Audio Tools
Audio Speed Changer
Change audio playback speed from 0.5x to 2x and see the new estimated duration. 100% client-side — your file never leaves your device.
Runs entirely in your browser — your audio never leaves this device
Private & client-side
Your audio files are processed locally in your browser whenever supported. Files are not uploaded to our servers.
Drop your audio file here
or click to choose from your device
Choose Audio FileQuestions
Frequently asked questions
Is the audio speed changer free?
Yes. It is completely free, with no sign-up and no limits.
Are my audio files uploaded to a server?
No. Your audio is decoded, re-rendered at the new speed, and exported as WAV entirely in your browser. The file never leaves your device.
Does changing speed also change pitch?
Yes. This tool changes speed and pitch together (tape-style). Faster playback raises the pitch; slower playback lowers it.
What output format does it produce?
The result is exported as a WAV file, which is universally playable and preserves the full quality of the processed audio.