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Audio Speed Changer - Change MP3/WAV Tempo | FusioFiles

Speed up or slow down audio files without changing pitch (simple resampling). Free online tool.

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Audio Speed Changer

Speed up or slow down audio files without changing pitch (simple resampling). Free online tool.

1

Select Sound

Upload the MP3 or WAV file you wish to modify.

2

Adjust Tempo

Use the slider to increase or decrease the playback speed.

3

Export Audio

Download the processed audio file with your changes applied.

Change the tempo of your music or voice recordings. Useful for practicing instruments, transcribing, or creating nightcore/slowed effects.

Key Features

Wide Range

Adjust speed from 0.5x slo-mo to 2.0x fast-forward.

Format Support

Works with MP3 and WAV files.

Client Side

Process audio securely in your browser.

WAV Export

Download the modified track as a high-quality WAV.

Frequently Asked Questions

Current implementation changes speed by resampling, which may affect pitch slightly depending on the method. We are working on pitch-preserving timestretch.

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