Change audio speed without pitch shift.

Speed up lectures, slow down music for practice, or adjust playback rate — all while preserving the original pitch.

Supports MP3, WAV, OGG, FLAC and more

How to use Speed Changer.

4 simple steps to get started.

1
Step 1

Upload audio

Select your audio file to adjust.

2
Step 2

Set speed

Choose your desired playback speed.

3
Step 3

Preview

Listen to the speed-adjusted audio.

4
Step 4

Export

Download the modified audio file.

Why use Speed Changer?

Everything you need to know about speed changer.

Speed Changer — free & online

Speed up lectures, slow down music for practice, or adjust playback rate — all while preserving the original pitch. No downloads, no sign-ups, and no file uploads to external servers. Everything runs locally in your browser using the Web Audio API, keeping your files completely private and secure.

How does Speed Changer work?

Simply upload your audio file — MP3, WAV, OGG, FLAC, or M4A — and use our intuitive editor to make your changes. Upload audio, Set speed, Preview, Export. Once you're satisfied, export the result in your preferred format instantly.

Who is Speed Changer for?

Whether you're a podcaster, musician, content creator, or just someone who needs a quick audio edit, Speed Changer is built for you. It works on any device — desktop, tablet, or mobile — across all modern browsers including Chrome, Firefox, Safari, and Edge.

Frequently asked questions.

Everything you need to know about Speed Changer.