Change Audio Speed
Speed up or slow down a song from 0.5× to 2× without the chipmunk effect — pitch stays the same unless you want to change it too. Free, nothing uploaded.
Change speed now →Runs 100% in your browser · Your files never leave your device
How to change audio speed
- 1
Open the tool
Click the button above to open Speed & Pitch.
- 2
Pick a speed
Choose anywhere from 0.5× (half speed) to 2× (double speed). Leave pitch at 0.
- 3
Apply & download
Click Apply, preview, and download your retimed audio.
Why use SoundForge
- Keeps pitch natural while changing speed
- Slow down tracks to learn or transcribe
- Speed up lectures and audiobooks
- Free — no signup or watermark
- Nothing is uploaded — fully private
- Nothing to install
Frequently asked questions
- Can I slow down a song without changing the pitch?
- Yes — tempo changes independently of pitch, so the key stays the same.
- How do I speed up an audio file?
- Drop in your file, pick a speed from 0.5× to 2×, and download.
- Is it free?
- Yes — free, no signup, no watermark, runs in your browser.
- Are my files uploaded?
- No. Audio is processed locally and never leaves your computer.