Pitch (Key) of the audio changes naturally. If your goal is to change the speed but keep the original key, use the table below to compensate by adjusting the Pitch slider.
| If you set Speed to: | Change Pitch to: | If you set Speed to: | Change Pitch to: |
|---|---|---|---|
| 1.06x | -1 | 0.94x | +1 |
| 1.12x | -2 | 0.89x | +2 |
| 1.19x | -3 | 0.84x | +3 |
| 1.26x | -4 | 0.79x | +4 |
| 1.33x | -5 | 0.75x | +5 |
| 1.41x | -6 | 0.71x | +6 |
| 1.50x | -7 | 0.67x | +7 |
| 1.59x | -8 | 0.63x | +8 |
| 1.68x | -9 | 0.59x | +9 |
| 1.78x | -10 | 0.56x | +10 |
| 1.89x | -11 | 0.53x | +11 |
| 2.00x | -12 | 0.50x | +12 |