Speed up or slow down audio with optional pitch preservation
On
Drop audio files here or click to browse
Supports MP3, WAV, FLAC, AAC, OGG and more
Change speed without affecting pitch.
From 0.25x to 4.0x speed.
Process multiple files at once.
All processing in your browser.
Speed up or slow down any audio file with optional pitch preservation.
With pitch preservation, audio maintains its natural tone at different speeds.
Supports 0.25x to 4.0x speed with high-quality output.
Yes, our speed changer uses advanced audio processing to adjust playback speed while preserving the original pitch. This means voices sound natural at faster or slower speeds without the chipmunk or slow-motion effect.
Yes, our tool is completely free with no limits on usage. Change the speed of any audio file as many times as you need without signing up or paying anything.
You can adjust audio speed from very slow (0.25x) to very fast (4x) playback. Common uses include 1.5x or 2x for faster listening of podcasts and audiobooks, or 0.5x for slowing down music to learn instruments.
Our speed changer supports all major audio formats including MP3, WAV, OGG, FLAC, AAC, and M4A. Upload your file in any format and download the speed-adjusted version in your preferred output format.