Free Audio Speed Changer
Speed up or slow down any audio file from 0.5x to 2x without changing pitch. 100% free, works in your browser.
Zero Cloud Uploads (100% Private)Instant Browser Processing
Select Audio or Video File
Drop MP3, WAV, AAC, OGG, or MP4 video here or click to browse
MP3•WAV•M4A•OGG•MP4 Video
0.5x – 2x
Speed range
Pitch safe
No chipmunk effect
100%
Free, no limits
0 uploads
Stays on your device
How to change audio playback speed — 3 steps
Works in Chrome, Firefox, Safari, and Edge. No installation.
01
Upload your audio file
Click "Choose File" and select an MP3, WAV, OGG, or M4A file from your device.
02
Set the playback speed
Click the Speed tab and use the slider to choose your speed — 0.5x, 1.25x, 1.5x, 1.75x, 2x or anywhere in between.
03
Export & download
Click "Export & Save" to download the speed-adjusted audio. Pick MP3, WAV, FLAC or OGG as output.
Popular speed changer use cases
Listen to podcasts at 1.5x or 2x speed
Slow down music to learn guitar, piano, or vocals
Speed up lectures and audiobooks to save time
Slow motion audio for sports or pronunciation practice
Speed up long interview recordings for review
Practice language pronunciation at 0.75x speed
Frequently asked questions
Can I change audio speed without changing the pitch?
Yes. Wyori preserves pitch when changing playback speed, so a 2x speed-up sounds natural — not like a chipmunk — and 0.5x sounds normal, just slower.
What speed range can I set?
The speed slider goes from 0.5x (half speed) to 2.0x (double speed). 1.5x and 1.75x are the most popular for podcasts and lectures.
Can I use this to practice music at a slower tempo?
Yes. Slowing audio to 0.5x–0.75x is popular with musicians who want to learn complex parts. The pitch stays in tune so the music does not sound distorted.
What formats are supported?
MP3, WAV, OGG, M4A, and AAC. The output is a downloadable audio file.
Is this tool free with no watermarks?
Yes — 100% free. No account needed. No watermarks. Your file never leaves your device.
More free audio tools
Share your audio with a branded short link
Create a clean, trackable link for your audio file. See clicks and analytics in real time.
Create a free short link