Free Audio Speed Changer
Speed up or slow down an audio file, directly in your browser.
Add an audio file to change speed
Choose an MP3, WAV, OGG, M4A, or FLAC file.
Maximum 100 MBProcessed in your browser. Your audio never leaves your device.
How to change audio speed
- Choose an audio file.
- Pick a speed from 0.5× to 2×.
- Select Change speed.
- Download the result.
How this works
Your browser decodes the audio, then renders it at your chosen speed using the Web Audio API's playback rate control, before encoding the result as a WAV file. This changes both the speed and pitch together, similar to classic tape-speed style playback.
Common use cases
- Speed up a long recording to save listening time
- Slow down audio to transcribe it more easily
- Adjust a podcast or lecture's playback speed
Frequently asked questions
Is this audio speed changer free?
Yes. It is completely free, with no signup and no limits.
Is my audio uploaded anywhere?
No. The audio is processed entirely in your browser. Nothing is sent to Inqita or stored.
Does the pitch change along with the speed?
Yes, pitch changes along with speed here, similar to classic tape-speed playback — faster sounds higher-pitched, slower sounds lower-pitched.
What speeds are supported?
0.5×, 0.75×, 1.25×, 1.5×, and 2×.
What format is the output?
WAV, a universally supported, uncompressed audio format.