Audio Speed Changer

Make audio faster or slower – speed factor from 0.25x to 4x (MP3, WAV, OGG, M4A, FLAC)

Drag & drop an audio file or click to browse

How to change audio speed:

  1. Select an audio file (MP3, WAV, OGG, M4A, FLAC, etc.)
  2. Adjust the "Speed multiplier" slider in the settings panel (right) – values below 1.0 = slower, above = faster
  3. Click "Preview Speed" to hear the effect (no file saved)
  4. Choose output format (MP3 recommended) and bitrate
  5. Click "Apply Speed & Export" – the speed‑changed file will be created locally
  6. Download the result with your desired tempo (pitch changes along with speed)

All processing happens in your browser – files never leave your device. Speed change uses sample rate conversion (pitch changes naturally).